IMPROVEMENT OF RIVERS AND HARBORS IN THE KANSAS CITY, MO., DISTRICT This district comprises a portion of southwestern Iowa; northwest- ern, central, and western Missouri; northern Kansas; southern Nebraska; and a portion of northeastern Colorado embraced in the drainage basin of the Missouri River and tributaries from Rule, Nebr., to the mouth. The report on the navigation project for the section of the Missouri River from Kansas City, Mo., to Rule, Nebr., is in- cluded in report upon improvement of rivers and harbors in Omaha, Nebr., district. IMPROVEMENTS Navigation Flood control-Continued Page Page

1. Missouri River, Kansas City 8. Kanopolis Reservoir, Mis- to Rulo__ 741 souri River Basin, Kans__ 760 2. Missouri River, Kansas City 9. Tuttle Creek Reservoir, Mis- to mouth------741 souri River Basin, Kans__ 762 3. Other authorized navigation 10. Topeka, Kansas River, Kans_ 763 projects _ 745 11. Chariton River, Mo ...... 765 12. Pomme de Terre Reservoir, Flood control Missouri River Basin, Mo. 766 13. Other authorized flood con- 4. Missouri River Basin, Kan- trol projects______767 sas City district-___ 745 14. Inspection of completed pro- 5. Missouri River agricultural jects- 768 levees, Sioux City, Ia., to 15. Flood control work under mouth_ 747 special authorization .... 768 6. Kansas Citys, on Missouri and Kansas Rivers, Mo. General investigations and Kans_ 750 7. Harlan County Reservoir, 16. Examinations and surveys _ 769 Missouri River Basin, 17. Collection and study of basic Nebr- -- 758 data------769

1. MISSOURI RIVER, KANSAS CITY TO RULO See report on Missouri River, Kansas City to Sioux City, page 772.

2. MISSOURI RIVER, KANSAS CITY TO THE MOUTH Location. The Jefferson, Madison, and Gallatin Rivers conjoin at Three Forks, Mont., to form the Missouri River, which flows south- easterly 2,464.41 miles across or along 7 States to the Mississippi River, 17 miles above St. Louis. For description, see page 1149, Annual Report for 1932. Practically the entire length of the section from Kansas City to the mouth is contained within the State of Missouri. Previous projects. The first appropriation for improvement by regulation was made in the River and Harbor Act of June 18, 1878. The original plan for comprehensive improvement was adopted by the 1 1941 adjusted mileage. 741 742 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

River and Harbor Act of August 2, 1882, modified by River and Har- bor Acts of July 5, 1884, September 19, 1890, and June 13, 1902. For further details, see page 1891 of Annual Report for 1915, and page 1153 of Annual Report for 1938. Existing project. This provides for a channel of 9-foot depth and width not less than 300 feet, to be obtained by revetment of banks, con- struction of permeable dikes to contract and stabilize the waterway, cutoffs to eliminate long bends, closing of minor channels, removal of snags, and dredging as required. Length of section under improve- ment (mouth to upper end of Quindaro Bend) is 386.2 miles.1 Or- dinary and extreme fluctuations of stage are 16 and 38 feet, respectively. The estimated cost for new work (1955) is $120,000,000 exclusive of amounts expended on previous projects. The estimated cost for annual maintenance is $2,550,000. The existing project was authorized by the following River and Harbor Acts:

Acts Work authorized Documents

July 25,1912 Project adopted for securing a permanent navigable H. Doc. 1287, 61st Cong., 3d sess. channel of 6-foot depth. (contains latest published map). Aug. 8,1917 This act fixed the upstream limit of the improvement H. Doc. 463, 64th Cong., 1st sess. at the upper end of Quindaro Bend (386.2 miles (contains latest published map). from the mouth), and provided for dredging. Mar. 3,1925 For a minimum width of 200 feet, with a reasonable additional width around the bends. Aug. 30, 1935 For completion of improvement from the mouth to H. Doec. 238, 73d Cong., 2d sess. Sioux City, Iowa. (contains latest published map). Mar. 2,1945 For securing a navigable channel of 9-foot depth and H. Doc. 214, 76th Cong., 1st sess, a minimum width of 300 feet. (contains latest published map).

Local cooperation. The project provides that cooperation from benefited localities may be required, in case a comprehensive plan is adopted by Congress, for an apportionment of expense, where any improvement confers special benefit; and receipt of contributions from private parties, to be expended with Government funds upon authorized works where such would be in the interest of navigations is authorized by the River and Harbor Act of March 4, 1915. The Secretary of the Army has approved the general principle of coopera- tive construction on the Missouri River below Kansas City on the basis that 25 percent of the cost of any special installation shall be paid by the United States and 75 percent by the local interests. The total amount contributed by local interests in cooperation with the United States from 1918 to June 30, 1955, was $675,662.80, of which $8,647.11 was returned to contributors. Terminal facilities. Facilities for transferring grain, petroleum products, and other commodities are maintained at various locations on this section of the river. These facilities are listed in the following table:

1 1941 adjusted mileage. RIVERS AND HARBORS--KANSAS CITY, MO., DISTRICT 743

Location 2

of facility I Miles Description above mouth Nearest town (1941 mileage)

E xisting fa ilities: Steel pipe unloading facility______...... 384. 0 Kansas City, Kans. O i l -l o ad i n g f a c i l i t i e s ...... 379. 6 Do. Grain elevator, conveyor, and dock, publicly owned, leased 379. 1 Do. to private concern. Warehouse, escalator, bulk-handling dock, and concrete 378. 6 Kansas City, Mo. loading platform, publicly owned, leased to a private cor- poration. Loading platform ...... 378. 2 Do. Warehouse and concrete loading platform, publicly owned, 377. 2 Do. leased to Department of the Army. Facilities for transferring sand and gravel..._ _ _ 377. 1 Do. Facilities for transferring sand and gravel and wharf-...... 376. 8 Do. Orain-loading facilities_ __ 375. 55 Do. Bulk-handling facilities______3 371.3 Randolph, Mo. Facilities for transferring sand and gravel__- _..._._.. .._ 321.8 Lexington, Mo. Grain-loading facilities. _- .. ... _...... _...... 297. 15 Waverly, Mo. Facilities for transferring sand and gravel_ ------.-.---..-- 296. 9 Do. Do _ ...... - ___ _ -_. _ _ -__ .. .- .. 3 227. 2 Glasgow, Mo. Grain-loading facilities______.... _____.... S226. 9 Do. Facilities for transferring sand and gravel__------.- 196. 5 Boonville, Mo. Do...... 3 186. O0 Rocheport Mo. 142. 8 Jefferson dity, Mo. Dock, barge unloading_------.-..-- .-- 116. 3 Chamois, Mo. Facilities for transferring sand and gravel-.------..----.-__-8 96. 5 Hermann, Mo. D o _... ..---- .------.---- - .- .-- .- .--- 67. 5 Washington, Mo. D o -_ ------28. 0 St. Charles, Mo. Proposed facilities: Grain-loading facilities__ ___ 384. 4 Kansas City, Kans. Sand-loading facilities____..__.. ______3 382. 5 North Kansas City, Mo. Grain-loading facilities _ ...... _.. ..._ . ..__ _ 380. 0 Kansas City, Kans. Oil-loading facilities______.______.___.... 379. 6 Do. Molasses-unloading facilities...... _ .... _...... _... _ 378. 1 Kansas City, Mo. Fixed general purpose dock____...... __.....__...... 376. 73 Do. Coal-unloading dock ...... __ _ .._ _ . ...._ .._._...... 375. 55 Do. Oil-unloading facilities __-._ _ .. ______-.. - - 375. 55 Do. 'Coal-unloading facilities_,______.__.____ . 369. 8 Do. Oil-unloading facilities ...___ ...... ______...... 367. 8 Sugar Creek, Mo. Grain-unloading facilities______. .____... 322. 3 Lexington, Mo. General purpose wharf facilities __ ...... 322. 2 Do. Oil-unloading facilities_____..__.______. .. 3 257. 0 DeWitt, Mo. General purpose facilities______.... _...... 196. 5 Boonville, Mo. Oil tank and unloading facilities .._...... 196. 0 Do. Oil-unloading facilities ...... 192. 0 Do. Wharf and barge loading facilities___.__ _ 143. 0 Jefferson City, Mo. Grain-loading facilities______.. ____ 134. 0 Osage City, Mo. Bulk-handling facilities ..... 5.0 St. Charles, Mo.

1 Privately owned and operated unless otherwise indicated. 2 On right bank unless otherwise indicated. $ On left bank. Operations amd results during fiscal year. New work: This work consists of construction, by contract, of 25 dikes and 53 dike extensions totaling 20,194 linear feet with 2 dikes and 1 dike extension totaling 930 linear feet under construction but not yet completed and 7 lengths of revetment totaling 9,139 linear feet completed during the fiscal year. Constructed by hired labor were 18 dikes and 13 dike extensions totaling 11,516 linear feet with 1 piece of revetment 544 feet in length under construction but not completed during the fiscal year. The total cost of new work (including a pending adjustment of $8,098) was $1,948,908. 744 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 Maintenance: This work consisted of the repair, by contract, of 13,555 linear feet of dikes and 11,568 linear feet of revetment, at a total cost of $797,614, and the accomplishment, by hired labor, of the following: Removal of 6,837,315 cubic yards from 5 localities by the U. S. Dredges Black, Mitchell, and Keoknuk, at a total cost of $675,779; the repair of 27,823 linear feet of dikes and 104,074 linear feet of revetment at a total cost of $1,049,499; reconnaissance and channel marking for navigation at a total cost of $347,180; real estate man- agement services at a total cost of $519; stream gaging for special studies and working data at a cost of $22,853; the total cost during the fiscal year, of all maintenance work, including engineering, de- sign, surveys, supervision and administration and a pending adjust- ment of $8,515 was $2,901,959. The total costs for the fiscal year were as follows:

New work Maintenance Total

Regular funds...... ------1 $1, 948, 908 2 $2, 901, 959 $4, 850, 867

1 Including pending adjustment of $8,098. 2Including pending adjustment of $8,515. Condition at end of fiscal year. The existing project was about 82 percent complete at the end of the fiscal year, based on the present ap- proved estimate of cost. The physical extent of work accomplished is 1,9017188 linear feet of dikes, 1,334,296 linear feet of revetment, 29,499 linear feet of abatis, 27,493 linear feet of bank protection, 35,- 842 linear feet of retards, 30,299 linear feet of levees, 5 revetment spillways, excavation of 7,537,789 cubic yards of material in construc- tion of pilot canals, removal of 141,042 linear feet of existing struc- ture, dredge fills totaling 1,546,493 cubic yards, removal of 432,664 cubic yards of rock, removal of 82,805,096 cubic yards of material by dredging, and removal of 5,439,461 cubic yards of material in the im- provement of bank alinement. Although additional dikes and revet- ment are required to attain the project dimensions, a channel with a minimum depth of 6 to 7 feet and a minimum width of 200 feet is available throughout the navigation season, which covers approxi- mately the period from March 15 to November 30. The controlling depth throughout this section of the river on June 30, 1955, was gen- erally 8 feet at which time there was an average discharge at Kansas City, Mo., of approximately 51,000 cubic feet per second. The prac- tical draft at ordinary stages of the river is 6 feet. This section of the river has been used for commercial navigation since June 1935. The total cost of the existing project to June 30, 1955, was as follows:

New work Maintenance Total

Regular funds__ ------...... $90, 009, 907 $51, 882, 421 $141, 892, 328 Emergency Relief funds----.------1, 375, 243 133, 757 1, 509, 000 Public Works funds------.... 6, 468, 491 ------..-.-- 6, 468, 491 Total...... 97, 853, 641 52, 016,178 149, 869, 819 ,RIVERS AND HARBORS-KANSAS CITY, MO., DISTRICT 745

Cost and fnancial summary

CONSOLIDATED

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951 1 t

New work: Appropriated-...... $2,250, 000 $2, 300,000 $2,586, 000 $1,885, 000 $2,000,000 $105, 812, 358 Cost_ ------1, 613, 940 2,279, 824 3, 289,057 1, 892, 796 1, 948, 908 105, 758, 118 Maintenance: Appropriated------...... 2, 225, 000 2, 570, 000 3, 193, 700 3, 658, 000 2,973, 000 52, 512, 887 Cost- ...------2, 041, 509 2, 663, 897 3, 295, 455 3, 658, 565 2, 901, 959 52, 441, 846

1 Includes $644,374 costs of new work and $22,642 for maintenance from contributed funds. 2 Includes $7,260,103 costs of new work and $403,027 for maintenance for previous projects. Other new work data: Unobligated balance, fiscal year ending June 30, 1955-...... $377 Appropriated for succeeding fiscal year ending June 30, 1956 _ _ 2, 000, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------_------_------2, 000, 377 Estimated additional amount needed to be appropriated for com- pletion of existing project______.._..._ 14, 187, 642

3. OTHER AUTHORIZED NAVIGATION PROJECTS

I Improvement adequate for existing needs. 2 Curtailment of project recommended in H. Doc. 467, 69th Cong., 1st sess. a Project for maintenance only. 4 Operation of lock and dam placed in standby status.

4. MISSOURI RIVER BASIN, KANSAS CITY DISTRICT Location. The flood control improvements included in this project are located on and along the Missouri River and several of the princi- pal tributaries of the Missouri River and are located in the States comprising the Missouri River Basin. Existing project. The general comprehensive plan for flood con- trol and other purposes in the Missouri River Basin provides for levees along the Missouri River between Sioux City, Iowa, and the mouth, flood protection works at certain municipalities, and reser- voirs located on the main stem of the Missouri River and on the tribu- 746 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

taries for control of flood flows at the dam site. The existing project was authorized by the following flood control acts:

Acts Work authorized Documents

June 28,1938 Adopted general comprehensive plan for Missouri Flood Control Committee Doc. 1, River Basin and authorized $9,000,000 for initiation 75th Cong,, 1st Sess. and partial accomplishment. Aug. 18,1941 Modified the general comprehensive plan to include H. Doc. 842, 76th Cong., 3d sess. Harlan County Dam and reservoir on the Repub- lican River, Nebr., other supplemental flood con- trol works on the upper Republican River; and authorized $7,000,000 additional expenditure. Dec. 22,1944 Expanded the general comprehensive plan for the H. Doc. 475, 78th Cong., 2d sess.; Missouri River Basin and authorized $200,000,000 S. Doc. 191, 78th Cong., 2d sess.; additional expenditure. S. Doc. 247, 78th Cong., 2d sess. July 24,1946 Authorized an additional expenditure of $150,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. May 17,1950 Authorized an additional expenditure of $250,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. Sept. 3,1954 Expanded the general comprehensive plan for the H. Doc. 642, 81st Cong., 2d sess.; Missouri River Basin and authorized $217, 710, 000 H. Doc. 549, 81st Cong., 2d sess. additional expenditure.

Included in the comprehensive basin plan are the following projects in the Kansas City district:

ProjectEstimated Project Federal cost

Missouri River agricultural levees, Rulo to mouth ...... ------$121, 000,000 Pioneer Reservoir, Arikaree River, Colo., and Kans------120, 000, 000 Red Willow Reservoir, Red Willow Creek, Nebr...... ------112,500,000 Indianola, Republican River, Nebr----...... ------67, 275 Bartley, Republican River, Nebr..------118, 269 Harlan County Reservoir, Republican River, Nebr------45, 232, 000 Milford Reservoir, Republican River, Kans__------41,000, 000 kanopolis Reservoir, Smoky Hill River, Kans------...... ------12,297,000 Salina, Smoky Hill River, Kans.....------1,470,000 Abilene, Smoky Hill River, Kans---...... ------580,000 Manhattan, Kansas River, Kans------1,470, 000 Hubbell, Rose Creek, Nebr------12,000 Beatrice, Big Blue River, Nebr...--...------520,000 Marysville, Big Blue River, Kans ------332, 000 Tuttle Creek Reservoir, Big Blue River, Kans _------. 92, 300, 000 Topeka, Kansas River, Kans....------13, 400, 000 Lawrence, Kansas River, Kans _------2,740, 000 Perry Reservoir, Delaware River, Kans...... ------.....------17,200, 000 Merriam, Turkey Creek, Kans....------390, 000 Chillicothe Reservoir, Grand River, Mo------65,800000 Pomona Reservoir, One Hundred Ten Mile Creek, Kans------14,100,000 Melvern Reservoir, Osage (Marais des Cygnes) River, Kans------... ------.... 20,400, 000 Ottawa, Osage (Marais des Cygnes) River, Kans-.....------3,140,000 Hillsdale Reservoir, Big Bull Creek, Kans ------...... ------9,000, 000 Garnett Reservoir, Pottawatomie Creek, Kans...... ------14, 800, 000 Osawatomie, Osage (Marais des Cygnes) River, Kans...... ------700,000 Fort Scott Reservoir, Marmaton River, Kans__ .------16, 000, 000 Hackleman Corners Reservoir, Cedar Creek, Mo...... ------16, 400. 000 Stockton Reservoir, Sac River, Mo ... ------40, 800, 000 Kasinger Bluff Reservoir, Osage River, Mo------...... ------102,000,000 Pomme de Terre Reservoir, Pomme de Terre River, Mo....------26,000, 000 Richland Reservoir, Gasconade River, Mo------1 33, 300, 000 Arlington Reservoir, Gasconade River, Mo .----...------1 27, 200, 000

1 1954 estimate. Recommended modification of project. None Operations and results during fiscal year. The operations during the fiscal year, together with costs and expenditures for those projects on which plans were in preparation or on which construction had been initiated, are shown in following individual reports. FLOOD CONTROI-KANSAS CITY, MO., DISTRICT 747

Under sections 7 and 9 of Public Law 534, Flood Control Act, ap- proved December 22, 1944, the Corps of Engineers is responsible for detailed scheduling of operations of storage capacity reserved for or assigned to flood control in reservoirs constructed by the Bureau of Reclamation as well as those constructed by the Corps of Engineers. Condition at end of fiscal year. The condition of the projects dis- cussed in individual reports is given in those reports. The total cost and expenditures to June 30, 1955, exclusive of the cost and ex- penditures for projects discussed in individual reports, for special engineering studies in connection with the comprehensive plan, was $55,568.55. The cost for maintenance (scheduling of flood control reservoir operations) was $49.088.

Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: AppS6priated .--...... ------$55,569 Cost------55, 569 Maintenance: Appropriated------...... $44, 000 $35, 000 $39, 000 $57, 000 $49, 000 224, 000 Cost ------35, 782 43, 191 32, 554 63, 384 49, 088 224, 000

Notes: The allotments and costs shown above for new work cover 21 x 3113 flood control, general funds allotted to the "Republican River Basin reservoirs (Medicine Creek Reservoir), Colo., Nebr., and Kans." The allotments and costs shown above for maintenance cover 21 x 3123 flood control, general, funds allotted to "Scheduling of flood control reservoir operations."

5. MISSOURI RIVER AGRICULTURAL LEVEES, SIOUX CITY, IOWA, TO THE MOUTH (RULO, NEBR., TO MOUTH) Location. On both banks of the Missouri River from Sioux City, Iowa, to the mouth near St. Louis, Mo., a distance of approximately 760 miles. Existing project. The plan of improvement provides for a series of levee units and appurtenant works along both sides of the Missouri River from Sioux City, Iowa, to the mouth, for the protection of agricultural lands and small communities against floods. The esti- mate of cost (1955) for that portion of the project from Rulo, Nebr., to the mouth is $129,990,800, of which $121,000,000 is the Federal cost for construction, $8,990,800 is for lands and damages to be borne by local interests. The existing project was authorized by the following Flood Control Acts:

Acts Work authorized Documents

Aug. 18,1941 Levees along both sides of the river from Sioux City H. Doc. 821, 76th Cong., 3d sess. to Kansas City. Dec. 22, 1944 Extended project from Kansas City to the mouth and H. Doc. 475, 78th Cong., 2d sess.; provided for increased protection. S. Doc. 191, 78th Cong., 2d sess.; S. Doc. 247, 78th Cong., 2d sess. 748 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 Local cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended by the Flood Control Act approved Decem- ber 22, 1944, applies. Local interests have furnished rights-of-way for construction of levees in units R513-512 (secs. I and II), R500, L488, R482, L476, L448-443, R440, and L400. Local interests have also indicated their interest in the early construction of other units of the project. Operations and results during fiscal year. Unit L519-L512-L504: Design memorandum No. 1-General design memorandum and appen- dix I for section I of this unit were completed and work continued on appendixes for other sections by hired labor at a total cost during the fiscal year of $57,023.76. Unit R513-R512: Underseepage control and reseeding of levees was completed, by contract, during the fiscal year. Modification of a drainage structure, engineering and design in connection with con- struction and supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost dur- ing the fiscal year was $38,502.52. Unit R500: Reseeding of a portion of the levee was done by con- tract during the fiscal year. Engineering and design and supervision and administration in connection with the above was accomplished by hired labor during the fiscal year. The total cost during the fiscal year was $2,468.07. Unit L497: Work was continued on the design memorandum and plans and specifications by hired labor at a cost during the fiscal year of $5,685. Unit L488: Underseepage control by long berms was 92 percent complete by contract during the fiscal year. Piezometers were in- stalled, design memorandum and plans and specifications for the un- derseepage control were completed and supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost during the fiscal year was $204,278. Unit R482: Reseeding of levees was completed by contract during the fiscal year. Engineering and design and supervision and adminis- tration in connection with the above were accomplished by hired labor. The total cost during the fiscal year was $1,572. Unit L476: Underseepage control by long berms was 60 percent complete by contract during the fiscal year. Plans and specifications for the underseepage control were completed and supervision and administration of construction was accomplished by hired labor dur- ing the fiscal year. The total cost during the fiscal year was $152,599. Unit L448-L443: Underseepage control by long berms was com- pleted by contract during the fiscal year. Design memorandum and plans and specifications for the underseepage control was completed and supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost during the fiscal year was $400,221. Unit L455: Preparation of design memorandum was advanced to about 6 percent of completion by hired labor during the fiscal year at a total cost of $33,635. Unit R440: Underseepage control by long berms was completed and tie-back levees along a tributary creek were advanced to 12 percent of FLOOD CONTROIr--KANSAS CITY, MO., DISTRICT 749 completion by contract during the fiscal year. Installation of piezome- ter tubes, engineering and design and supervision and administration in connection with the above construction was accomplished by hired labor during the fiscal year. The total cost for the fiscal year was $108,784. Unit L426-L419: Preparation of design memorandum was ad- vanced to about 8 percent of completion by hired labor during the fiscal year at a total cost of $21,729. Unit L400: Plans and specifications for this unit were completed by hired labor during the fiscal year at a total cost of $11,798. General engineering on the remaining units of the project was un- derway by hired labor during the fiscal year at a cost of $19,582. The total cost during the fiscal year for the Missouri River agricultural levee project (including a pending adjustment of -$486) was $1,117,391. Condition at end of fiscal year. The existing project was about 10 percent complete at the end of the fiscal year based on the present estimated cost. Construction of the project was initiated in June 1948 with the start of construction of levees for Unit L488. During April 1952 there occurred a flood which overtopped or breached all privately constructed farm levees from Rulo, Nebr., to Kansas City, Mo., and damaged approximately 60 percent of those from Kansas City to the mouth. This flood exceeded all floods occur- ring during the past century in the reaches above Leavenworth, Kans. The only levees in the Kansas City to Rulo sction that did not fail during this April 1952 flood were the seven levee units constructed by the Corps of Engineers under the Missouri River agricultural levees project. The status of individual units of the project at the end of the fiscal year was as follows: Unit L519-L512-L504: The preparation of definite project plans and contract plans and specifications was underway. Unit R513-R512: Definite project plans and contract plans and specifications for the construction of levees have been completed. The construction of 8.6 miles of levee in section I of this unit and of 8 miles of levees in section II of this unit has been completed. The construction of 2.5 miles of levees in the Mooney drainage ditch section has been completed. Surfacing of levees and channel clear- ing is also completed. Unit R500: Definite project plans and contract plans and speci- fications for construction of levees have been completed. The con- struction of 4.1 miles of levees, including surfacing and slope protec- tion for this unit was completed. Unit L497: The preparations of definite project plans and contract plans and specifications was underway. Unit L488: Definite project plans and contract plans and speci- fications for the construction of levees have been completed. The construction, surfacing, and seeding of 11.5 miles of levees in this unit have been completed. The preparation of the design memoran- dum and plans and specifications for underseepage control was com- pleted. A contract for underseepage control by long berms was awarded and advanced to 92 percent of completion and piezometer tubes were installed. 750 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Unit R482: Work in this unit which consisted of the construction of 8.3 miles of levee has been completed. Unit L476: Definite project plans and contract plans and specifi- cations for the construction of levees has been completed. The con- struction of 6.7 miles of levees, including surfacing and slope protection has been completed. A contract for underseepage control has been awarded and advanced to 38 percent of completion. Unit L448-L443: The construction of 8.3 miles of levee to protect section I of this unit and 5.8 miles of levee to protect section II, in- cluding underseepage control, surfacing, seeding and slope and toe protection is complete. The construction of Cloverdale drain levees is complete. Unit R440: The construction of 9.6 miles of levees in this unit, in- cluding surfacing and underseepage control is complete. A contract for Doniphan Creek diversion levees was awarded and advancd to 12 percent of completion. Unit L400: Definite project plans and contract plans and specifica- tions were completed. Unit L330: A contract for engineering services in connection with surveys for design of levees is completed. Unit R471-L466-R460, L455, L435, 434.5 (bridge), L426-L419, 408.2 (bridge), L408, R395-R393, L392, L385, and R289-R272: Pre- liminary work in connection with the preparation of detailed plans was underway. The total cost of the existing project (all new work) to June 30, 1955, was $12,852,592.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated------...... $374, 900 $1, 543, 900 $319, 000 $75, 000 $350, 000 $13, 305, 150 Cost_..--- - . 2, 260, 800 536, 605 913, 975 552, 832 1, 117, 391 12, 852, 592

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 ------$177, 387 Appropriated for succeeding fiscal year ending June 30, 1956 - 660, 000, Unobligated balances available for succeeding fiscal year ending June 30, 1956______------837, 387 Estimated additional amount needed to be appropriated for completion of existing project------107, 694, 850

6. KANSAS OITYS ON MISSOURI AND KANSAS RIVERS, MO, AND KANS. Location. Kansas Citys on Missouri and Kansas Rivers in Missouri and Kansas. The municipal and industrial areas which require flood protection extend from the mouth of the Kansas River about 61/2 miles up and 91/2 miles down the Missouri River and 9 miles up the Kansas River. Existing project. The general plan of improvement contemplates protection works consisting principally of levees and floodwalls, for 13 separate project units, which are designated as follows: Argentine; Armourdale; Central Industrial; Fairfax-Jersey Creek; North Kan- FLOOD CONTROL-KANSAS CITY, MO., DISTRICT 751 sas City; East Bottoms; channel improvement, Kansas River; bridge and approach alterations, Kansas River; channel improvement, Mis- souri River; floodway improvement, Missouri River; Birmingham; Blue Valley Industrial; and Liberty Bend cutoff. The existing project was authorized by the following Flood Control Acts:

Acts Work authorized Documents

June 22, 1936 Levees and flood walls for the protection of the Kan- H. Doc. 195, 73d Cong., 2d sess. sas Citys, at an estimated construction cost not to exceed $10,000,000, estimated cost of lands and damages, $8,000,000. Dec. 22, 1944 Modified and extended the project to provide con- H. Doec. 342, 78th Cong., 1st sess. struction of cutoffs and protection for additional areas at an estimated additional cost of $8,445,000. July 24,1946 Authorized the Chief of Engineers to include neces- sary railroad bridge and approach alterations as a Federal responsibility.

Recommended modification of project. None. The estimated cost (1955) is $49,830,000 of which $44,800,000 is the Federal cost and $5,030,000 is for lands and damages to be borne by local interests. This project will be operated as part of the comprehensive plan for the Missouri River Basin and it is contemplated that, with res- ervoir control, substantially complete flood protection will be pro- vided for the Kansas Citys. The units involve construction approxi- mately as follows: Argentine unit: The original levees and floodwalls built by pri- vate interests were of sufficient height to protect the district from the design flood, but to correct inadequate design and improper materials used in constructing the levees it was originally planned to strengthen the levees, install necessary facilities for control of un- derseepage, and construct a pumping unit. Since the inadequacies of the original construction by private interests are being corrected through proper design and selection of materials in the emergency restoration necessitated by the flood of 1951, the levee work formerly contemplated under this unit no longer will be required. However, studies subsequent to the flood of 1951 indicated the necessity for con- structing protection for the approaches to the Argentine Boulevard and the West Kansas Avenue bridges. Armourdale unit: The earth levee along the left bank of the Kansas River from mile 6.7 to mile 2.9 is of sufficient heights to provide protection from the design flood. The project provides for raising the existing levee from mile 2.9 to 2.8; 1constructing a new levee river- ward of the existing flood wall from mile 2.8 to 1.7; 1 replace existing floodwall with a new floodwall from mile 1.7 to 1; construct a new levee from mile 1 to 0.7; 1 and construction of new floodwall, including the replacement of a short section of existing wall from mile 0.7 to 0.3.' The downstream end of the new wall will connect with the southern terminus of the existing Fairfax district levee. Central Industrial unit: Beginning at the south end of the Armour- Swift-Burlington Bridge over the Missouri River, mile 376.9,2 the 1 Above mouth of Kansas River. 2 Above mouth of Missouri River. 363037-55-vol. 2- 48 752 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 existing and proposed protection for the district extends upstream along the right bank of the Missouri River to the mouth of the Kansas River, mile 378.8,2 a distance of 1.9 miles, and thence upstream along the right bank of the Kansas River to mile 3.4,1 in the vicinity of the Seventh Street Bridge, a total distance of 5.3 miles. The plan of improvement consists of the construction of concrete floodwalls and earth levees to protect the portion of the unit lying in the State of Missouri, and the raising of existing structures and construction of new concrete floodwalls and earth levees to protect the portion of this unit located in the State of Kansas. Fairfax-Jersey Creek unit: About 30,900 feet of earth levee, 1,981 feet of concrete floodwalls, and 32,100 feet of bank-protection works, extending along the right bank of the Missouri River from a point immediately above the Kansas City, Kans., water and light plant (mile 385.3)2 downstream to the mouth of the Kansas River, thence along the left bank of the Kansas River to the vicinity of the inter- city viaduct (mile 0.3);1 pumping plants; and appurtenant works. Subsequent to the construction of the above work, the elevation of the design flood has been raised due to a decrease in the width of the floodway, necessitating the raising of the Fairfax-Jersey Creek flood- protection works. North Kansas City unit: Beginning at a point northwest of the Kansas City, Mo., municipal waterworks, the existing and proposed protection for the unit extends downstream along the left bank of the Missouri River for a distance of about 6.55 miles and opposite approximately Missouri River mile 375; thence north along the right bank of Rock Creek to the Wabash Railroad right-of-way, a distance of about 0.8 mile; thence northwesterly along a drainage ditch to high ground northeast of the Kansas City, Mo., municipal water- works, a distance of about 1.6 miles. The plan of improvement con- sists of raising and realinement of existing levees and a railroad em- bankment and the construction of new earth levees and concrete flood- walls to protect the city of North Kansas City, Mo., and the municipal airport and waterworks for the city of Kansas City, Mo. The total length of the proposed system is 9 miles. East Bottoms unit: Beginning at the south end of the Armour- Swift-Burlington bridge over the Missouri River, mile 376.9,2 the existing and proposed protection for the district extends downstream along the right bank of the Missouri River to the mouth of the Big Blue River, thence southwesterly along the left bank of Big Blue River to high ground. The proposed improvements will consist of levees and a floodwall and appurtenances. The plan also contem- plates necessary rectification of the Big Blue River channel near the mouth of this stream. Channel improvement, Kansas River unit: Bank-stabilization works along the right bank of the Kansas River from the Seventh Street Bridge to the Kansas City Terminal Railway bridge (mile 3.50 to mile 2.49 1); excavation of a foreshore bar along the right bank of the Kansas River, extending from the Kansas City South- ern Railroad bridge (mile 0.84)1 to the mouth; and removal of major

SAbove mouth of Kansas River. 2Above mouth of Missouri River. FLOOD CONTROT--KANSAS CITY, MO., DISTRICT 753 obstructions from the bed of the main channel of the Kansas River between the Argentine Bridge (mile 5.13)1 and the mouth. Bridge and approach alterations, Kansas River unit: In order to permit the free passage of drift during flood periods, it is contem- plated that all bridges across the Kansas River between mile 5.13 and the mouth which do not now provide adequate floodway will be raised above the design flood profile. This would involve the per- manent raising of 4 highway and 3 railroad bridges, and provision of facilities for the temporary raising during flood periods of 3 other railroad bridges. Channel improvement, Missouri River unit: The work contem- plated under this unit consists of dredging of a foreshore bar along the left bank of the Missouri River in the vicinity of mile 377.5; and of dredging the left bank where it extends riverward of the adopted channel alinement in the vicinity of mile 374.2 In addition, exacava- tion of the abandoned overbank area between the North Kansas City levee and the present channel to approximately low water elevation is contemplated. Replacement of the left-bank approach fills to the Armour-Swift-Burlington and Hannibal Bridges by approach spans is provided in the plans and is necessitated by the widening of the Kansas City reach by setting back the North Kansas City levee and dredging the abandoned overbank area. Floodway improvement, Missouri River unit: The work contem- plated under this unit consists of removing brush and timber from the area riverward of the existing Birmingham drainage district levee along the left bank of the Missouri River between mile 370 and mile 363 and of removing brush from the area riverward of the proposed East Bottoms levee along the right bank between mile 373.5 and mile 367.8.2 Birmingham unit: In order to provide protection to the Birming- ham district, various upstream sections of the Birmingham levee, between mile 371.7 and mile 365.5,2 will be raised by the addition of rolled fill and downstream sections will be strengthened. Blue Valley Industrial unit: The work contemplated under this unit consists of the construction of levees and floodwalls at approxi- mately present Big Blue River mile 5.4 to provide flood protection for a section of the Big Blue River Valley. Liberty Bend Cutoff: The work under this unit consists of the con- struction of a main cutoff channel beginning at mile 363.7 and ex- tending downstream to mile 358.5; 2 a second cutoff channel from mile 358.5 to mile 357; 2 and a new highway bridge where the main cutoff channel intersects U. S. Highway No. 71 (bypass), which at present crosses the Missouri River north of the proposed cutoff at mile 361.2 Local cooperation. The necessary assurances of cooperation by local interests with respect to the Flood Control Act of June 22, 1936, were approved by the Secretary of War as follows: Argentine; Armourdale; bridge and approach alterations, Kansas River; Central Industrial (Kansas section); channel improvement,

' Above mouth of Kansas River. 2 Above mouth of Missouri River. 754 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 Kansas River; and Fairfax-Jersey Creek units, approved July 6, 1938. Central Industrial (Missouri section) and East Bottoms units, approved March 22, 1941. North Kansas City unit, approved June 17, and June 20, 1941. Birmingham unit, approved December 11, 1945. New assurances of cooperation by local interests in compliance with the further provisions of the Flood Control Act approved December 22, 1944, were approved by the Secretary of the Army on April 23, 1946. Rights-of-way for the Central Industrial; channel improve- ment, Kansas River; channel improvement, Missouri River; Fairfax- Jersey Creek; East Bottoms; Armourdale; and North Kansas City units of the projects have been furnished. Local interests have contributed to a total of $619,66'5 for work desired, but not required, to provide the protection authorized under the project, as follows: Unit Amount Armourdale ------$19, 950, Birmingham------3,500 Central Industrial------9, 150 East Bottoms------206, 811 Fairfax-Jersey Creek ------157, 940 North Kansas City------222, 314 Total------619,665 Operations and results during the fiscal year. Operations under this project consisted of the following: Argentine unit: Gating outlet structures was completed, by con- tract, during the fiscal year. Preparation of "as-built" drawings, general engineering studies, and supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost during the fiscal year for this unit was $3,033. Armourdale: Osage Avenue pumping plant was completed, by con- tract, during the fiscal year, and a contract was negotiated with the sponsors to construct the protection for the downstream portion of the unit but no construction was accomplished. "As-built" drawings of Osage Avenue pumping plant and general engineering studies was accomplished by hired labor during the fiscal year. The total cost during the fiscal year for this unit was $9,627. Birmingham: A contract was awarded for the completion of the levees for this unit and construction advanced to 99 percent of com- pletion during the fiscal year. Engineering and design in connection with the above construction, general engineering studies and super- vision and administration of construction was accomplished by hired labor during the fiscal year. The total cost during the fiscal year for this unit was $424,709. Blue Valley Industrial: General engineering studies were accom- plished by hired labor at a cost during the fiscal year of $190. Bridge and approach alterations: The raising of the East Kansas Avenue bridge and the alteration of the Missouri Pacific Number 72 bridge was completed, by contract, during the fiscal year. General engineering studies and supervision and administration of construc- FLOOD CONTROL-KANSAS CITY, MO., DISTRICT 755 tion was accomplished by hired labor during the fiscal year. The total cost during the fiscal year for this unit was $8,057. Central Industrial: Construction, by contract, consisted of comple- tion of the gating of the Turkey Creek sewer and the advancement to 86 percent of completion of the gating of the outlets of Santa Fe, the Ohio and the Broadway pumping plants during the fiscal year. En- gineering and design in connection with the gating of outlets, gen- eral engineering studies and supervision and administration of con- struction was accomplished by hired labor during the fiscal year. The total cost for this unit during the fiscal year was $201,737. Channel improvement, Missouri River: Construction, by contract, during the fiscal year, consisted of completion of the alteration of the A. S. B. and the Hannibal bridges and the stabilization of the levees at the bridges. General engineering studies and supervision and ad- ministration of construction was accomplished by hired labor during the fiscal year. The total cost for this unit during the fiscal year was $400,895. East Bottoms: Construction, by contract, during the fiscal year, consisted of the completion of levee slope and toe protection of the Paseo bridge. Engineering and design, general engineering studies and supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost for this unit during the fiscal year was $78,414. Fairfax-Jersey Creek: Construction, by contract, during the fiscal year for this unit consisted of the modification of 5 pumping plants, the construction of 4 new pumping plants and completion of the downstream portion of levees and floodwalls. Engineering and de- sign, general engineering studies and supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost during the fiscal year for this unit was $766,392. North Kansas City: Construction, by contract, during the fiscal year for this unit consisted of completion of levees and pumping plants and the gating of four drainage outlets. Engineering and de-i sign, general engineering studies, supervision and administration of construction was accomplished by hired labor during the fiscal year. The total cost during the fiscal year for this unit was $52,481. The total cost of this project during the fiscal year, exclusive of con- tributed funds in the amount of $3,500 and including $23 for comple- tion of real estate records for the Liberty Bend Cutoff unit and a pending adjustment of $4,049 was $1,949,607. Condition at end of fiscal year. The existing project was about 81 percent complete at the end of the fiscal year, based on the presently authorized estimated cost. Construction of the project was started in April 1940 with the initiation of construction of levees and inci- dental work in the Fairfax-Jersey Creek unit of the project. Argentine unit: The inadequacies of the original construction of levees were corrected through proper design and selection of materials in the emergency restoration following the 1951 flood. The Santa Fe pumping plant was restored under the emergency program. Sur- facing of levees and gating of drainage outlets is complete. Armourdale unit: The construction of approximately 7,300 linear feet of levee, about 4,400 linear feet of floodwall and the Osage Avenue 756 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 pumping plant to protect this unit from Kansas River mile 2.84 downstream to mile 0.30 was completed. Surfacing of levees and gating of outlet structures for the upstream portion is complete. A contract has been negotiated with local interests whereby the Federal Government will contribute not to exceed $2,750,000 to the cost of an alternate plan of flood protection to be constructed by local interests in the lower Armourdale area. Birmingham unit: Raising and strengthening the levees upstream from station 250+00 in the vicinity of Missouri River mile 365.5 have been completed. The contract for the construction of the down- stream portion of the levees and the underseepage control for the upstream portion is 99 percent complete. Blue Valley industrial unit: Detailed project plans and interior drainage studies are underway. Bridge and approach alterations: The James Street, Central Ave- nue, Kansas City Southern Railway, Kansas City Stockyards Com- pany, East Kansas Avenue and the Missouri Pacific Railroad bridge No. 72 have been raised. Lifting facilities have been provided for the Chicago, Rock Island & Pacific and the Union Pacific Railroad bridges. Planning in connection with the raising of all except the Kansas City Terminal Railroad bridge have been substantially completed. Central industrial unit-Missouri section: The floodwalls, levees, and the pumping plants to protect this section of the central indus- trial unit have been completed. The improvements to protect this section consist of 7,812 linear feet of floodwalls and appurtenances, 429 linear feet of earth levee to full grade and section, 429 linear feet of revetment of levee slope, a new pumping plant, and an addition to another pumping plant. Central industrial unit-Kansas 'section: The construction of levees, floodwalls, and pumping plants to protect this section of the unit have been completed. Bank and toe protection is complete. The improvements to protect this section consist of approximately 9,266 linear feet of levee, 772 linear feet of new floodwall, raising 8,586 linear feet of existing floodwall, and underseepage control system, two pump- ing plants, and an addition to another pumping plant. Channel improvement, Kansas River unit: The stabilization of the right bank of the Kansas River from the Seventh Street Bridge to the Kansas City Terminal Railway bridge and the removal of a fore- shore bar at the mouth of the Kansas River have been completed. This work consisted of the excavation and disposition of 361,013 cubic yards of material in connection with the removal of the fore- shore bar, and removal of 14,255 cubic yards of objectionable material, placement of 34,047 cubic yards of earth fill, 25,426 tons of stone, and 4,149 squares of bank paving in connection with bank stabilization. Removal of obstructions was accomplished by hired labor. Channel improvement, Missouri River unit: Construction of part I of this unit, which consists of 2,106,630 cubic yards of random and impervious fill, 318 square yards of surfacing, 195,290 tons of stone for filter blanket, riprap, rockfill toe and rockfill dikes, 237,220 pounds FLOOD CONTROL--KANSAS CITY, MO., DISTRICT 757 of reinforcing steel, 16,845 pounds of miscellaneous metals, 270 linear feet of fencing is complete. Extensions of the Hannibal and A. S. B. bridges are complete. Channel excavation by contract is complete. Construction by contract of bank stabilization, part II, is complete. This work consisted of excavation of 337,999 cubic yards of material, removal of 771 cubic yards of obstruction and wood piling, placement of 36,203 tons of riprap and rockfill toe. East Bottoms unit: The construction of about 46,200 linear feet of levee and 1,750 linear feet of floodwall and appurtenances was initiated in April 1948 and has been completed. The construction of six pumping plants is complete. Surfacing of levees and slope and toe protection has been completed. Fairfax-Jersey Creek unit: The original levees and floodwalls for this unit were completed in May and June 1941. Three pumping plants had been completed prior to this and two were constructed subsequent to completion of leeves and floodwalls. Four additional pumping plants have been constructed and the five previously con- structed have been modified concurrently with the raising of the original levees. An underseepage control system and the Jersey Creek sewer are complete. Completed work included the construction of 31,348 linear feet of earth levees, a levee drainage system, approxi- mately 14,974 squares of foundation and toe-protection mattress, 30,881 squares of revetment paving, 965 linear feet of steel sheet-pile wall and 4,134 linear feet of floodwalls. Liberty Bend Cutoff unit: The construction of a new highway bridge, excavation of 2 cutoffs, relocation of 2 pipelines, construction of levees along both banks of the upper cutoff and the construction of approximately 5,000 linear feet of revetment along the left bank of the upper cutoff have been completed. The construction of 9,994 linear feet of revetment to divert the river through the new channel and protect the right bank of the lower cutoff, and an extension to the Liberty, Mo., sewer system have also been completed. North Kansas City unit-airport section: The airport section is that portion of the North Kansas City unit lying west of and up- stream from the Hannibal Bridge on the left bank of the Missouri River. Approximately 20,200 linear feet of levees, including stop- log and sandbag gaps and appurtenances, 19,800 linear feet of levee slope and bank protection, 552 linear feet of woodwall, and 160 linear feet of retaining wall were completed in October 1947. The installation of underseepage wells, installation of additional pump- ing capacity in one pumping plant, and installation of a collector system for the underseepage control system have also been completed. North Kansas City unit-lower section: The lower section of the North Kansas City unit is that portion of the unit lying east of and downstream from the Hannibal Bridge. Raising and relocating exist- ing levees and construction of three new pumping plants have been completed. The total cost, all new work, of the existing project to June 30, 1955, including a pending adjustment of $811 was $35,555,614; exclusive of contributed funds of $619,665. 758 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and flnancial summary CONSOLIDATED

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated------..$6, 775,237 $8,887, 250 -$418, 000 -$2, 686 $3,500 $39,168, 765 Cost------2,237, 424 3,394, 588 3,667, 544 2,613, 060 1,953,107 36,175, 279

'Other new work data: Unobligated balance, fiscal year ending June 30, 1955------_ $608, 152 Unobligated balances available for succeeding fiscal year ending June 30, 1956------_ 1,008, 152 Estimated additional amount needed to be appropriated for com- pletion of existing project------6, 250, 900

7. HARLAN COUNTY RESERVOIR, MISSOURI RIVER BASIN, NEBR. Location. The dam site for the Harlan County Reservoir is located on the main stem of the Republican River approximately 235 miles above the confluence of the stream with the Smoky Hill River. The site is located in Harlan County, Nebr., about 3 miles east of Repub- lican City, Nebr., and 13 miles west of Franklin, Nebr. Existing project. An earthfill dam, with a height of about 106 feet above the streambed and a total length of 11,950 feet, including a gate controlled concrete gravity-type spillway section located near the center of the dam. The reservoir provides storage capacity of 850,000 acre-feet, of which 500,000 acre-feet of capacity is for flood control and 350,000 acre-feet for irrigation and sedimentation allow- ance. The reservoir controls the runoff from approximately 83 percent of the drainage area of the Republican River and affords complete control for all floods of record. The Harlan County Reservoir will be operated to provide protection from floods on the Republican River to small communities and agri- cultural land lying within the flood plain below the dam and in combination with proposed reservoirs to be located on other major tributaries of the Kansas River to reduce flood heights at the Kansas Citys. The reservoir will also be operated to provide storage for the irrigation of 86,700 acres of land below the dam. This project is one unit of the general comprehensive plan for flood control and other purposes in the Missouri River Basin authorized by the Flood Control Act, approved June 28, 1938 (Flood Control Com- mittee Doc. 1, 75th Cong., 1st sess.), as modified by the Flood Control Act, approved August 18, 1941 (H. Doc. 842, 76th Cong., 3d sess.), to include this project, and expanded by the Flood Control Act, ap- proved December 22, 1944 (H. Doc. 475, and S. Does. 191 and 247, 78th Cong., 2d sess.). The estimated cost (1955) is $45,232,000. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during the fiscal year. New work: The construction of access roads within the reservoir area, by contract, was completed during the fiscal year. All work in connection with the FLOOD CONTROL--KANSAS CITY, MO., DISTRICT 759 relocation of sewage disposal facilities at Orleans, Nebr., was accom- plished by contract. The construction of townsite and public use facilities, consisting principally of a permanent warehouse, and shelter house and water supply for the south bluff, was initiated, by contract, and was substantially completed during the fiscal year. Surplus materials consisting of coarse aggregate and riprap were purchased for the project. Construction, by hired labor, during the fiscal year, consisted of the following: drainage of residual pools for malaria control, fabrication and installation of irrigation intake trash racks and pier access guards, alteration of Franklin Canal sluice gates, installation of outlet for low flow regulation, construction of Method- ist Creek area access road, improvement of South Bluff Beach, includ- ing access road to beach; construction of parking areas, road and walks adjacent to the Hi-Point Shelter; construction of entrance markers and wooden information signs, installation of standby lighting system on radio tower, connecting emergency lighting and power service to distribution system for administrative and residential areas, purchase of equipment for telemark gages, and other miscellaneous items. En- gineering and design in connection with the above work was accom- plished by hired labor. The total cost for new work during the fiscal year (including pending adjustment of $9,920) was $239,783. Maintenance: This work consisted of operation, maintenance, and rehabilitation of the project, by hired labor and contract, at a cost during the fiscal year (including pending adjustment of $3,304) of $123,886. The total cost for the fiscal year was $363,669 ($239,783 for new work and $123,886 for maintenance). Condition at end of fiscal year. Construction of the project was initiated in August 1946. The project was over 99 percent complete at the end of the fiscal year. Construction of the embankment and spillway is completed. This work consists primarily of the excavation of 16,795,291 cubic yards of material, the placing of 9,948,186 cubic yards of impervious fill, 431,276 cubic yards of random fill, 1,236,130 cubic yards of pervious fill, and 1,536,114 cubic yards of berm fill in the embankment and levees, and placement of 445,484 cubic yards of concrete, 177 linear feet of clay pipe, 4,030 gallons of asphalt, and 4,295,606 pounds of reinforcing steel and 4,188,392 pounds of miscellaneous metals in the spillway. Temporary bridges constructed across the Republican River and the spillway approach channel have been removed. Complete relocations consist of the following: 32 miles of railroad, 48 miles of Federal and State highways, county roads, cemeteries, rural power and gaslines and electrical distribution facilities, Republican City and a portion of Alma, Nebr., and sewage disposal facilities at Orleans, Nebr. Re- moval of abandoned railroad line has been completed. The con- struction of access roads within the reservoir area has been com- pleted. Clearing of the reservoir area has been completed. The acquisition of 31,766 acres of land for the dam and reservoir and for the relocation of railroad lines and county roads has been completed. The procurement of a standby generator, construction of two permanent residences, and an administration building have been 760 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

completed. The construction of an access road and facilities for health and safety are complete. The total cost of the existing project to June 30, 1955, was $45,- 496,244 ($45,230,902 for new work, including materials valued at $24,198 that were received without charge to project funds, and $265,342 for maintenance).

Cost and ftnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated----.... $15, 475, 575 -$215,975 -$276, 000 -$373, 000 -$40, 000 $45, 228,000 Cost------...... 7,876,938 4,737, 607 1,464, 592 88,044 239,783 145,230,902 Maintenance: Appropriated------...... ------50, 000 110,000 105,100 265, 100 Cost....------...... ------34, 295 107,161 123, 886 2 265, 342

1 Includes cost of materials furnished without cost valued at $24,198. 2 Includes $242 cost for retroactive pay increase. Other new work data: Unobligated balance, fiscal year ending June 30, 1955------$18, 295 Unobligated balances available for succeeding fiscal year ending June 30, 1956------18, 295

8. KANOPOLIS RESERVOIR, MISSOURI RIVER BASIN, KANS. Location. The Kanopolis Dam site is located on the Smoky Hill River about 19 miles west and 16 miles south of Salina, Kans., and is approximately 205 river miles above the mouth of the stream. Existing project. An earthfill dam, with a height of about 131 feet above the streambed and a total length of 15,400 feet, including 4,300 feet of dike section on the left abutment and 2,600 feet of dike section on the right abutment. The reservoir provides storage capacity of 450,000 acre-feet, of which 400,000 acre-feet of capacity is for flood control and 50,000 acre-feet for recreation and streamflow regulation. The outlet works and spillway are located in the right abutment. The reservoir will control approximately 95 percent of the drainage area of the Smoky Hill River above Salina, Kans. The Kanopolis Reservoir will be operated in combination with pro- posed reservoirs to be located on other major tributaries of the Kansas River. The primary purpose of the project is flood control for mu- nicipal and agricultural areas along the Smoky Hill and Kansas Rivers, with incidental benefits in reducing Missouri and Mississippi River flood stages. This project is one unit of the general comprehensive plan for flood control and other purposes in the Missouri River Basin authorized by the Flood Control Act approved June 28, 1938 (Flood Control Com- mittee Doc. 1, 75th Cong., 1st sess.) as modified by the Flood Control Act of August 18, 1941, and expanded by the Flood Control Act ap- proved December 22, 1944 (H. Doc. 475, and S. Docs. 191 and 247, 78th Cong., 2d sess.). The estimated cost (1955) is $12,297,000. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. FLOOD CONTROr--KANSAS CITY, MO., DISTRICT 761

Operations and results during fiscal year. New work: Stabilization of roads, stage 2, was completed during the fiscal year by contract. Construction by hired labor, during the fiscal year, consisted of the following: construction of service road on the downstream berm and standby lighting system on radio tower; purchase of equipment for telemark gage, and other miscellaneous items. Engineering and design in connection with the above work was accomplished by hired labor. The total cost for new work during the fiscal year (including pending adjustment of $381) was $35,287. Maintenance: This work consisted of the operation of the project and maintenance and rehabilitation of the project, by hired labor, and initiation by contract of road stabilization, at a cost during the fiscal year (including pending adjustment of $668) of $97,757. The total cost for the fiscal year was $133,044 ($35,287 for new work and $97,757 for maintenance). Condition at end of fiscal year. Construction of the project was initiated in June 1940. The project was over 99 percent complete at the end of the fiscal year, the dam and spillway being completed and ready for use in May 1948. The acquisition of easements at the dam site, and land for the dam site and reservoir area, has been completed. The relocation of roads has been completed. Construction of the diversion works has been completed. Construction of the diversion works involved the excavation of 248,955 cubic yards of material and the placement of 17,791 cubic yards of backfills and embankment, 2,061,285 pounds of reinforcement steel, 1,270,448 pounds of steel brac- ing, and 22,158 cubic yards of concrete. Construction of the dam and excavation of the spillway involved the excavation of 19,725,320 cubic yards of material, the placement of 2,067,368 cubic yards of pervious fill, 5,302,322 cubic yards of random fill; 4,664,181 cubic yards of im- pervious fill, 2,072,696 cubic yards of fill in the upstream blanket, 1,025,196 cubic yards of fill in the downstream berm of the embank- ment, 239,575 cubic yards of sand and gravel filter and riprap on the upstream slope of the embankment, the placement of 899,856 pounds of reinforcement steel and bracing, and 10,060 cubic yards of concrete in connection with construction of a sill in the spillway and drainage gutters on the downstream slope of the embankment, and spot sodding and mulching 175 acres on the downstream slope of the embankment. The installation of piezometer gages is complete. The temporary Government field office, garage, warehouse, temporary residences, and other miscellaneous buildings have been completed. The administra- tion building, permanent residence, shelter house, and comfort station are complete. The installation of a standby generator and construc- tion of other miscellaneous facilities, such as sedimentation and de- gradation ranges, access roads, fencing, landscaping, forestation, planting, boat ramps, and other public use facilities are complete. The stabilization of the surface of major access roads and the con- struction of a service road on the downstream berm are complete. The total cost of the existing project to June 30, 1955, was $12,826,- 157 ($12,288,030 for new work, excluding.materials valued at $7,885, that were received without charge to project funds and $538,127 for maintenance). 762 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal'years 1951 1952 1953 1954 1955 priorto1951

New work: Appropriated-----...... 1 -$70, 000 $35, 000 $239, 500 -$50, 500 ....------. $12, 297, 000 Cost------126, 493 151, 712 68, 124 126,059 $35, 287 2 12, 288, 030 Maintenance: Appropriated....------.. 82, 500 79, 000 90, 000 93, 000 91, 000 542, 500 Cost------86, 135 77, 332 83, 909 89, 636 97, 757 538, 127

1 Funds in the amount of $70,000 of a total of $270,000 previously revoked were retained by OC E. 2 Includes costs of materials furnished without charge in amount of $7,885. Other new work data: Unobligated balance, fiscal year ending June 30, 1955------$16, 855 Unobligated balances for succeeding fiscal year ending June 30, 1956_ 16, 855

9. TUTTLE OREEK RESERVOIR, MISSOURI RIVER BASIN, KANS. Location. The proposed dam site for the Tuttle Creek Reservoir is located on the main stem of the Big Blue River, approximately 12 miles above the mouth of the stream in Riley and Pottawatomie Counties, Kans. The site is about 12 miles northwest of Manhattan, Kans. Existing project. A preliminary plan of this project provides for a dam approximately 7,200 feet long to be constructed approximately 135 feet high. This project is one unit of the general comprehensive plan for flood control and other purposes in the Missouri River Basin authorized by the Flood Control Act approved June 28, 1938 (Flood Control Committee Doc. 1, 75th Cong., 1st sess.), as modified by the Flood Control Act approved August 18, 1941, and expanded by the Flood Control Act approved December 22, 1944 (H. Doc. 475, and S. Docs. 191 and 247, 78th Cong., 2d sess.). The estimated cost (1955) is $92,300,000. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. Resettlement reimburse- ments in connection with land acquisition, land management, reservoir area maintenance and engineering and design for future construction was accomplished by hired labor during the fiscal year at a cost, in- cluding a pending adjustment of $8,373, of $113,062. Condition at end of fiscal year. Construction of the project was initiated on October 7, 1952, and construction of the outlet works conduits and the first stage embankment and spillway excavation was started. The acquisition of 4,402 acres of land has been completed. Con- struction of temporary bridge and administrative facilities and park- ing areas, and installation of radio facilities have been completed. Work in connection with construction of the outlet works conduit and first stage embankment and spillway excavation consisted of placement of 1,446,106 cubic yards of embankment; excavation of 1,793,329 cubic yards of material for the spillway and outlet works; and placement of 17,355 cubic yards of concrete, 1,208,386 pounds of reinforcement steel, and placement of 2,114 cubic yards of riprap. FLOOD CONTROL---KANSAS CITY, MO., DISTRICT 763

Work at the site was suspended in December 1953 due to nonappro- priation of additional funds. The total cost of the existing project, all new work, at the end of the fiscal year, including a pending adjustment of $8,185, was $5,035,697.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated....------$561, 395 $4, 975,000 -$615, 700 -- $5, 133, 780 Cost------366, 910 3, 169, 019 1, 154, 759 $113, 062 5, 035, 697

Other new work data: Unobligated balance, fiscal year ending June 30, 1955------$98, 083 Appropriated for succeeding fiscal year ending June 30, 1956 __ 7, 500, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956 ------7, 598, 083 Estimated additional amount needed to be appropriated for completion of existing project_------79, 666, 200

10. TOPEKA, KANSAS RIVER, KANS. Location. This project is located on the right and left banks of Kansas River at Topeka, Kans. Existing project. The plan of improvement provides for seven separate project units, as follows: Auburndale unit: Construction contemplated for this unit consists of 1.4 miles of levee, averaging 12 foot in height, along the right bank of the Kansas River between the waterworks levee and the upstream end of the present levee, diversion of Ward Creek to enter the Kansas River at approximate river mile 88, a pumping plant and appurtenant drainage facilities. Bridge alterations unit: Construction contemplated for this unit consists of the removal of a highway bridge and alterations of two railroad bridges over the Kansas River and the adjustment of the approaches. Channel and floodway improvement unit: Construction contem- plated for this unit consists of clearing and excavating at critical points in the channel of the Kansas River from miles 82 to 86 and necessary bank protection. North Topeka unit: Construction contemplated for this unit con- sists of levees, floodwalls, and appurtenances along the left bank of the Kansas River from approximate mile 88.8 to approximate mile 81.3 and 4 pumping plants to provide interior drainage. Oakland unit: Construction contemplated for this unit consists of a short section of floodwall, approximately 8 miles of levee averaging from 5 to 15 feet in height and appurtenances extending from the South Topeka unit downstream along the right bank of the Kansas River to the mouth of Shunganunga Creek thence upstream along the creek to Banner Street. Soldier Creek unit: Construction contemplated for this unit consists of realinement and straightening of the channel of Soldier Creek with 764 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 955 the relocation of the mouth of that creek so as to enter the Kansas River via the channel of Indian Creek, including the necessary levees; on each side with appurtenant drainage facilities and the necessary alteration of existing facilities. South Topeka unit: Under the previous authorization, levees and floodwalls were constructed which provides protection to the municipal waterworks extending from approximate river mile 88.0 to 88.3. Int addition, a short floodwall and levee were constructed along the right: bank from approximate river mile 84.8 to 86.2. In addition to the. work accomplished under a previous authorization, construction con- templated for this unit consists of a pumping plant, drainage facilities,. modification of railroad bridge approaches and a stop log gap. The protection authorized by the Flood Control Act approved June 22, 1936 (H. Doc. 195, 73d Cong., 2d sess.), was modified and expanded .by the Flood Control Act approved September 3, 1954 (H. Doc. 642, 81st Cong., 2d sess.). The estimated Federal cost of construction of the expanded plan (1955) is $13,400,000 and the estimated non-Federal costs of lands and damages is $5,200,000 to be borne by local interests. Recommended modification of project. None. Local cooperation. The conditions of local cooperation have been fully complied with as pertains to the completed portion of the South Topeka unit. Initiation of work in addition to that already constructed was postponed indefinitely in February 1940 after a suit was brought to enjoin the North Topeka flood protection works. The city of Topeka has furnished certified copies of a court order dismissing the litigation that resulted in the curtailment of construc- tion of the North Topeka unit of the project in February 1940 after- a suit was brought against the city of Topeka and others to enjoin construction of the North Topeka flood protection works. Acquisi- tion proceedings with respect to rights-of-way for the North Topeka unit were essentially completed by local interests prior to curtailment of the project. Local interests have indicated an intense interest in early construction of the project. The city of Topeka has contributed to the United States a net sum of $7,659.31 to defray the cost of incidental features of construction at the city waterworks, desired by the city but not required for adequate flood protection. Operationsand results during fiscal year. None. Condition at end of fiscal year. The expanded project was approxi- mately 6 percent complete at the end of the fiscal year. The work- accomplished consists of the removal of objectionable material and placing of 174,569 cubic yards of earthfill in a levee; construction of 2,016 linear feet of concrete floodwall, 6,421 linear feet of bank paving,. 2,600 linear feet of waterworks protection, 3 protection enclosures at the waterworks, 1 flood gate, 9 sewer outlet extensions, seeding of levees and appurtenant features. The total cost of the project, all new work, at the end of the fiscal year was $755,510, including $7,659 contributed funds. FLOOD CONTROL--KANSAS CITY, MO., DISTRICT 765

Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated------...... $70,000 -$50, 000 -$10, 300 -$19 1 $755, 510 Cost---- . .. __...... ---7,933 1, 722 26 ------. 1755, 510

1Includes $7,659 contributed funds. Other new work data: Appropriated for succeeding fiscal year ending June 30, 1956 - $60, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------60, 000 Estimated additional amount needed to be appropriated for completion of existing project_ - ______------12, 592, 149

11. CHARITON RIVER, MO. Location. The Chariton River rises near Osceola in south central Iowa and flows in easterly and southeasterly directions approximately 140 miles to the Iowa-Missouri State line, thence south approximately 138 miles to its confluence with the Missouri River about 7 miles above Glasgow, Mo. The drainage basin of the Chariton River is approx- imately 150 miles long and 25 miles wide. Existing project. The plan of improvement in general contem- plates drainage and protection works consisting principally of the construction of levees, clearing and enlarging of the river channel, and the construction of cutoffs and drainage ditches for three project units, which are designated as follows: Chariton County unit, Macon- Adair Counties unit, and Reinhart Ranch Channel cutoff unit. The existing project was authorized by the Flood Control Act approved December 22, 1944 (H. Dec. 628, 78th Cong., 2d sess.). The estimated cost of the project, revised in 1955, is $3,840,000, of which $3,580,000 is Federal cost for construction and $260,000 is the cost of lands and damages to be borne by local interests. The units involve construction approximately as follows: Chariton County unit: The plan of improvement provides for cut- offs, clearing, and enlarginlg the existing channel of the Chariton River and construction of tieback levees along both banks of this river. Macon-Adair Counties and Reinhart Ranch units: The plan of im- provement provides for cutoffs and clearing and enlarging the exist- ing channel of the Chariton River. Local cooperation. All rights-of-way for construction of channel improvement works have been furnished. Rights-of-way for levee construction are being obtained. Operations and results during the fiscal year. Design studies in connection with construction of tieback levees along the new channel of the Chariton River near the mouth were accomplished by hired labor during the fiscal year. The total cost during the fiscal year, including a pending adjustment of -$180, was $21,045. Condition at end of fiscal year. Construction of the project was initiated in February 1948. The project was 32 percent complete at 766 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 the end of the fiscal year based on the present approved working esti- mate. The construction of cutoffs, enlarging, and clearing the Chari- ton River channel from mile 13.6 to the mouth and the construction of revetment and bank protection at the mouth was completed. The -construction of cutoffs, enlarging, and clearing of the Chariton River channel from mile 13.6 to 19.9 in upper Chariton County unit was completed. The construction of ditches, cutoffs, and enlarging and clearing of the Chariton River channel in the Macon-Adair Counties .and Reinhart Ranch units was completed. Engineering and design for construction of tieback levees along the new channel near the mouth was underway. The total cost, all new work, of the existing project to June 30, 1955, including a pending adjustment of -$45, was $1,120,982. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated------_ -$428, 000 $111,000 ------$6, 588 -$21, 500 $1, 124, 912 Cost------129, 640 255, 908 $66, 281 13, 524 21, 045 1,120, 981

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 ----- $3, 931 Unobligated balances available for succeeding fiscal year ending June 30, 1956 ------3, 931 Estimated additional amount needed to be appropriated for com- pletion of existing project ------2, 455, 000

12. POMME DE TERRE RESERVOIR, MISSOURI RIVER BASIN, MO. Location. The proposed dam site for the Pomme de Terre Res- ervoir is located on the main stem of the Pomme de Terre River, approximately 38 miles above the mouth of the stream in Hickory ,County, Mo., the reservoir extending upstream into Polk County, Mo. The site is about 3 miles south of Hermitage, Mo., and 37 miles east and north of Lebanon, Mo. Existing project. The preliminary plan of this project provides for a dam about 4,380-feet long to be constructed to an elevation 155-feet .above the river bed with provision for power-generating facilities. This project is one unit of the general comprehensive plan for flood control and other purposes in the Missouri River Basin, authorized by the Flood Control Act approved June 28, 1948 (Flood Control Com- mittee Doc. 1, 75th 'Cong., 1st sess.), as modified by the Flood Control Acts, approved December 22, 1944, and September 3, 1954, (H. Doc. 475, and S. Does. 191 and 247, 78th Cong., 2d sess. and H. Doc. 549, 81st Cong., 2d sess.). The estimated cost (1955) is $18,700,000 for the flood control project and $7,300,000 for the power plant features of the project. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. Advance engineering and design in connection with preparation of contract plans and speci- fications for the initial contracts for construction of the project was FLOOD CONTROI-KANSAS CITY, MO., DISTRICT 767

continued, by hired labor, at a cost during the fiscal year including pending adjustment of -$119, of $27,920. Condition at end of fiscal year. Advance engineering and de- sign for preparation of plans for the initial contracts for construc- tion of the project is complete. The total cost of the existing project, all new work, at the end of the fiscal year including a pending adjustment of $3, was $522,453. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated, ...- $130, 000 $307, 300 -$140, 000 -$7, 000 - , $522, 502 Cost______36, 913 94, 335 66, 556 70, 127 $27, 920 522, 453

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 $49 Unobligated balances available for succeeding fiscal year ending June 30,1956 ______- __ ------49 Estimated additional amount needed to be appropriated for completion of existing project------___ 25, 477, 500

13. OTHER AUTHORIZED FLOOD CONTROL PROJECTS

For last Cost to June 30, 1955 fullreport - Estimated Name of project seefu IAnnual re ort (amount Operation required to ertOperation required to Report Construction and main- complete tenance

Abilene, Smoky Hill River, Kans . _...... (2) $580, 000 Arlington Reservoir, Mo __ 1948 $8, 651- 3 27, 191, 349 Bartley, Mo. River Basin, Nebr .- -- _ 1953 118, 269 ------(1) Beatrice, Big Blue River, Nebr_ - (2) ...... --- . . .--...... 520, 000 Chillicothe Reservoir, Grand River, Mo .-..... (4) *65,800, 000 Fort Scott Reservoir, Marmaton R., Kans .---- (2) ------...------16, 000, 000 Garnett Reservoir, Pottawatomie Creek, Kans___ (2) ------...------14, 800, 000 Hackleman Corners Reservoir, Cedar Creek, Mo_ (2) ------...------16, 400, 000 ------...------Hillsdale Reservoir, Big Bull Creek, Kans --- (2) 9, 000, 000 ------...------Hubbell, Rose Creek, Nebr - . - _ -- (2) 12, 000 Indianola, Nebr_ ... _ -- _ _ 1950 67, 275- - - (1) Kasinger Bluffs, Reservoir, Osage River, Mo .... (2) ...... 102, 000, 000 Lawrence, Kansas River, Kans_ -- (2) ------...------. 2, 740,000 Manhattan, Kansas River, Kans___ - - (2) 1, 470, 000 Marysville, Big Blue River, Kans___ (2) 332, 000 Melvern Reservoir, Osage (Marais des Cygnes) River, Kans_ _- - (2) 20, 400, 000 Merriam, Turkey Creek, Kans _ (2) 390, 000 Milford Reservoir Republican River, Kans -- (2) 41, 000, 000 Mystic, Walnut Creek, Iowa _ (2) 50, 000 Osawatomie, Osage (Marais des Cygnes) River, Kans - (2) 700, 000 Ottawa, Osage (Marais des Cygnes) River, Kans_ (2) 3,140,000 Perry, Reservoir, Delaware River, Kans ...... (2) 17, 200, 000 Pioneer Reservoir, Missouri River Basin, Kans___ 1952 95, 692 * * 19, 904, 308 Pomona Reservoir, One Hundred Ten Mile Creek, Kans _ ------(2) 14, 100, 000 Rathbun Reservoir, Chariton River, Iowa ------(2) ------...------21, 000, 000 - ---8,548------Red Willow Reservoir, Red Willow Creek, Nebr_ (3) *12,500, 000 Richland Reservoir, Mo__ ...... 1948 8, 548 ...... * 3 33, 291, 452 Salina, Smoky Hill River, Kans_ (2) ...... 1,470, 000 Stockton Reservoir, Sac River, Mo ..--. - (2) ...... --...... 40,800, 000

*1954 estimate. 1 Complete. 2 Authorized in Fiscal year 1955. 3 Deferred for restudy. 4 Inactive. 363037-55-vol. 2- 49 768 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

14. INSPECTION OF COMPLETED PROJECTS Inspection of completed works was made during the fiscal year in the Kansas City District on the following flood protection projects: Project Inspection cost Missouri River agricultural levees ------$2, 074 Kansas City flood control project___ 1------1,888 Chariton River, Mo------7------72 Topeka, Kans------357 Stonehouse Creek, Kans ------433 Seward, Nebr------153 Bartley, Nebr------99 Indianola, Nebr ------92 Mouth of Delaware River, Kans ------111 Smoky Hill River south of Solomon, Kans -- ___------146 Kansas River at Lawrence, Kans _------94 Republican River near McCook, Nebr------106 County Bridge near Eudora, Kans------106 The total cost of inspections by hired labor (including a pending adjustment of $431) was $6,862.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated...... ------$2,100 $600 $2, 000 $4, 600 $6, 500 $15, 800 Cost__-...... - ... - 1,915 350 1, 073 5,601 6, 862 15, 800

15. FLOOD CONTROL WORK UNDER SPECIAL AUTHORIZATION Small flood control projects not specifically authorized by Congress (sec. "212" of the 1950 Flood Control Act). Costs were incurred on the following projects during the fiscal year. Seward, Big Blue River, Nebr.: Construction of approximately 12,000 feet of levee, excavation of approximately 3,000 feet of cutoff channel, and construction of drainage outlets were initiated during fiscal year 1952 and were completed during the fiscal year 1954, except for outstanding costs. Cost adjustments during the fiscal year were -$49. Missouri River at New Haven, Mo.: Construction, by contract, dur- ing the fiscal year consisted of approximately 2,250 linear feet of levee with appurtenant drainage facilities, seeding and slope protection and a pumping plant. Engineering and design and supervision and ad- ministration of construction were accomplished by hired labor. The total cost during the fiscal year (including a pending adjustment of - $9), was $122,235. Salt Creek at Barnard, Kans.: Definite project studies were com- pleted by hired labor during the fiscal year at a total cost (including a pending adjustment of $3) of $4,493. FLOOD CONTROL--KANSAS CITY, MO., DISTRICT 769

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated...... $146, 700 $7, 000 $148, 700 $192, 652 -$31, 113 $413, 939 Cost------8, 664 88, 813 171,118 16, 873 126, 679 412,147

Other new work data: Unobligated balance, fiscal year ending June 30, 1955------_ $1, 792 Unobligated balances available for succeeding fiscal year ending June 30, 1956------1, 792 Emergency flood control activities (sec. 210 of the 1950 Flood Control Act and supplemental authorizations). The following work was performed during the fiscal year: Cost during Description of work fiscal year Flood fighting and rescue work------$45, 444 Post flood reports ------, 037 Advance preparation for flood emergencies: Flood emergency manual------9, 414 Inspection of non-Federal flood control works------753 Rehabilitation : Farm levees------9, 696 This work was accomplished by hired labor during the fiscal year at a cost (including a pending adjustment of - $16,878) of $60,466. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated------...... $183,197 $12, 965,975 $17, 552, 500 ------$15,000 1 $39, 402, 425 Cost------.--- -- 217, 493 18, 323, 245 11, 398, 125 $783,388 60, 466 139,383,434

1 Exclusive of $131,343 contributed funds. Other new work data: Unobligated balance, fiscal year ending June 30, 1955------$18, 991 Unobligated balances available for succeeding fiscal year ending June 30, 1956------18, 991 16. EXAMINATIONS AND SURVEYS-FLOOD CONTROL STUDIES Preliminary examination and survey reports were under prepara- tion by hired labor at a cost during the fiscal year of (including a pending adjustment of $838) $37,174. Funds remaining amounting to $1,268 plus the allotment of $44,000 will be applied during the fiscal year ending June 30, 1956, to the continuation of work on preliminary examination and survey reports presently assigned to this district.

17. COLLECTION AND STUDY OF BASIC DATA The collection of stream and rainfall data was accomplished by hired labor at a cost during the fiscal year of (including pending adjustment of $16) $1,059.

IMPROVEMENTS OF RIVERS AND HARBORS IN THE OMAHA, NEBR., DISTRICT

This district comprises a small portion of southwestern North Dakota, all of South Dakota except the northwestern corner and a small northeastern portion, southeastern corner of Montana, eastern and south central Wyoming, a portion of north central Colorado, all of Nebraska except the southern portion, western Iowa, and a small portion of southwestern Minnesota, all embraced in the drainage basin of the Missouri River along the main stem and tributaries to Rulo, Nebr., except for that portion of the James River lying in North Dakota. The navigation improvement of that section of the Missouri River from Rulo, Nebr., to Kansas City, Mo. (Quindaro Bend), is under the jurisdiction of the Kansas City, Mo., district.

IMPROVEMENTS

Navigation Flood control--Continued Page Page 1. Missouri River, Kansas City 12. Cherrry Creek Dam and to Sioux City____ 772 Reservoir, Colo _ __- 788 2. Other authorized navigation 13. South Platte River, Colo .. 789 projects - 776 14. Chatfield Reservoir, South Platte River Basin, Colo__ 790 Flood Control 15. South Platte River levees and channel improve- 3. Fall River Basin, S. Dak ... 776 ments, Chatfield Reservoir 4. Missouri River Basin, Omaha to Fort Morgan, Colo ---791 district _ _ _ 778 16. Missouri River agricultural 5. Oahe Reservoir, Missouri levees, Sioux City to mouth River Basin, S. Dak. and (Sioux City, Iowa to Rulo, N. Dak_-_-_____ 779 Nebr.)- 791 6. Fort Randall Reservoir, Mis- 17. Other authorized flood con- souri River Basin, S. Dak_ 780 trol projects______793 7. Gavins Point Reservoir, Mis- 18. Inspection of completed souri River Basin, S. Dak. works- 793 and Neb______783 19. Flood control work under 8. Missouri River, Kenslers special authorization __ _ 794 Bend, Nebr. to Sioux City, Iowa _ _ _ 785 9. Sioux Falls, S. Dak -.. 786 General investigations 10. Little Sioux River and its tributaries, Iowa --.... 786 20. Examinations and surveys__ 795 11. Norfolk, Elkhorn River Ba- 21. Collection and study of basic sin, Nebr_ 787 data-_- ______-__ _- 795 771 772 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

1. MISSOURI RIVER, KANSAS CITY TO SIOUX CITY Location. The Jefferson, Madison, and Gallatin Rivers conjoin at Three Forks, Mont., to form the Missouri River, which flows southeasterly 2,464.4* miles across or along seven States to the Mississippi River, 17 miles above St. Louis. The river is the boundary between the States of Missouri, Kansas, Nebraska, and Iowa. For description, see page 1149, Annual Report for 1932. Previous projects. Under the River and Harbor Act of August 14, 1876, the first regulation works were constructed at St. Joseph and Nebraska City, but a project for systematic river improvement was not adopted until August 2, 1882, modified by the River and Har- bor Acts of July 5, 1884, September 19, 1890, and June 13, 1902. For further details see page 1893, Annual Report for 1915, and page 1175, Annual Report for 1938. Existing project. This provides for a channel of 9-foot depth and width not less than 300 feet, to be obtained by revetment of banks, construction of permeable dikes to contract and stabilize the water- way, cutoffs to eliminate long bends, closing of minor channels, re- moval of snags and dredging as required. Length of section under improvement (upper end of Quindaro Bend to Sioux City) is 376.3 miles. The ordinary fluctuation is about 14 feet and the extreme fluct- uation about 38 feet. The estimated cost of new work, revised in 1955, is $220,900,000 exclusive of amounts expended on previous projects. The estimated cost of annual maintenance is $3,200,000. The existing project was authorized by the following river and Harbor Acts:

Acts Work authorized Documents 1

Jan. 21, 1927 Appropriation of $12,000,000 authorized for the exist- H. Doc. 1120, 60th Cong., 2d sess. ing project. July 3, 1930 Appropriation of $15,000,000 additional authorized; additional allotments totaling $29,153,108 were made by the Public Works Administration under the provisions of the National Industrial Recovery Act of June 16, 1933, and $9,669,791.92 allotted under the provisions of the Emergency Relief Appropria- tion Act of Apr. 8, 1935. Aug. 30,1935 For completion of the project from the mouth to H. Doc. 238, 73d Cong., 2d sess. Sioux City, Iowa. MIar. 2, 1945 For a channel of 9-foot depth and 300-foot width- ..... H. Doc. 214, 76th Cong., 1st sess.

1 Contains the latest published maps of Missouri River.

Local cooperation. None required. Terminal facilities. Facilities for loading and unloading grain, petroleum products, and other commodities are at various locations of the river. These facilities are listed in the following table:

* 1941 adjusted mileage. RIVERS AND HARBORS-OMAHA, NEBR., DISTRICT 773

Location

Description of facility I Miles above Bank Nearest town mouth 2

Ways for manufacturing and launching floating equip- 670.3 Right___ Blair, Nebr. ment. Temporary terminal with facilities for handling and stor- 640.6 ___do----_ Omaha, Nebr. ing petroleum products. Grain elevator, headhouse, and conveyor_------632.3 ___do-.-.. Do. Gantry crane and dock, publicly owned------632.2 ___do - Do. Facilities for unloading and storing molasses -- -_ 631.8 .- _..do -- Do. Dock and warehouse, publicly owned ..------608.5 ___do...- Plattsmouth, Nebr. Facilities for unloading and storing molasses. _ 580. 0 ___do -..... Nebraska City, Nebr. Concrete platform and 10-ton derrick with 120-foot boom 579.6 ___do.... Do. for loading and unloading barges, publicly owned. Grain elevator and conveyor ...... ------579. 6 ___do.. Do. Sand and gravel transfer .....---- ... __------...... 579. 6 ___do Do. Grain elevator and conveyor (under construction)- .-.- 551.9 ___do----- Brownville, Nebr. Sand and gravel transfer ...... ------514. 5 __do Rulo, Nebr. Temporary oil line to riverbank ...... 514.4 ___do --- Do. Sand and gravel transfer ...... ------461.2 Left ...- St. Joseph, Mo. Facilities for loading grain_ ... .. _------458.3 ___do_.... Do. Sand and gravel transfer ------__ - -___ 434. 6 ___do _ Atchison, Kans. Do ------407.3 Right--_ Leavenworth, Kans. Marine ways and docks..------..... 407.2 -do -- Do. Bulk handling facilities_ ------393. 7 -_do-.... Pomeroy, Kans. Facilities for unloading petroleum...... ------387. 5 Left--_-_ Parkville, Mo.

1 Privately owned and operated unless otherwise indicated. 2 1941 adjusted mileage. The above-listed facilities are considered adequate for existing commerce. Promotion of additional facilities at the following locations, as soon as conditions warrant, is contemplated: Sioux City, Sloan, Whiting, Onawa, Blencoe, and Council Bluffs, Iowa; South Sioux City, Decatur, Tekamah, Blair, Omaha, Nebraska City, and Rulo, Neb.; St. Joseph and North Kansas City, Mo.; and Leavenworth and Kansas City, Kans. Operations and results during fiscal year. New work: This work consists of construction, by contract, on 75 pile dikes and 26 pile dike extensions totaling 33,634 linear feet, 33 lengths of revetment totaling 49,330 linear feet, and dredging and point removal of 355,162 cubic yards of material in connection with construction at a total cost of $4,346,200; initiation of dredging of pilot canal in Upper Decatur Bend (310,600 cubic yards of material dredged) at a cost of $135,989; payments for land acquisition in the amount of $7,600; construction, by hired labor, of 36 pile dikes totaling 10,100 linear feet, and 3 lengths of revetment totaling 2,795 linear feet at a total cost of $495,726; removal of 6,366 linear feet of existing structures at a total cost of $89,912; acquisition of right-of-way at a cost of $31,507; re- moval of 1,297,410 cubic yards of material from 3 localities in connec- tion with construction by the U. S. Dredge Lewis, and 60,367 cubic yards of material from 1 locality by the U. S. Dredge Chittenden at a total cost of $149,506; minus pending adjustments totaling $20,824. The total cost of new work, including engineering, design, surveys, and supervision and administration, was $5,235,616. Maintenance: This work consisted of construction, by contract, of repair and replacement of 40,287 linear feet of pile dikes and 29,984 linear feet of revetment at a total cost of $1,606,748; the accomplish- ment, by hired labor, of repair or replacement of 26,286 linear feet of 774 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 pile dikes and 64,614 linear feet of revetment, and removal of 54 linear feet of existing structures, at a total cost of $1,124,743; removal of 929,200 cubic yards of material from 6 localities by the U. S. Dredge Lewis, and 383,388 cubic yards of material from 5 localities by the U. S. Dredge Chittenden; removal of 2,075 cubic yards of slag and rock by dragline; removal of 2,080,511 cubic yards of material from 3 localities by the U. S. Dredges Black and Keokuk; dredging 217,630 cubic yards of fill in damaged channel line structures with the U. S. Dredge Chittenden at a total cost of $446,604; real estate management at a cost of $100. Other miscellaneous costs, all charged to main- tenance, were: Stream gaging for special studies and working data at a cost of $19,811; snagging at a cost of $5,226; surveys and mapping at a cost of $51,657; navigation studies at a cost of $40,706; channel reconnaissance and channel marking at a cost of $171,013, plus pending adjustments in the amount of $2,678. The total cost of all main- tenance, prosecuted with regular funds was $3,469,286. The total cost for the fiscal year was $8,704,902, of which $5,235,616 was for new work and $3,469,286 for maintenance. Condition at end of fiscal year. Construction was initiated on the project in fiscal year 1928 and the scheduled completion dates are Sioux City to Omaha fiscal year 1965 and Omaha to Kansas City fiscal year 1961. The work on the entire project Kansas City, Mis- souri to Sioux City, Iowa, was approximately 54 percent complete at the end of the fiscal year, based on the present approved estimate of cost. Kansas City to Omaha: The work on this section of the project was approximately 76 percent complete at the end of the fiscal year. The work remaining to be done to complete this section of the project consists principally of the construction of additional bank stabiliza- tion structures and the strengthening of existing pile structures to improve their effectiveness and to prevent their deterioration prior to final stabilization of the banks. Considerable progress has been made in alleviating the more critical erosion problems caused by se- vere floods, curtailment during World War II, and insufficient funds since the war. A reliable channel suitable for limited navigation is available through this section. The practical draft at ordinary stages of the river is 6 to 61/2 feet, with additional depths available during high stages. Commercial navigation was inaugurated on this sec- tion in May 1939 but was interrupted due to the war from 1942 until October 1946. Omaha to Sioux City: The work between Omaha, Nebr., and Sioux City, Iowa, was approximately 31 percent complete at the end of the fiscal year. Loss of alinement and progressive destruction of control works continue in over 65 percent of this section of the river, owing to the natural deterioration of the structures as a result of curtailment of work during World War II and inadequate funds for new work and maintenance for a 10-year period following the war. Much of the river has reverted to its original wild state, and bank erosion is severe at many locations. The channel for this section limits drafts to 31/2 feet, prohibiting commercial navigation. The construction, repair and strengthening of structures along the Sioux City waterfront to control a severe bank erosion condition has RIVERS AND HARBORS-OMAHA, NEBR., DISTRICT 775

been initiated. Realinement and bank stabilization were started in the vicinity of Decatur, Nebr., where loss of previous control re- quired a complete redesign of the river. The section from Fort Cal- houn to Omaha, Nebr., was improved by the construction of new control structures and the accomplishment of urgently needed reha- bilitation work. Under the existing project for systematic work on the 9-foot chan- nel, the work accomplished includes, 1,323,900 linear feet of revet- ment for permanently fixing the banks, 2,385,124 linear feet of pile dikes, 10,142 linear feet of rock dikes, 143,884 linear feet of abatis, 2,287 linear feet of jetties, recrowning 700 linear feet of an existing levee, 19,218 linear feet of retards for stabilization of channel widths, construction of 5 impermeable structures to close off auxiliary chan- nels, construction of 48,237 linear feet of asphalt revetment, effecting 3 channel cutoffs, and removal of 92,727,514 cubic yards of material dredged from the channel to obtain project depth and width. The total cost of work under the existing project to June 30, 1955, is:

Cost

New work Maintenance Total

Regular funds.....______... $80, 793, 768 $41, 145, 804 $121, 939, 572 Public Works funds .. . _ ___...... -___29, 038, 236 114, 180 29, 152, 416 Emergency Relief funds______9, 613, 073 56, 645 9, 669, 718 Total funds------119, 445, 077 41, 316, 629 160, 761, 706

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated- .-..... $3, 750, 000 $4, 000, 000 $4, 223, 000 $3. 500, 000 $6, 300, 000 1$123, 165, 558 Cost ------_------2, 484, 336 3, 603, 319 5, 959, 473 3,893, 654 5, 235, 616 1 122, 031, 694 Maintenance: Appropriated ...----- 3, 373, 500 4, 182, 000 5, 520, 700 3, 251,000 3, 466, 000 2 41, 995, 033 Cost------3, 111,640 4, 035, 078 6, 136, 140 3, 373, 986 3, 469, 286 2 41, 886, 833

1 Includes $29,038,236.29 National Industrial Recovery Act funds and $9,613,073.19 Emergency Relief funds. Also includes an amount for previous project of $2,586,616.56. 2 Includes $114,180.14 National Industrial Recovery Act funds and $56,644.65 emergency funds. Also includes an amount for previous project of $570,203.93. Other new work data: Unobligated balance, fiscal year ending June 30, 1955 ------$14, 464 Appropriated for succeeding fiscal year ending June 30, 1956___ 9, 450, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956_------9,464,464 Estimated additional amount needed to be appropriated for completion of existing project______88, 284, 442 776 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

2. OTHER AUTHORIZED NAVIGATION PROJECTS

For last Cost and expenditures to Estimated full renort, June 30, 1955 amount Name of project see Annual Report required for- New work Maintenance to complete

Big Sioux River, S. Dak., and Iowa------1952 ------.---.--.. $886,000 Missouri River, Sioux City, Iowa, to Fort Benton, Mont--.------1948 $3,123,141 $644,863 (1)

1Project complete.

3. FALL RIVER BASIN, S. DAK. Location. The work covered by this project is located in Custer and Fall River Counties, S. Dak., in and near the town of Hot Springs. The Hot Springs unit is in the town of Hot Springs, immediately south of the junction of Cold Brook and Hot Brook which combine to form Fall River; the Cold Brook Reservoir unit is approximately 11/4. miles north of the town of Hot Springs on Cold Brook; and the Cottonwood Springs unit is approximately 41/2 miles west of the town of IHot Springs on Cottonwood Springs Creek, one-half mile upstream from its confluence with Hot Brook. Existing project. The project as authorized by the Flood Con- trol Act approved August 18, 1941, is a plan of flood protection on the Fall River and tributaries, South Dakota, substantially in ac- cordance with the recommendations of the Chief of Engineers in House Document 655, 76th Congress, 3d session. The general plan of improvement provides for the protection from flood damage of the people and property of the town of Hot Springs, S. Dak. The Hot Springs channel improvement unit provides for the widen- ing, deepening, and straightening of the present channel of Fall River from a point near the confluence of Hot Brook and Cold Brook to a point 400 feet below the Eighth Street Bridge or a total distance of approximately 6,000 feet. Clearing of trees, boulders, concrete slabs, and all obstructions to flow is provided for. The Cold Brook Reservoir unit is designed to control an area of 70.5 square miles, and have a capacity of 6,000 acre-feet at spillway crest, with surcharge at maximum pool of 5,114 acre-feet. The fol- lowing features are included: Construction of an earthfill dam with uncontrolled outlet; and uncontrolled reinforced concrete conduit under the dam; and a spillway with a discharge capacity of 85,000 cubic feet per second at maximum pool elevation through solid rock adjacent to the reservoir. The Cottonwod Springs Reservoir unit will control an area of 26 square miles and have a capacity of 6,160 acre-feet at spillway crest with surcharge at maximum pool of 2,114 acre-feet. The following features are included: Construction of an earthfill dam faced up- stream and downstream by dump rock; an uncontrolled reinforced concrete conduit under the dam; and a spillway of 16,100 cubic feet per second capacity at maximum pool elevation through the solid rock right abutment. The (1955) estimated Federal cost is $4,600,000, the estimated local cost (1955) is $138,200. FLOOD CONTROL--OMAHA, NEBR., DISTRICT 777

Local cooperation. In addition to the usual requirements for local cooperation as provided by law, local interests are required to bear the expense of bridge modifications and give assurances satisfactory to the Secretary of War that they will take such measures as may be necessary to prevent any encroachments upon the flood channel ca- pacities to be provided by the improvements. The assurances of local cooperation for the Hot Springs unit were approved by the Secretary of War, May 18, 1946. Operation and results during fiscal year (regular funds). Con- struction of roads and parking area at Cold Brook Dam was initiated and completed by contract. Preparation of the master plan for reser- voir management and public use development was completed. Pur- suant to Public Law 625, 83d Congress, 2d session, nine claims for damages to wells were received and investigated. These claims, to- gether with the District Engineer's recommendations, were forwarded to higher authority for approval. Total cost for new work for the fiscal year was $11,939. Condition at end of fiscal year. Construction of the Hot Springs unit was completed during fiscal year 1951. The cost of this unit was $1,068,195. Of this amount, $1,063,945 was from regular funds and $4,250 was from contributed funds. Construction of the Cold Brook unit dam and appurtenances was completed in fiscal year 1953 with the exception of a road and parking area which were completed by contract during fiscal year 1955. Preparation of the master plan for the Cold Brook Reservoir management and public use development is complete. Final settlement of claims for damages to wells on the Cold Brook unit is pending. Design memorandum studies required for the Cottonwood Springs Reservoir unit have been deferred. The total cost of new work to the end of the fiscal year was $2,677,546 of which $2,673,296 was from regular funds and $4,250 contributed funds. The total cost of operation and maintenance activities to the end of the fiscal year was $11,004.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated ------..... $400, 000 $425, 000 $425, 000 -$96, 665 -$43, 335 $2, 690, 000 Cost------578, 075 519, 507 320, 479 12, 610 11, 939 1 2, 673, 296 Maintenance: Appropriated---- ...... ------7, 600 4, 000 11, 600 Cost .....------6, 804 4, 200 11, 004

1 In addition, the sum of $4,250 was expended from contributed funds. Other new work data: Unobligated balance, fiscal year ending June 30, 1955- .-.----$9, 953 Unobligated balances available for succeeding fiscal year ending June 30, 1956------9------, 953 Estimated additional amount needed to be appropriated for completion of existing project ------1, 910, 000 778 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

4. MISSOURI RIVER BASIN, OMAHA DISTRICT Location. The flood control improvements included in this project are located on and along the Missouri River and several of the principal tributaries of the Missouri River and are located in the States comprising the Missouri River Basin. Existing project. The general comprehensive plan for flood control and other purposes in the Missouri River Basin provides for levees along the Missouri River between Sioux City, Iowa, and the mouth and reservoirs located on the main stem of the Missouri River and on the tributaries for control of flood flows at the dam sites. The existing project was authorized by the following Flood Control Acts:

Acts Work authorized Documents 1

June 28, 1938 Adopted general comprehensive plan for Missouri Flood Control Committee Doc. 1, River Basin and authorized $9,000,000 for initiation 75th Cong., 1st sess. and partial accomplishment. Aug. 18,1941 Modified the general comprehensive plan to include H. Doc. 842, 76th Cong., 3d sess. Harlan County Dam and Reservoir on the Repub- lican River, Nebr., and authorized $7,000,000 additional expenditure. Dec. 22,1944 Expanded the general comprehensive plan for the H. Doc. 475, 78th Cong., 2d sess.; Missouri River Basin and authorized $200,000,000 S. Doc. 191, 78th Cong., 2d sess.; additional expenditure. S. Doc. 247, 78th Cong., 2d sess. July 24,1946 Authorized an additional expenditure of $150,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. May 17,1950 Authorized an additional expenditure of $250,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. Sept. 3,1954 Expanded the general comprehensive plan for the H. Doc. 642, 81st Cong., 2d sess.; Missouri River Basin and authorized $217,710,000 H. Doc. 549, 81st Cong., 2d sess. additional expenditure.

1 Contain the latest published maps of Missouri River Basin. Included in the comprehensive plan are the following projects in the Omaha district:

Estimated Project Federal cost

Missouri River agricultural levees, Sioux City, Iowa, to Rulo, Nebr------1 $42, 800, 000 Oahe Reservoir, S. Dak. and N. Dak _--...__...... ------1 321,000,000 Fort Randall Reservoir, S. Dak ------...... ------1 189, 300.000 Gavins Point Reservoir, S. Dak. and Nebr------1 53, 000, 000 Big Bend Reservoir, S. Dak ...... ------73, 000, 000 Sioux City, Iowa ...... ------1,300,000

1 Details presented in individual report. Operations and results during fiscal year. The operations dur- ing the fiscal year, together with costs for those projects on which plans were in preparation, are shown in individual reports. Condition at end of fiscal year. The conditions of the various projects on which work had been initiated are given in individual reports. Under sections 7 and 9 of Public Law 534, Flood Control Act, approved December 22, 1944, the Corps of Engineers is responsible for detailed scheduling of operations of storage capacity reserved for or assigned to flood control in reservoirs constructed by the FLOOD CONTROL-OMAHA, NEBR., DISTRICT 779

Bureau of Reclamation as well as those constructed by the Corps of Engineers. The cost of work under this heading during the fiscal year was $39,144. Cost and financial summary

Fiscal year ending June 30 Total to June .... 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated_ _ _ $15, 000 $20, 000 $28, 000 $32, 700 $42, 000 $137, 700 Cost ------12, 393 22, 546 20, 593 38, 952 39, 144 133, 628

5. OAHE RESERVOIR, MISSOURI RIVER BASIN S. DAK. AND N. DAK. Location. The Oahe dam site is located on the Missouri River in Hughes and Stanley Counties, S. Dak., about 6 miles northwest of Pierre, S. Dak., and 1,123 miles above the mouth of the river. Existing project. This provides for the construction of a rolled earthfill dam with a maximum height of 242 feet and reservoir for flood control, irrigation, navigation, hydroelectric power, and other p)urposes, with a gross storage capacity of 23,600,000 acre-feet at maximum operating pool. It provides for the initial power installa- tion of 2 units nominally rated at 85,000 kilowatts each. The existing project was authorized by the Flood Control Act, approved December 22, 1944 (Public Law 534, 78th Cong., 2d sess.), as part of the general comprehensive plan for flood control and other purposes in the Mis- souri River Basin. The estimated cost (1955) is $321,000,000 for the initial project only, which includes initial power installation only. Local cooperation. Section 2 of the Flood Control Act, approved June 28, 1938, applies. Operations and results during fiscal year (regular funds). Prepa- ration of plans and specifications continued by hired labor. Nego- tiations for a contract were initiated \vith an architect-engineer firm for preliminary studies on reservoir railroad crossings. Acquisition of reservoir lands was continued. A negotiated contract was entered into with the Chicago, Milwaukee, St. Paul & Pacific Railroad for railroad relocations. The State of South Dakota continued design work for highway relocations under a negotiated design and con- struction contract. Work was initiated on a negotiated contract with the city of Pollock, S. Dak. for relocation of sewer, water, and muni- cipal facilities. Minor negotiated contracts were entered into for relocation of power and telephone lines. A contract was awarded for construction of the flood control shafts substructure. Construc- tion of the embankment and right bank excavation continued under the contract for earthwork stage III. Work was initiated on con- tracts awarded for construction of earthwork stage IV on the left bank and the downstream flood control tunnels and stilling basin on the right bank. Construction was continued on the intakes, upstream flood control tunnels, and bulkhead frames. Work was completed on the administration facilities, circuit breakers, transformers, and coupling capacitor potential device equipment. 780 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

The total cost of new work during the fiscal year was $9,612,508. Conditions at the end of the fiscal year. Construction was initiated on the project in August 1948 and is scheduled for completion in 1963. Work in connection with the preparation of detailed plans was complete. Land acquisition was approximately 3 percent complete. Design of the control shaft superstructure was in progress. A pre- liminary design memorandum was submitted by the State of South Dakota for relocation of U. S. Highway 212 and the Missouri River bridge at Forest City. Design and preparation of plans and specifi- cations for relocation of sewer and water facilities at Mobridge, S. Dak., was initiated. Design studies in connection with earthwork stage V, spillway structure and excavation, power facilities, and rail- road relocations were in progress. The contract for earthwork stage III, which involves approximately 13 million cubic yards of excava- tion, was approximately 85 percent complete. The contract for earth- work stage IV, which involves in excess of 16 million cubic yards of excavation, was approximately 6 percent complete. Excavation of upstream flood control tunnels Nos. 1 and 2 was complete and con- creting in tunnel No. 1 was complete. Contractors for the stilling basin and downstream flood control tunnels had nearly completed assembly of plant facilities and had commenced construction on their respective contracts. A contract was awarded for construction of the flood control shafts substructure. Field surveys were being made to determine the extent of cemetery relocations required. The entire project was approximately 10 percent complete. The total cost of new work to the end of the fiscal year was $29,954,040 all of which was accomplished with regular funds.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated-...... $3, 600, 000 $3, 770, 000 $2, 985, 000 $6, 550, 000 $9,700, 000 $32,605, 000 Cost------3,273, 823 3,556, 714 3,605,872 4,958, 130 9,612,508 29,954, 040

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 _..... $23, 750 Appropriated for succeeding fiscal year ending June 30, 1956__ 26, 000, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956 ------26, 023, 750 Estimated additional amount needed to be appropriated for completion of existing project------262, 395, 000

6. FORT RANDALL RESERVOIR, MISSOURI RIVER BASIN, S. DAK. Location. The Fort Randall Dam site is located on the Missouri River in Charles Mix and Gregory Counties, S. Dak., about 82 miles above Yankton, S. Dak. The site is 922 miles above the mouth of the Missouri River and 162 miles above Sioux City, Iowa. Existing project. This provides for the construction of a rolled earthfill dam with a maximum height of 160 feet and a reservoir for flood control, irrigation, navigation, hydroelectric power, and FLOOD CONTROL--OMAHA, NEBR., DISTRICT 781 other purposes, with a gross storage capacity of 6,300,000 acre-feet at maximum operating pool. It provides for the ultimate power in- stallation of 8 units nominally rated at 40,000 kilowatts each. The project was authorized by the Flood Control Act approved December 22, 1944 (Public Law 534, 78th Cong., 2d sess.), as part of the general comprehensive plan for flood control and other pur- poses in the Missouri River Basin. The estimate of cost (1955) is $189,300,000. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operation and results during fiscal year (regular funds). Prepara- tion of contract plans and specifications by hired labor was continued. A contract for design of the hydroelectric power plant was continued and a contract for design of the railroad bridge across the Missouri River for the relocated Chicago, Milwaukee, St. Paul & Pacific Rail- road was completed. Acquisition of land was completed with the ex- ception of final court awards and disposal of improvements. A nego- tiated contract with the State of South Dakota for the relocation of South Dakota State Highway No. 47 and U. S. Highways Nos. 16, 18, and 281 was continued. Condemnation proceedings for the relo- cation of county and township roads in Charles Mix County were continued. A negotiated contract with the Chicago, Milwaukee, St. Paul & Pacific Railroad for materials and right-of-way involved in the relocation of railroad facilities in the vicinity of Chamberlain and Oacoma, S. Dak., was continued. Continuing contracts for the relocation of the Chicago, Milwaukee, St. Paul & Pacific Railroad at Chamberlain, S. Dak., Stages II-B, IV and V were completed. Negotiated contracts with the owners for the relocation of facilities of the Northwestern Bell Telephone Company, Fort Hale Telephone Company, West Central Electric Cooperative, Central Electric and Gas Company, and city of Chamberlain sewer system were com- pleted. Pursuant to an agreement made with the Bureau of Indian Affairs for the relocation of facilities serving the Crow Creek Indian Reservation, contracts for the relocation of roads A and C and con- struction of sewer and water facilities were completed, and continu- ing contracts initiated for the construction of the elementary school, miscellaneous buildings, and road D. Bank slope protection, sections II and III in the vicinity of Chamberlain, S. Dak., were completed. Earthwork stages IV and V were completed which completes embank- ment and major excavation. Approximately 1,300,000 cubic yards of materials were excavated and approximately 400,000 cubic yards were placed in the embankment. Continuing contracts for the con- struction of spillway stages I and II and for furnishing floating booms, regulating gate and frame, and intake gates were completed. Con- struction of the regulating gate structure was initiated by modication to the powerhouse superstructure contract. A contract for the con- struction of penstocks and surge tanks was continued. The furnish- ing of regulating gate hoist, monorail equipment and stoplogs, and lifting beams and bulkheads for tunnel No. 10 were continued. Fur- nishing trashrack rake and installation of floating booms were com- pleted by contract. Contracts for furnishing trashracks for tunnel No. 10 and embankment seeding were initiated. A continuing con- 782 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 tract was initiated for the construction of the crest roadway and public service roads. Contracts for furnishing turbines, generators, governors, power transformers, circuit breakers, and main control boards were continued. Two continuing contracts for circuit break- ers and switchgear were completed. Four additional generators were placed in operation during the year. Contracts for the construction of public service building and roads, parking areas and boat ramps section I were completed. Roads, parking areas and boat ramps section II, and seeding and planting stage IV were initiated by con- tract. Construction of minimum recreation facilities was continued by hired labor and contract. A continuing contract for wildlife habitat planting was continued. The total cost of new work during the fiscal year was $16,915,338 from regular funds. Operation and maintenance activities included the operation of six generating units of the powerhouse, regulation of the reservoir through operation of the outlet works, training of powerhouse oper- ators, reservoir regulation studies, and miscellaneous items of ordinary repairs and maintenance. The total cost of operation and mainte- nance activities during the fiscal year was $326,908, all from regular funds. Conditions at end of the fiscal year. Construction was initiated on the project in May 1946 and is scheduled for completion in 1957. Preparation of detailed plans was complete, and preparation of con- tract plans and specifications by hired labor was about 96 percent com- plete. A contract for the design of the hydroelectric power plant was approximately 99 percent complete and a contract for the design of the Chicago, Milwaukee, St. Paul & Pacific Railroad bridge was complete. Acquisition of land for the dam and reservoir was complete, however, 322 tracts were still in litigation at the end of the fiscal year. Under the negotiated contract with the State of South Dakota for highway relocation, U. S. Highway Nos. 18 and 281 have been routed across the dam, although surfacing of the road across the dam was in progress by separate contract. The relocation of U. S. Highway No. 16 and two sections of State Highway No. 47 are complete and work was in progress on the final section. The relocation of the Chicago, Milwau- kee, St. Paul & Pacific Railroad was complete except for the formal transfer of lands involved. Bank slope protection and relocation of sewer facilities at Chamberlain, South Dakota, were completed. Con- demnation proceedings for relocation of roads in Charles Mix County were in progress. All utility relocations including telephone and power facilities were complete. Earthwork stage V (final earthwork) was complete. The spillway was complete. Continuing contracts for furnishing generators, hydraulic turbines, turbine governors, power transformers, oil circuit breakers, main control boards, main and neutral switchgear, oil-filled pipe cable, and outdoor switchgear were in progress. Six generators were in operation, the sixth unit having gone on the line June 2, 1955. A total of 605,125,000 kilowatt- hours of electricity were produced during fiscal year 1955. Continu- ing contracts for the construction of powerhouse superstructure including the regulating gate structure and penstocks and surge tanks were approximately 92 and 98 percent complete, respectively. Filling FLOOD CONTROL-OMAHA, NEBR., DISTRICT 783

of the operating or power zone of the pool proceeded as river flows permitted. On June 30, 1955, the pool was at approximate elevation 1340 and a total volume of 3,055,745 acre-feet of water was impounded in the reservoir. The entire project was 95 percent complete. The major items of work remaining on this project are: completion of work in progress described above downstream bank stabilization as needed; permanent service roads and final grading and drainage; and construction of reservoir approach roads and public access facilities. The total costs to the end of the fiscal year were $180,768,301 for new work and $539,845 for maintenance, all from regular funds.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated ...... $32, 580, 000 $33, 064, 975 $31, 975, 025 $13, 000, 000 $15, 500, 000 $181, 397, 700 Cost_ --- 23, 966, 599 19, 862, 165 34, 903, 774 35, 843, 461 16, 915, 338 180, 768, 301 Maintenance: Appropriated ....------224, 200 318, 500 542, 700 Cost -_------_---- 212, 937 326, 908 539, 845

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 _-_ $259, 778 Appropriated for succeeding fiscal year ending June 30, 1956 _ 5, 860, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956 ______6, 119, 778 Estimated additional amount needed to be appropriated for com- pletion of existing project______2, 042, 300

7. GAVINS POINT RESERVOIR, MISSOURI RIVER BASIN, S. DAK. AND NEBR. Location. The Gavins Point Dam site is located on the Missouri River in Yankton County, S. Dak., and Knox County, Nebr., about 4 miles upstream from Yankton, S. Dak., and about 846 miles above the mouth of the river. Existing project. This provides for the construction of a concrete and rolled earthfill dam with a maximum height of 72 feet and a reservoir for flood control, irrigation, navigation, hydroelectric power, and other purposes, with a gross storage capacity of 540,000 acre-feet at maximum operating pool. It provides for the ultimate power in- stallation of three units nominally rated at 33,333 kilowatts each. The existing project was authorized by the Flood Control Act ap- proved December 22, 1944 (Public Law 534, 78th Cong., 2d sess.) as part of the general comprehensive plan for flood control and other purposes in the Missouri River Basin. The estimate of cost (1955) is $53,000,000. Local cooperation. Section 2 of Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. (Regular funds.) Preparation of plans and specifications was continued by hired labor.

363037-55-vol. 2-50 784 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 Acquisition of land in the reservoir area was continued. Negotia- tions were continued for relocation of county roads in South Dakota and Nebraska. Negotiations were completed for relocation of tele- phone and power lines. Relocation of the Springfield, S. Dak., sewer was deferred pending decisions as to development of a recreational area proposed by State and local interests. Contracts were awarded for reservoir clearing. Construction continued on the powerhouse substructure, intake structure, spillway, and earthwork stage II. The spillway, intake structure, and powerhouse substructure were essen- tially completed. Preparations were made for diversion of the river in July 1955. Construction of the powerhouse superstructure was initiated. Work was completed on supply contracts for floating boom, trashrack, gantry crane, ice skimmer, monorail, and stop logs. Work continued on supply contracts for turbines, generators, governors, 15 KV transformer leads, 13.8 KV switchgear, 460-V unit type sub- station, main control board, draft tube crane, transformers, and oil circuit breakers. Supply contracts were awarded and construction initiated on the station service control center, machine shop crane, standby generator, switchyard and transformer yard structures, and miscellaneous equipment. The total cost of new work during the fiscal year was $16,751,164. Condition at end of fiscal year. Construction on the project was initiated in March 1952 and is scheduled for completion in 1958. En- gineering and design was approximately 85 percent complete. De- sign memoranda were being prepared for recreational development of the reservoir area. Construction of the embankment, powerhouse, spillway, and related structures advanced to the stage where diversion can be effected in July 1955. Real estate acquisition was approxi- mately 45 percent complete. Options and condemnation assemblies were being processed for all land required for diversion. Reservoir clearing was approximately 80 percent complete. Work on all major contracts was progressing at a rate satisfactory to meet the scheduled initial power generation date of October 1956. The project as a whole was approximately 60 percent complete. The total cost of new work to the end of the fiscal year was $31,- 377,394 all of which was accomplished with regular funds.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated...... $200, 000 $2, 000, 000 $7,712,000 $10, 000,000 $12, 300, 000 $32, 680, 785 Cost------121, 964 463, 085 3,901, 073 9, 728, 086 16, 751, 164 31, 377, 394

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 ------$483, 130 Appropriated for succeeding fiscal year ending June 30, 1956___ 12, 950, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956______13, 433, 130 Estimated additional amount needed to be appropriated for completion of existing project------_ 7, 369, 215 FLOOD CONTROL-OMAHA, NEBR., DISTRICT 785

8. MISSOURI RIVER, KENSLERS BEND, NEBR., TO SIOUX CITY, IOWA Location. This project is located along the Missouri River be- tween Ponca Bend, Nebr., and the combination bridge at Sioux City, Iowa. Existing project. The existing project authorized by the Flood Control Act approved August 18, 1941, and modified by the Flood Control Act approved June 30, 1948, provides for the construction of dikes, revetments and channel improvement along the Missouri River from Miners Bend and vicinity, S. Dak. and Nebr., to Sioux City, Iowa. The estimated cost of new work under the project (1955) is $11,000,000. The estimated cost of annual maintenance is $161,000. Local cooperation. Fully complied with. Operations and results during fiscal year. New work consisted of construction, by contract, of 7 lengths of revetment totaling 19,735 linear feet at a cost of $418,165. Maintenance consisted of repair of 8,181 linear feet of revetment, by contract, and stream gaging by hired labor at a total cost of $89,400. The total cost for the fiscal year was $507,565. Condition at end of fiscal year. Work on the project was started in June 1946 and was approximately 42 percent complete on June 30, 1955, based on the present estimate of cost. The project is sched- uled for completion in fiscal year 1961. The physical extent of work accomplished at the end of the fiscal year includes the completion of 550 linear feef of rock dikes, 7,441 linear feet of pile dikes, and 91,537 linear feet of revetment. Construction of control works at the head of the project was started in October 1954 and consist of left bank dikes and right bank revet- ment to direct the flow and prevent bank erosion in the Miners Bend area. The work in this reach of the project was 5 percent complete at the close of the fiscal year. Structures were constructed, repaired, and strengthened along the right bank in Kenslers and Big Sioux Bends and on the left bank in McCook Lake Bend. The completed work is effective in con- trolling the bank erosion and at the close of the fiscal year this reach was approximately 79 percent complete. Erosion is active on the left bank in Upper Sioux City Bend since construction has not been started which will control erosion at this site. The total cost of the project at the end of the fiscal year was $5,- 203,249, of which $4,668,971 was for new work and $534,278 was for maintenance. 786 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated- .... . $1, 014, 609 -- $500, 000 $600, 000 $4, 887, 669 Cost_- 554, 116 $505, 590 $403, 291 480, 868 418, 165 4, 668, 971 Maintenance: Appropriated ------58, 000 70, 000 57, 000 99, 000 88, 400 534, 400 Cost------_ ------112,894 70,013 56, 625 100,552 89, 400 534, 278

Other new work data: Unobligated balance, fiscal year ending June 30, 1955_-- $752 Appropriated for succeeding fiscal year ending June 30, 1956__ 600, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956______600, 752 Estimated additional amount needed to be appropriated for com- pletion of existing project______---_--_ _ _ __ 5, 512, 331

9. SIOUX FALLS, S. DAK. Location. The Sioux Falls, S. Dak., local protection project is located on the Big Sioux River and its tributaries at Sioux Falls, S. Dak. Existing project. The project consists of channel improvement and levees along the Big Sioux River and along the lower one-half mile of Skunk Creek, and diversion headworks, a diversion channel and a concrete diversion chute and stilling basin to carry the diverted flood- waters to the Big Sioux River below the falls. The project was au- thorized by the Flood Control Act approved September 3, 1954, in accordance with the recommendations of the Board of Engineers for Rivers and Harbors in its report dated March 15, 1954. The estimated cost of the improvement (1955) is $4,410,000 of which $3,840,000 is Federal cost for construction and $570,000 is local costs for lands and relocations. Local cooperation. Section 201 of the Flood Control Act approved September 3, 1954, applies. In addition, local interests are required to provide right-of-way for temporary ponding of interior drainage. Operations and results during the fiscal year. No work has been initiated under this project. Condition at end of the fiscal year. No work has been initiated. Cost and financial summary Other new work data: Appropriated for succeeding fiscal year ending June 30, 1956 .-__ $400, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------400, 000 Estimated additional amount needed to be appropriated for com- pletion of existing project ______--____-______3, 440, 000

10. LITTLE SIOUX RIVER AND ITS TRIBUTARIES, IOWA Location. The project is located along the Little Sioux River and its tributaries, Maple River, West Fork, Wolf Creek, Farmers-Garret- son Ditch, in Harrison, Monona, and Woodbuxy Counties in northwest Iowa. FLOOD CONTROL-OMAHA, NEBR., DISTRICT 787

Existing project. The project provides for channel straightening and enlargement, construction of levees, and bridge improvements and alterations on the Little Sioux River from the mouth to Smith- land; on Maple River from the mouth to Castana; on Farmers-Gar- retson Ditch from the mouth to the Woodbury-Monona County line; and on West Fork and Wolf Creek from their confluence to the Wood- bury-Monona County line. It also provides for a desilting basin be- tween West Fork and Wolf Creek and a diversion channel from the desilting basin to Little Sioux River, and for enlargement of the outlet of the Monona-Harrison Ditch. A project for flood protection on Little Sioux River, Iowa, authorized by Public Law 341, 80th Con- gress, 1st session, approved August 4, 1947, in accordance with the recommendations in House Document 275, 80th Congress, 1st session, was modified and supplemented substantially in accordance with rec- ommendations of the Chief of Engineers in Senate Document 127, 83d Congress, 2d session, and was authorized by the Flood Control Act approved September 3, 1954. The estimated cost of the improvement (1955) is $20,160,000 of which $17,300,000 is Federal cost for con- struction and $2,860,000 is local costs for lands, damages, bridge construction, bridge alterations, and relocations of roads, buildings, power and telephone lines, and pipelines. Local cooperation. Section 201 of the Flood Control Act approved September 3, 1954, applies. Operations and results during fiscal year. No work has been ac- complished during the fiscal year. Conditions at the end of fiscal year. Work on preparation of de- tailed plans and specifications was initiated under the previous authorization at a total cost of $152,100.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated-...- -$152,100 Cost_Cost------$18, 718 $2, 386 $152,152, 100

Other new work data: Appropriated for succeeding fiscal year ending June 30, 1956 -- $500, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956 ______500, 000 Estimated additional amount needed to be appropriated for com- pletion of existing project------16, 647, 900

11. NORFOLK, ELKHORN RIVER BASIN, NEBR. Location. The Norfolk, Nebr., local protection project is located on the Elkhorn River and its tributaries, the North Branch Elkhorn River and Spring Creek, in northeast Nebraska. Existing project. The project consists of approximately 57,000 feet of levees along the left bank of the Elkhorn River; a leveed diversion channel approximately 10,700 feet in length, east of Norfolk; a gated 788 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 19 5 diversion structure on the North Branch Elkhorn River; a leveed diversion channel, approximately 2,400 feet long, on Spring Creek near its confluence with the North Branch Elkhorn River; and a levee- inclosed floodway, approximately 7,300 feet long, from the diversion channel downstream to the confluence of the North Branch Elkhorn River and the Elkhorn River. This project is a unit of the plan of improvement for the main stem and certain tributaries of the Elkhorn River for flood control and allied purposes. The project was author- ized by the Food Control Act approved May 17, 1950, substantially in accordance with the recommendations of the Chief of Engineers in House Document 215, 81st Congress, 1st session. The estimated cost of the improvement (1955) is $3,540,000 of which $2,860,000 is Federal cost for construction and $680,000 is local costs for lands and damages. Local,cooperation. Section 201 of the Flood Control Act approved May 17, 1950, applies. Operations and results during the fiscal year.-No work has been initiated under this project. Condition at end of fiscal year. No work has been initiated.

Cost and financial summary Other new work data: Appropriated for succeeding fiscal year ending June 30, 1956G__ $25, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------25, 000 Estimated additional amount needed to be appropriated for com- pletion of existing project------__ 2, 835, 000

12. CHERRY CREEK DAM AND RESERVOIR, COLO. Location. The Cherry Creek Dam and Reservoir is located on Cherry Creek in Arapahoe County, Colo., approximately 6 miles south- east of the city of Denver, Colo. Cherry Creek joins the South Platte River within the city limits of Denver. Existing project. The project consists of a rolled earthfill dam with maximum height of 140 feet above the stream bed and 14,300 feet in length. The project includes a reinforced concrete outlet works and an uncontrolled side channel spillway canal discharging into the adjacent Toll Gate Creek, thus bypassing the city of Denver. The Cherry Creek project provides reservoir storage capacity of 95,000 acre-feet below the spillway canal invert and surcharge storage of 136,400 acre-feet above this elevation. Initial plan for operation is for flood control only. The plan of operation in the ultimate develop- ment for multiple purpose uses includes 10,000 acre-feet for sediment storage, 85,000 acre-feet for conservation purposes, and surcharge storage for flood control purposes. The estimated cost of the initial project for flood control only (1955) is $14,623,870. The existing project was authorized by the following Flood Control Acts: FLOOD CONTROL-OMAHA, NEBR., DISTRICT 789

Acts Work authorized Documents

Aug. 18,1941 The initiation and partial accomplishment of the H. Doc. 426, 76th Cong., 1st sess. project. Dec. 22, 1944 Completion of the plan approved in the act of Aug. 18, Do. 1941. Do ...... General comprehensive plan, Missouri River Basin.. H. Doc. 475, 78th Cong., 2d sess.; S. Doc. 191, 78th Cong., 2d sess.; S. Doc. 247, 78th Cong., 2d sess.

Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operation and results during fiscal year (regular funds). This project, with the exception of minor completion items, was completed June 30, 1953. Preparation of a design memorandum for the instal- lation of a hydrologic reporting network is in progress. Litigation to establish equitable payment for certain tracts of reservoir land and flowage rights was continued. The total cost of new work for the fis- cal year was $22,267. Operation and maintenance activities included the administration of the project area; continuation of sediment studies and stream gaging activities; and continuation of miscellaneous items of ordinary repairs, maintenance, improvements, and reconstruction. The total cost of operation and care activities during the fiscal year was $36,128. Condition at end of fiscal year. Construction was initiated in fiscal year 1943 and all remaining minor items of work are scheduled for completion by June 1956. Final litigation to establish equitable payment for certain tracts of reservoir land and flowage rights is still pending. The total cost of new work to the end of the fiscal year was $14,588,482. The total cost of operation and maintenance was $141,415, all from regular funds. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated------...... $216, 708 - -- $35, 000 -$5, 000 $56, 600 $14, 623, 870 Cost ------361,626 $56,373 21, 154 1, 707 22,267 14,588, 482 Maintenance: Appropriated------...... 20, 000 27, 000 30, 000 33, 700 34, 000 144, 700 Cost_----10, 099 24,352 21,297 47,605 36, 128 141, 415

Other new work data: Unobligated balance, fiscal year ending June 30,1955 $35, 388 Unobligated balances available for succeeding fiscal year ending June 30, 1956------_ ------35, 388

13. SOUTH PLATTE RIVER, COLO. Location. The flood control improvements included in this project are located along the South Platte River, all within the limits of the State of Colorado. 790 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Existing project. The project for flood control and related pur- poses on the South Platte River, Colo., provides for a dam and reser- voir on the South Platte River at the mouth of Plum Creek, about 8 miles southwest of Denver; a continuous agricultural levee system along both banks of the river from below the dam to the south city limits of Denver, and from the north city limits of Denver to 1 mile below the mouth of St. Vrain Creek; and channel improvements and intermittent levees on the South Platte River between St. Vrain Creek and Fort Morgan, Colo. The project was authorized by the Flood Control Act approved May 17, 1950, substantially in accordance with the recommendations of the Chief of Engineers in House Document 669, 80th Congress, 2d session, which contains the latest published map of the South Platte River Basin. The act authorized $26,300,000 for partial accomplishment of the work described in House Document 669. Included are the following projects:

Estimated Federal cost

Chatfield Reservoir, Colo______1955 1 $34, 200, 000 Levees and channel improvements, Chatfield Reservoir to Fort Morgan, Colo_ 1954 2 31, 800, 000

1 Details presented in individual report. 2 To be restudied.

14. CHATFIELD RESERVOIR, SOUTH PLATTE RIVER BASIN, COLO. Location. The Chatfield Reservoir Project, Colo., is located on the South Platte River in northeast Colorado, approximately 8 miles southwest of the city of Denver. Existing project. The project consists of an earthfill dam approxi- mately 132 feet high with a gross storage capacity of 200,000 acre-feet. This project is a unit of the plan of improvement for the main stem and certain tributaries of the South Platte River for flood control and allied purposes. The project was authorized by the Flood Control Act approved May 17, 1950, substantially in accordance with the recommendations of the Chief of Engineers in House Document 669, 80th Congress, 2d session. The act authorized $26,300,000 for partial accomplishment of the work described in House Document 669. The estimated cost for new work (1955) is $34,200,000. Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. Operations and results during fiscal year. Preliminary contacts, office studies, minor fieldl investigations and cooperatives studies with Federal, State, and local agencies were initiated. A preliminary gross appraisal of the real estate was completed. The total cost of new work during the fiscal year was $9,887. Conditionat end of the fiscal year. Preliminary planning was initi- ated. The total cost incurred to the end of the fiscal year was $9,887. FLOOD CONTROL-OMAHA, NEBR., DISTRICT 791

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated ------$11, 000 $11, 000 Cost------...... ------..._ 9,887 9,887

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 __ ---- $1, 113 Appropriated for succeeding fiscal year ending June 30, 1956___ 10, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956 __-- -- 11, 113 Estimated additional amount needed to be appropriated for completion of existing project ------_ 34, 179, 000

15. SOUTH PLATTE RIVER LEVEES AND CHANNEL IMPROVEMENTS, CHATFIELD RESERVOIR TO FORT MORGAN, COLO. Location. The flood control improvements included in this project are located along the South Platte River, all within the limits of the State of Colorado. Existing project. The project for flood control on the South Platte River, Colo., provides for a continuous levee system along both banks of the river from below the authorized Chatfield Dam to the south city limits of Denver, and from the north city limits of Denver to 1 mile below the mouth of St. Vrain Creek; and channel improvements and intermittent levees on the South Platte River between St. Vrain Creek and Fort Morgan, Colo. This project is a unit of the plan of improve- ment for the main stem and certain tributaries of the South Platte River for flood control and allied purposes. The project was author- ized by the Flood Control Act approved May 17, 1950, substantially in accordance with the recommendations of the Chief of Engineers in House Document 669, 80th Congress, 2d session. The act authorized $26,300,000 for partial accomplishment of the work described in House Document 669. The estimated cost for new work (1954) is $31,800,000. Local cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended by the Flood Control Act approved Decem- ber 22, 1944, applies. Operations and results during fiscal year. No work has been ini- tiated under this project. Conditions at end of fiscal year. No work has been initiated.

16. MISSOURI RIVER AGRICULTURAL LEVEES, SIOUX CITY, IOWA, TO THE MOUTH (SIOUX CITY, IOWA, TO RULO, NEBR.) Location. The Missouri River rises in southwestern Montana and flows generally southeasterly 2,464.4 miles across or along seven States to a confluence with the Mississippi River 17 miles above St. Louis, Mo. The project covers only the portion from Sioux City, Iowa, to the mouth or approximately 760 miles of the river. Existing project. The plan of improvement provides for a series of levee units and appurtenant works along both sides of the Missouri River from Sioux City, Iowa, to the mouth, for the protection of agri- 792 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 cultural lands and small communities against floods. The estimate of cost for that portion of the project from Sioux City, Iowa, to Rule, Nebr. (1955) is $48,000,000, of which $42,800,000 is Federal cost for construction and $5,200,000 is local cost for lands and damages. This cost includes funds necessary to connect one unit of this project to the authorized Hamburg, Iowa, project on the Nishnabotna River. The existing project was authorized by the following Flood Control Acts:

Acts Work authorized Documents 1

Aug. 18,1941 Levees along both sides of the river from Sioux City H. Doc. 821, 76th Cong., 3d sess. to Kansas City. Dec. 22, 1944 Extended project from Kansas City to the mouth and H. Doc. 475, 78th Cong., 2d sess.; provided for increased protection. S. Doc. 191, 78th Cong., 2d sess.; S. Doec. 247, 78th Cong., 2d sess.

1 Contain the latest published maps of Missouri River Basin. Local cooperation. Section 3 of the Flood Control Act approved June 22, 1936, as amended by the Flood Control Act approved De- cember 22, 1944, applies. Units on which construction has been completed have been turned over to local interests and local coopera- tion requirements are being fulfilled in accordance with formal assurances previously furnished. Local interests have either fur- nished, or have indicated that they will fuinish, assurances of the required cooperation for units that are programed for construction. Operations and results during the fiscal year (regular funds). Preparation of revised design memoranda for units R-616 and L-614 was continued. Surveys and borings in connection with the prepara- tion of a design memorandum for unit R-520 were initiated. The total cost of new work during the fiscal year was $126,222. Condition at end of the fiscal year. Construction of the project was initiated in fiscal year 1948 and is scheduled for completion in 1968. Construction is complete on all units for which construction funds have been appropriated. Engineering and design on the entire proj- ect is about 66 percent complete. The entire project is approximately 29 percent complete, based on the present approved estimate of cost. The total Federal cost of new work to the end of the fiscal year was $13,992,184, all from regular funds. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated- ..... $1, 615, 000 $768, 100 $179, 000 $25, 000 $50, 000 $13, 992, 450 Cost------2, 593, 247 720, 331 848, 240 550, 335 126, 222 13, 992, 184

Other new work data: Unobligated balance, fiscal year ending June 30, 1955_-- $266 Appropriated for succeeding fiscal year ending June 30, 1956 -- 40, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------__ 40, 266 Estimated additional amount needed to be appropriated for completion of existing project--_----- 28, 767, 550 FLOOD CONTROL-OMAHA, NEBR., DISTRICT 793

17. OTHER AUTHORIZED FLOOD CONTROL PROJECTS

For last Cost and expenditures to full report, June 30, 1955 Estimated Name of project see Annual amount Reportrequired Construction Operation and to complete for- maintenance

Battle Creek, Elkhorn River, Nebr ...... ------1 1952 ...... $353, 000 Belle Fourche, Cheyenne River, S. Dak .__--_ 1940 $37, 410 .-.- ______-- (2) Big Bend Reservoir, Missouri River Basin .- -__ 1952 73, 000, 000 Boulder, Colo .. 1952 ._...... 580, 000 Castlewood Dam and Reservoir, Cherry Creek and tributaries, Colo-_ _-______1943 56, 721 ..------(3) Council Bluffs, Iowa (act of 1936) ------1939 325 (2) Council Bluffs, Iowa (act of 1944) --- 1954 2, 557, 680 ---- (4))------Denison, East Fork of Boyer River, Iowa ___---_ 1949 4, 300------(3) Disaster operation "Snowbound" __-___-- -___ 1952 7, 005, 939 -__-----__ - (4) Erie, Colo_ __ 1952 ------. 65, 000 Giles Creek, Elkhorn River, Nebr -- -- 11952 __------520, 000 Herreid, Spring Creek, S. Dak_ 1954 50, 216--__-----__--_ (4) Missouri River, Niobrara, Nebr------_ ---- 1945 99, 370 $5, 633 (4) Morrison, Bear Creek, Colo -- 1950 30, 000 (5) Nishnabotna River at Hamburg, Iowa ...-- -- _ 1948 236, 000 ------(4) Omaha, Nebr_ 1954 5, 896, 374 -.-.-....---- (4) Pierce, Elkhorn River, Nebr_- - 1 1952 __------_------... 225, 000 Platte River near Schuyler, Nebr __ 1948 74, 940 -- (4))------__ Sioux City. Missouri River Basin, Iowa ...... 1950 1, 215 1______, 298, 785 Waterloo, Elkhorn River, Nebr ._-...... _ _.__ _ 11952 -- ____------_-_113, 000 West Point, Elkhorn River, Nebr-_----.___-_ 1 1952 .------..------....------165, 000

1 Reported in 1952 as "Elkhorn River Basin, Omaha district." 2 Completed as a Public Works Administration project. 3 Inactive. . 4 Project complete. Deferred for restudy.

18. INSPECTION OF COMPLETED WORKS Inspections of completed flood protection projects constructed with Federal funds in the Omaha District are made in accordance with Federal regulations to assure that the works are being properly op- erated and maintained and are in readiness to perform their mission at all times. Inspection of completed works during the fiscal year 1955 consisted of inspection of the following local flood protect ion projects:

Project Inspection cost

Spring Creek At Herreid, S. Dak_------$50 Belle Fourche, Cheyenne River, S. Dak---..------...... ---...... ------.... 110 Fall River Basin, S. Dak. (Hot Springs channel improvement)------_ _------.125 City of Aurora, Westerly Creek, Colo _--____ -__--... -...... - -___- ..------156 Platte River Basin near Schuyler, Nebr ...... ------40 Omaha, Missouri River Basin, Nebr ------650 Council Bluffs, Missouri River Basin, Iowa .....- ...... ------375 Missouri River agricultural levees_ ------_ 1, 226

Total inspection cost-.------..------...... ------. 2, 732

The total cost during the fiscal year was $2,732. 794 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

Maintenance: Appropriated-- ---...... ---.. $1, 700 ....------$2, 000 $3, 000 $3, 000 $9, 700 Cost___------234 $1, 466 2, 000 3, 000 2, 732 9, 432

19. FLOOD CONTROL WORK UNDER SPECIAL AUTHORIZATION

Emergency bank protection (Sec. 14 of the 1946 Flood Control Act). Minor completion items on the pile dike protecting the River Road at Sioux City, Iowa, were completed at a total cost of $589.

Cost and financial summary

Fiscal year ending June 30 Total to June S30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated ...... - -$5, 905------$85, 000 -$7, 019 -$3, 209 $1, 099, 986 Cost------6, 972 --- 27, 981 46, 202 589 1,099, 986

S m all flood control projects not specifically authorized by Congress (Sec. 212 of the 1950 Flood Control Act). Costs were incurred on the following projects during the fiscal year: Buffalo Creek, vicinity of Scranton, N. Dak. Preparation of a project report on the flood problem along Buffalo Creek. Work was initiated in fiscal year 1953 and continued during fiscal year 1955 at a cost of $950. Aurora, Westerly Creek, Colo. Construction of a detention dam and reservoir for the flood protection of Aurora, Colo. Work was initiated in fiscal year 1953 and completed during fiscal year 1955. The total cost incurred during the fiscal year was $3,464. Union Creek, S. Dak. Preparation of a project report on the flood problem along Union Creek. Work was initiated in fiscal year 1955. Due to the inability of local interests to provide the required local cooperation, work on the project has been suspended. Total Federal cost incurred during the fiscal year was $695. The total cost incurred during the fiscal year was $5,109. FLOOD CONTROL---OMAHA, NEBR., DISTRICT 795

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated...... ------$35, 500 $152, 500 $14, 716 $2, 000 $204, 716 Cost ...... ------5,661 11,623 180,580 5,110 202, 974

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 $1, 742 Unobligated balances available for succeeding fiscal year ending June 30, 1956------1, 742 Emergency flood control activities (Sec. 210 of the 1950 Flood Con- trol Act and supplemental authorizations). The following work was performed during the fiscal year: Repair of damage to privately owned levees caused by floods in June 1.954 on the Little Sioux River and Big Sioux River in Iowa, the Ver- million River in S. Dak., and along Omadi Ditch in Nebraska. Com- pletion of repairs to levees, sewers, and drainage structures in Omaha and Council Bluffs, damaged by the 1952 flood. The total cost of work performed during the fiscal year was $299,056.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated-_... _.- $464, 094 $4, 974, 225 $5, 763, 975 $273, 000 $157, 450 $14, 270, 472 Cost.------243, 878 4, 864, 841 4, 796, 536 1, 468, 276 299, 056 114, 269, 218

1 In addition, the sum of $40,838 was expended from contributed funds and $100,000 under authority of Sec. 9 of the 1936 Flood Control Act.

20. EXAMINATIONS AND SURVEYS Flood control studies: Preliminary examinations and survey re- ports were under preparation by hired labor at a cost during the fiscal year of $56,100. Funds remaining, amounting to $86, plus the allot- ment of funds for fiscal year 1956, will be applied during the fiscal year ending June 30, 1956 to the continuation of work on survey re- ports presently assigned to the district.

21. COLLECTION AND STUDY OF BASIC DATA Storm studies, hydrologic studies, and sediment studies, all of minor scope were continued during the fiscal year. Studies were confined to analysis of basic data for tributary streams and their basins. The cost of this work was $4,802.

FLOOD CONTROL IMPROVEMENTS IN THE GARRISON, N. DAK., DISTRICT

This district comprises a portion of northwestern, southwestern, and south central North Dakota, a small portion of northwestern South Dakota, northeastern Wyoming, and southeastern Montana. It includes the watershed of the Missouri River and its tributaries between the mouth of the Yellowstone River (N. Dak.) and the North Dakota-South Dakota State line and that portiton of the James River Basin lying in North Dakota.

IMPROVEMENTS Flood control Flood control-Continued Page Page 1. Missouri River Basin, Gar- 7. Inspection of completed proj- rison District- _ 797 ects- 803 2. Garrison Reservoir, Missouri 8. Flood control work under River Basin, N. Dak_ .. 798 special authorization_ 803 3. Mandan, N. Dak____ 801 4. Lower Heart River, N. Dak_ 802 General investigations 5. Marmarth, N. Dak ...... 802 9. Examination and surveys___ 805 6. Other authorized flood con- 10. Collection and study of basic trol projects______803 data- 805

1. MISSOURI RIVER BASIN, GARRISON DISTRICT Location. The flood control improvements included in this project are located on and along the Missouri River and several of the prin- cipal tributaries of the Missouri River. Existing project. The general comprehensive plan for flood con- trol and other purposes in the Missouri River Basin provides for levees along the Missouri River between Sioux City, Iowa, and the mouth and reservoirs located on the main stem of the Missouri River and on the tributaries for control of flood flows at the dam sites. The existing project was authorized by the following flood control acts:

Acts Work authorized Documents 1

June 28,1938 Adopted general comprehensive plan for Missouri Flood Control Committee, Dec. 1, River Basin and authorized $9,000,000 for initiation 75th Cong., 1st sess. and partial accomplishment. Aug. 18,1941 Modified the General comprehensive plan to include H. Doc. 842, 76th Cong., 3d sess. Harlan County Dam and Reservoir on the Repub- lican River, Nebr. and authorized $7,000,000 for additional expenditure. Dec. 22,1944 Expanded the general comprehensive plan for the H. Doc. 475, 78th Cong., 2d sess.; Missouri River Basin and authorized $200,000,000 S. Doc. 191, 78th Cong., 2d sess.; additional expenditure. S. Doc. 247, 78th Cong., 2d sess. July 24,1946 Authorized an additional expenditure of $150,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. May 17, 1950 Authorized an additional expenditure of $250,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. Sept. 3,1954 Expanded the general comprehensive plan for the H. Doc. 642, 81st Cong., 2d sess.; Missouri River Basin and authorized $217,710,000 H. Doc. 549, 81st Cong., 2d sess. additional expenditure.

1 Contain the latest published maps of Missouri River Basin. 797 798 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 Included in the comprehensive plan are the following projects in the Garrison district:

Estimated Project Federal cost

Garrison Reservoir, N. Dak....------$274, 000, 000

Operations during the fiscal year. The operations performed dur- ing the fiscal year 1955 for projects on which work was underway are given in the individual reports. Under sections 7 and 9 of Public Law 534, Flood Control Act, approved December 22, 1944, the Corps of Engineers is responsible for detailed scheduling of operations of storage capacity reserved for or assigned to flood control in reser- voirs constructed by the Bureau of Reclamation, as well as those constructed by the Corps of Engineers. The costs during the fiscal year under this heading were $10,251. A balance of $879 is available for further work in connection with the scheduling of flood control reservoir operations.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated $6, 500 $3, 000 $3, 000 $12, 000 $11, 000 $35, 500 Cost ...... ------6, 500 875 1, 997 14, 998 10, 251 34, 621

2. GARRISON RESERVOIR, MISSOURI RIVER BASIN, N. DAK. Location. The Garrison dam site is located on the Missouri River in McLean and Mercer Counties, N. Dak., about 11 miles south of Garrison, N. Dak., and 9 miles west of Coleharbor, N. Dak. The site is 1,455.0 (1941 adjusted river miles) miles above the mouth of the river and 77 miles above Bismarck, N. Dak. Existing project. The project plan provides for the construction of a dam and reservoir for flood control, irrigation, navigation, hydro- electric power, and other purposes. The dam will be a rolled earthfill structure with a crest length of 11,300 feet and a maximum height of 210 feet. The spillway will be controlled by 28 tainter crest gates, 29 feet high and 40 feet long, located in the east abutment. Reinforced concrete outlet works, containing 5 power tunnels and 3 flood-control tunnels, will be located in the west abutment. A hydroelectric power- generating plant will be located adjacent to the outlet works. The reservoir will have a gross storage capacity of 23,000,000 acre-feet for multiple purpose use including 4,900,000 acre-feet as dead storage. The existing project was authorized by the Flood Control Act ap- proved December 22, 1944 (Public Law 534, 78th Cong., 2d sess.), as part of the general comprehensive plan for flood control and other FLOOD CONTROL--GARRISON, N. DAK., DISTRICT 799 purposes in the Missouri River Basin. The estimated cost for the initial project, which includes initial power installation of three 80,000-kilowatt units and initial protection in the vicinity of Willis- ton, N. Dak., but is exclusive of diversion into the Dakotas, is $274,- 000,000 (July 1955). The estimated cost for power units 4 and 5 is $20,000,000 (July 1955). Local cooperation. Section 2 of the Flood Control Act approved June 28, 1938, applies. ($24,000 contributed by local interests specifi- cally for the construction of the New Town School.) Operations and results during the fiscal year. Surveys, founda- tion explorations, and engineering studies were continued throughout the fiscal year. Design memoranda were completed for Little Muddy Creek bridge, section IV of east abutment grouting, surfacing of road over dam and adjacent parking areas, tree planting, and additional access roads. Plans and specifications were completed for Little Muddy Creek bridge, approaches to Sanish Bridge, stage II, schedules B, C, D, and E of reservoir clearing, sections III and IV of east abut- ment grouting, spillway stilling basin, tree planting, and 12.5-kilovolt connection to spillway. Negotiations were initiated, continued, or completed for a number of utilities, roads, railroads, and other reloca- tion items. Construction features completed during the fiscal year included: relocation of Indian reservation roads; paving of U. S. 83 over the Snake Creek subimpoundment structure; relocation of Soo Railroad tracks over the Snake Creek embankment; relocation of N. W. Bell Telephone facilities in McLean and Mountrail Counties; relocation of Indian Agency utilities; relocation of Indian Agency buildings; fabrication of gates for the conduit under Snake Creek embankment; clearing-stage II, schedule A of reservoir clearing; channel for flows from relief wells; section II of east abutment grouting; trash racks; storage batteries; two-300 ton cranes; oil circuit breakers; and a number of items of permanent operating equipment. In addition to work completed, the following work items were ini- tiated or carried on throughout the year: McKenzie County roads, Williams County roads; North Dakota Highways (contract No. 1) ; Sanish Bridge superstructure; schedules B, C, D, and E of stage II of reservoir clearing; spillway structure and gates; lot 3 of concrete aggregates; powerhouse and switchyard; stage V (final) of the main embankment; section III of east abutment grouting; spillway stilling basin; spillway monorail hoist; penstocks and surge tanks; replace- ment of wildlife habitat; turbines; generators; main control switch- boards; station switchgear and transformers; 15-kilovolt switchgear and generator leads; carrier current equipment; main and auto trans- formers; oil filled pipe cable system; tree planting; 12.5-kilovolt con- nection to spillway; a number of items of permanent operating equip- ment; and construction facilities. Preparation of engineering data, tract maps, appraisal reports, oil impairment estimates, court actions for acquisition of lands in the reservoir area were carried on through- out the fiscal year. The total cost of new work during the fiscal year was $31,867,691, from regular funds.

363037-55-vol. 2- 51 800 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Operation and maintenance. The reservoir, in this first year of partial operation, was utilized for flood control, as an aid to naviga- tion on the Missouri River, and for storage. Releases were used to maintain navigation, produce hydroelectric power at downstream plants, and serve downstream municipalities in the interest of water supply and stream sanitation. Pool was used to some extent for recreational purposes, boating, fishing, etc. Total releases from the reservoir amounted to approximately 14,883,000 acre-feet, which is about equal to a mean average annual flow of 20,400 cubic feet per second. In addition to nearly full operation of the intake structure and partial operation and maintenance of the reservoir, dam, tunnels, and Snake Creek embankment, a partial program of sediment studies, a study of experimental releases, and a basin wide reservoir regulation study was accomplished. A manual, Rules and Regulations Govern- ing Public Use of Garrison Reservoir Area, was published. Total cost of operation and maintenance for the fiscal year was $122,987. Condition at end of fiscal year. In addition to completion of con- tract plans and specifications listed under operations and results dur- ing the fiscal year, design memoranda, and preparation of plans and specifications are under way for Williams County roads-bridges, protective works-Williston, protective works-Lewis and Clark irriga- tion district, reservoir clearing-stage III, east abutment grouting-sec- tion IV, roads and parking areas, and permanent operating equipment. Negotiations, plans, and specifications are in progress for a number of relocation features. Preliminary work has been initiated for de- sign memoranda on power units 4 and 5. A program of sedimenta- tion studies and degradation investigations is being continued. Field investigations and laboratory tests for determination of foundation consolidation, action of structures, and embankment materials are in progress. Permanent work on the initial project is approximately 85 percent complete. The percentage of completion of major features at the end of the fiscal year is as follows: Percent Features complete Lands and damages ------87 Relocations------60 Roads------87 Railroads------96 Cemeteries, utilities, structures_------__ 26 Reservoir and pool preparation__------62 Dam------91 Power plant------91 Powerhouse------92 Turbines and generators______------_90 Switchyard, accessory, and miscellaneous______-- - ______- 91 Roads, railroads, and bridges ------67 Recreation facilities------20 Buildings, grounds, and utilities____------. 97 Permanent operating equipment______- 49 Engineering and design----.- - 88 Total cost of new work to June 30, 1955 was $234,795,220 from regu- lar funds, and $24,000 from contributed funds. The total cost of operation and maintenance to the end of the fiscal year was $122,987. FLOOD CONTROI---GARRISON, N. DAK., DISTRICT 801

Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated-.-.-.---$30, 969, 000 $37, 083, 700 $30, 848, 000 $27, 500, 000 $30, 000,000 1 $236, 680, 700 Cost--.....------29, 045, 251 25, 801, 808 32, 125, 643 42, 699, 677 31,867, 691 234, 795, 220 Maintenance: Appropriated------...... ------122, 500 122, 500 Cost_------122, 987 2 122, 987

1 Exclusive of $24,000 contributed funds. Includes loan of $5,000,000 subject to repayment. 2 Excess of cost over amount appropriated due to inclusion of retroactive pay increase. Other new work data: Unobligated balance, fiscal year ending June 30, 1955_ ------$341, 183 Appropriated for succeeding fiscal year ending June 30, 1956 -. 20, 100, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------20, 441, 183 Estimated additional amount needed to be appropriated for completion of existing project------17, 219, 300

3. MANDAN, N. DAK. Location. This project is located on both banks of the Heart River at Mandan,N. Dak. Existing project. The plan of improvement provides for the con- struction of levees and appurtenant works along the left bank of the Heart River for the protection of municipal areas and along the right bank of the Heart River for the protection of the State Training School. The existing project was authorized in the Flood Control Act ap- proved July 24, 1946. (See H. Doc. 294, 79th Cong., 1st sess.), by the Third Deficiency Appropriation Act of 1949, approved October 10, 1949, and as modified by the Flood Control Act approved May 17, 1950. The estimated cost of improvement (July 1955) is $691,000, of which $552,000 is Federal cost for construction and $139,000 is local cost for lands and damages. Local cooperation. Local interests have met the requirements of local cooperation in connection with the levee project. Assurances in connection with interior drainage facilities were furnished by letter dated June 2, 1955. Operation and results during the fiscal year. Preparation of de- sign memorandum and plans and specifications are underway for in- terior drainage facilities. The total cost during the fiscal year was $3,052. Condition at end of fiscal year. Construction of levees and appur- tenant facilities is complete. Operation manual and record drawings for this portion of the project are also finished. Design memoran- dum ar l plans and specifications for interior drainage are about 85 percent complete. 802 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated _ _...... -...... _ - -$71, 556 $71,556 $551,700 Cost- - - - $22,162 $1,902 $1,467 ...... _ .... 3,052 483,196

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 $68, 504 Unobligated balances available for succeeding fiscal year: ending June 30, 1956------68, 504

4. LOWER HEART RIVER, N. DAK. Location. This project is located on both banks of the Heart River in the 14-mile reach extending upstream from the mouth of the river. It is in the vicinity of Mandan, N. Dak. Existing project. The plan of improvement provides for raising the present Mandan levees, provides a closure levee extending from U. S. Highway 10 to high ground upstream (west) from Mandan, and provides for channel improvement and levee construction down- stream (east) of Mandan. Improvement will increase protection to the city of Mandan and the State Training School and will provide protection for two additional areas which are rural in development. The project was authorized in the Flood Control Act approved September 3, 1954. (Public Law 780, 83d Cong., 2d sess.) The esti- mated cost of improvement (July 1955) is $2,396,000, of which $1,870,000 is Federal cost of construction and $426,000 is local cost. Local cooperation. Local officials have indicated that assurances of local cooperation will be forthcoming. Operation and results during the fiscal year. Project was author- ized September 3, 1954. No funds were provided. No work was accomplished during the fiscal year. The total cost during the fiscal year was zero. Condition at the end of the fiscal year. No work has been initiated.

5. MVIARMARTH, N. DAK. Location. On the left bank of the Little Missouri River at Mar- marth, N. Dak. Existing project. The plan of improvement provides for the rais- ing and extending of the present inadequate levees. Approximately 11,000 feet of levee are to be built which will provide the city of Mar- marth with virtually complete protection against floods. The project was authorized in the Flood Control Act approved September 3, 1954 (Public Law 780, 83d Cong., 2d sess.) The esti- mated cost of improvement (July 1955) is $245,000, of which $240,000 is Federal cost of construction and $5,000 is local cost principally for lands and damages. FLOOD CONTROL--GARRISON, N. DAK., DISTRICT 803

Local cooperation. Local interests have indicated that require- ments of local cooperation will be met. The city already owns con- siderable portion of the necessary rights-of-way. Operation and results during the fiscal year. Project was authorized September 3, 1954. No funds were provided. No work has been accomplished during the fiscal year. The total cost, during the fiscal year was zero. Condition at the end of the fiscal year. No work has been initiated.

6. OTHER AUTHORIZED FLOOD CONTROL PROJECTS

For last Cost and expenditures to Estimated full report, June 30, 1955 amount Name of project see Annual required Reportrequired for- New work Maintenance to complete

1. Jamestown Reservoir, N. Dak-----...... 1950 $40, 000 . . (1)

I Reservoir constructed by the Bureau of Reclamation.

7. INSPECTION OF COMPLETED PROJECTS Inspection of completed works during the fiscal year in the Gar- rison district consisted of inspection of the following local flood- protection project:

Inspection Project cost

Mandan levee, Mandan, N. Dak___...... ___ __-...__-...... $218

The total cost during the fiscal year was $218. The unexpended balance of $50 is available for further work under this heading.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

Maintenance: Appropriated___-__ -$500 - $500 $300 $100 $1,400 Costrop- ...... 230 $249 106 547 218 1,350

8. FLOOD CONTROL WORK UNDER SPECIAL AUTHORIZATION Snagging and clearing of navigable streams and tributaries in the interests of flood control (sec. 13 of the 1946 Flood Control Act). Funds were allotted in May 1955. Office studies to determine extent of clearing needed on the Heart River at Belfield, N. Dak. were initiated. Cost for the fiscal year was $30. Unexpended balance of $470 will be utilized to complete studies and submit report. 804 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated------...... ------...... $500 $500 Cost------...... -----...... ------30 30

Other new work data: Unobligated balance, fiscal year ending June 30, 1955------$470

Small flood control projects not specifically authorized by Congress (sec. 212 of the 1950 Flood Control Act). Funds were allotted in December 1954 for investigation and report on feasibility of flood control on Beaver Creek at Linton, N. Dak. Preparation of report was completed during the fiscal year. Cost of work during the fiscal year was $6,019. Balance of funds unexpended, $1,881 can be profitably utilized to initiate preparation of plans and specifications for this project.

Cost and financial summary

Fiscal year ending June 30 Total toJune 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated...... ------$7,900 $7,900 Cost------...... ------6,019 6,019

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 _------_- $1,881 Unobligated balances available for succeeding fiscal year ending June 30, 1956_------1,881

(Sec. 210 of the 1950 Flood Control Act and supplemental author- izations). Work was performed during the fiscal year at the following costs. Flood fighting and rescue work------$853 Advance preparation for flood emergencies------_ 2,426 Total------3,279

Balance of $99 can be profitably expended for continuance of this work. Cost and financial summary

Fiscal year ending June 30 Total toJune 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated------...... $141, 30 $10, 000 $80, 000 --- $3, 298 $384, 506 Cost------...... - 136, 972 14, 558 77, 068 $2, 931 3, 279 384, 407 GENERAL INVESTIGATIONS-GARRISON, N. DAK., DISTRICT 805

9. EXAMINATION AND SURVEYS-FLOOD CONTROL STUDIES The cost of work on examinations and surveys for the fiscal year was $9,929. The unexpended balance on June 30, 1955, was $1,071. In addition to this unexpended balance, funds in the amount of $22,000 can be profitably expended for the continuation of work on examinations and surveys presently assigned to this office.

10. COLLECTION AND STUDY OF BASIC DATA Preparation of nonprofit studies pertaining to relationship between rainfall and resulting runoff, analysis of past floods and related hydro- logic studies were completed at a cost of $805. Balance unexpended of $1,047 is available for further work in this category.

IMPROVEMENT OF RIVERS AND HARBORS IN THE FORT PECK, MONT., DISTRICT This district comprises all of Montana east of the continental divide except the Little Missouri River watershed; the small portions of western North Dakota embraced in the watersheds of Yellowstone River, and Big Muddy Creek; and northern Wyoming embraced in the drainage basin of the Missouri River and tributaries above the mouth of the Yellowstone River, inclusive.

IMPROVEMENTS Navigation Flood control-Continued Page Page 1. Missouri River at Fort Peck, 8. Greybull, Yellowstone River, Mont___---___-- 807 Wyo_------815 2. Other authorized navigation 9. Other authorized flood con- projects------810 trol projects------816 control 10. Inspection of completed proj- Flood ects- - - 816 3. Missouri River Basin, Fort 11. Flood control work under Peck district------810 special authorization ----- 817 4. Havre Milk River, Mont___ 811 5. Saco, Mont ------812 General investigations 6. Billings, Yellowstone River, Mont_ _ 813 12. Examinations and surveys.. 818 7. Sheridan, Yellowstone River, 13. Collection and study of basic Wyo ------814 data------818

1. MISSOURI RIVER AT FORT PECK, MONT. Location. The site of the Fort Peck Reservoir is in the Missouri River Valley in McCone, Valley, Garfield, Phillips, Petroleum, and Fergus Counties, Mont. The dam site is approximately 11 miles above the mouth of the Milk River in sections 14, 15, 16, 21, and 22, T. 26 N., R. 41 E. The west (left) abutment is in Valley County and the east (right) abutment is in McCone County. Nearest towns are Glasgow, 17 miles northwest, and Nashua, 9 miles north. Existing project. The project provides for construction of an earth dam and powerplant for impounding water for the improvement of navigation on the Missouri River, Sioux City to the mouth, for the production of power, and for flood control, irrigation and related uses, as a unit in the main stem system of reservoirs. The estimate of cost for new work (July 1955) is $159,100,000. Detailed data re- garding the project are as follows: Description Location, miles above mouth of Missouri River--- ______---1, 868. 7 Concrete spillway in right abutment, discharge capacity (second- feet) ------250, 000 Height of main dam above streambed (feet) __- ____250. 5 Height of crest stone above streambed (feet) ------250. O0 Elevation of crest stone (feet, mean sea level) ------2, 280. O0 807 808 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Description Tunnels for releasing water from reservoir (4), diameter (feet) ... 24'8" Powerplant-initial installation, one 35,000-kilowatt unit and one 15,000-kilowatt unit (kilowatts) ------50, 000 Powerplant--present installation, two 35,000-kilowatt units and one 15,000-kilowatt unit (kilowatts) ------85, 000 Powerplant-installation presently planned: two 35,000-kilowatt units, one 15,000-kilowatt unit and two 40,000-kilowatt units (kilowatts)------165,000 Maximum pool level (feet, mean sea level) ___------_------2, 250 Normal pool level (feet, mean sea level) ------2, 246 Crest length of dam (feet) ------21, 026 Maximum storage capacity (acre-feet) ------19, 412, 000 Maximum surface area of reservoir (acres) ------245, 000 Maximum length of reservoir (miles) ------189 Clear width of reservoir (miles) ------16 Normal operating storage capacity (acre-feet) ------18, 400, 000 Total construction cost of project (estimated) (July 1955) ------159, 100, 000 Annual operation and maintenance cost (estimated) (July 1955)... 590, 000 Date construction started, Oct. 23, 1933 Date of completion, June 30, 1961 (estimated) Datum-mean sea level (1929 adjustment, U. S. Coast and Geodetic Survey).

The existing project was authorized by the following acts:

Acts Work authorized Documents

Aug. 30,19351 Construction of earth dam__..... ______IH.Doc. 238, 73d Cong., 2d sess. May 18,1938 Completion, maintenance, and operation of a hydro- (Specified in act.) electric powerplant, subject to certain provisions contained in the act respecting the transmission and sale of electric energy. This act also authorizes the installation of additional power generating facilities by the Secretary of War when deemed necessary in the judgment of the Bureau of Rec- lamation. Dec. 22,19443 Modified authorization to provide for full multiple H. Doc. 475, S. Doc. 191 and S. purpose operation. Doc. 247, all of 78th Cong., 2d sess. June 3, 19484 Payments to be made to school districts serving proj- (Specified in act.) ectas reimbursement for educational facilities (in- cluding transportation to and from school) to pupils who are dependents of persons engaged in the construction, operation, and maintenance of the project.

1 Included in Public Works Administration program in 1933. 2 Pub. Law 529, 73d Cong., 3d sess. 8Pub. Law 534, 78th Cong., 2d sess. 4 Pub. Law 586, 80th Cong.. 2d sess. Maps showing transportation facilities, power-market area, power- plants, etc., are contained in Senate committee print, 75th Congress, 2d session. Local cooperation. None required. Terminal facilities. None. Operation and results during the fiscal year. New work accom- plished during the fiscal year included continuing the contract for the preparation of final designs and plans and specifications for the second powerplant; and miscellaneous hired labor planning and construction work on the first powerplant, dam, tunnels, spillway, recreational fa- cilities, and planning and exploratory work for the second powerplant. The total cost of new work was $225,315, all regular funds. Operations and maintenance: The reservoir was operated through- RIVERS AND HARBORS---FORT PECK, MONT., DISTRICT 809

out the fiscal year for the maintenance of navigation on the Missouri River, and incidental purposes of flood control and hydroelectric power production. Releases for these purposes also served the needs for water supply and sanitation along the river below the dam. Total releases from the reservoir amounted to about 8,732,100 acre-feet, equivalent to a mean annual flow of about 12,000 cubic feet per second. The gross electric energy produced by the three generating units amounted to 554,485,000 kilowatt-hours. The net electric energy generated, exclusive of power for station use, was 553,435,300 kilowatt- hours. In addition to the operation and maintenance of the reservoir, dam, spillway, tunnels, powerplant, operators' village facilities, etc., a program of sediment studies and preliminary work of locating and raising the stop logs for inspection of the intake works was accom- plished. The total cost of operation and maintenance during the fiscal year amounted to $716,143. Reimbursement from the Bureau of Reclamation for the pro rata share of the cost of operation and maintenance of the powerplant, reimbursement from other districts for the pro rata share of costs of the sediment studies, reimbursement resulting from furnishing of operators' village facilities, and dis- tribution of pro rata share of camp operation cost to other funds reduced the net cost to $308,833, all regular funds. Condition at end of fiscal year. The status of the existing project as a whole is 84 percent complete. The major items of work remain- ing to be completed are the second powerplant and the permanent operators' quarters. Work was started in October 1933 and is sched- uled for completion in June 1961; however, all work except the second powerplant and the permanent operators' quarters is scheduled for completion by the end of November 1955. Dam: Clearing and grubbing, stripping the base of the dam, con- struction of sheet piling cutoff wall, the rock and gravel toes, the hydraulic fill, raising the crest of the dam to 2,280.5 feet mean sea level, construction of a bituminous surfaced roadway thereon, and installation of a night lighting system are complete. The following quantities have been placed: Cubic yards Hydraulic fill------122, 178, 000 Rolled fill------3, 450, 288 Gravel at toe of dam__------3, 112,904 Rock at toe of dam------289, 297 Gravel on upstream face of dam ------797, 236 Fieldstone on upstream face of dam ------209, 070 Salvage fieldstone on upstream face of dam------129, 887 Quarrystone on upstream face of dam------454, 198 Salvage quarrystone on upstream face of dam------89, 427 A total of 13,847,287 cubic yards of material has been removed from the spillway channel and 268,625 cubic yards of concrete has been placed in the channel lining; 291,826 cubic yards of concrete have been placed in the bridge, columns, piers, foundations, floor slab, and train- ing wall of the gate structure. Sixteen gates have been erected and the operating equipment installed. Spillway stop logs have been in- stalled as well as the hoist car. The 4 diversion tunnels, having an aggregate length of 25,294 linear feet, and the dam and appurtenant works are complete. 810 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Reservoir: Acquisition of land for the reservoir and dam site areas is complete. A total of 289,009 acres have been acquired of which 119,671 acres were public domain land. Powerplant: The first powerplant and appurtenant works are 99 percent complete. Two 35,000-kilowatt units and one 15,000-kilowatt generating unit are in operation. A preliminary design contract for the second powerplant has been completed and a final design and plans and specifications contract has been initiated. Hired labor planning and exploration work on the second powerplant are being continued. The work remaining to complete the project consists of completing the second powerplant, completion of the permanent operators' quar- ters, and miscellaneous items to complete the first powerplant. The total cost of new work to June 30, 1955, is $132,754,404 of which $56,113,090 was regular funds; $8,650,000 were powerplant funds; $49,521,087 were public works funds; and $18,470,227 were Emergency Relief funds. The total cost of operation and maintenance was $5,117,207 as of June 30, 1955.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated .....------$883, 000 $644, 000 $25, 000 $150, 000 $220, 000 $133, 013, 771 Cost------2, 608, 833 821, 015 282, 721 257, 130 225, 315 132, 754, 404 Maintenance: Appropriated ..------567, 500 490, 000 300, 000 325, 000 294, 000 5, 153, 376 Cost ------520, 925 474, 111 241, 634 394, 829 308, 833 5,117, 207

Other new work: Unobligated balance, fiscal year ending June 30, 1955_ $175, 414 Unobligated balances available for succeeding fiscal year end- ing June 30, 1956______175, 414 Estimated additional amount needed to be appropriated for completion of existing project__------26, 086, 220

2. OTHER AUTHORIZED NAVIGATION PROJECTS

For last Cost and expenditures to Estimated full report, June 30, 1955 amount Name of project see Annual required Report for- Construction Operation and to complete maintenance

Claims for damages, river and harbor work .... ._-$9, 297------(1) Expenditures in connection with disaster opera- tion "Snowbound"______------1949 14, 000 ------(1)

1 Operation completed.

3. MISSOURI RIVER BASIN, FORT PECK DISTRICT Location. The flood control improvements included in this proj- ect are located on and along the Missouri River and several of the principal tributaries of the Missouri River and are located in the States comprising the Missouri River Basin. Ewisting project. The general comprehensive plan for flood con- FLOOD CONTROLr--FORT PECK, MONT., DISTRICT 811

trol and other purposes in the Missouri River Basin provides for levees along the Missouri River between Sioux City, Iowa, and the mouth, and reservoirs located on the main stem of the Missouri River and on the tributaries for control of flood flows at the dam sites. The existing project was authorized by the following Flood Control Acts.:

Acts Work authorized Documents 1

June 28,1938 Adopted general comprehensive plan for Missouri Flood Control Committee Doc. 1 River Basin and authorized $9,000,000 for initia- 75th Cong., 1st sess. tion and partial accomplishment. Aug. 18, 1941 Modified the general comprehensive plan to include H. Doc. 842, 76th Cong., 3d sess. Harlan County Dam and Reservoir on the Repub- lican River, Nebr., and authorized $7,000,000 addi- tional expenditure. Dec. 22,1944 Expanded the general comprehensive plan for the H. Doc. 475, 78th Cong., 2d sess.; Missouri River Basin and authorized $200,000,000 S. Doc. 191, 78th Cong., 2d sess.; additional expenditure. S. Doc. 247, 78th Cong., 2d sess. July 24,1946 Authorized an additional expenditure of $150,000,000 for prosectution of the general comprehensive plan for the Missouri River Basin. May 17, 1950 Authorized an additional expenditure of $250,000,000 for prosecution of the general comprehensive plan for the Missouri River Basin. Sept. 3,1954 Expanded the general comprehensive plan for the H. Doc. 642, 81st Cong., 2d sess.; Missouri River Basin and authorized $217,710,000 H. Doc. 549, 81st Cong., 2d sess. additional expenditure.

1 Contain the latest published maps of Missouri River Basin. Condition, at end of fiscal year. Under sections 7 and 9 of Public Law 534, Flood Control Act approved December 22, 1944, the Corps of Engineers is responsible for detailed scheduling of operations of storage capacity reserved for or assigned to flood control in reservoirs constructed by the Bureau of Reclamation, as well as those constructed by the Corps of Engineers. Cost incurred during the fiscal year was $38,886. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated.... $22, 000 $38, 200 $34, 000 $33, 200 $36, 000 $163, 400 Cost --. - 14, 047 30, 871 32, 768 46, 966 38, 886 163, 538

Note. Excess of cost over amount appropriated is due to inclusion of retroactive pay increase.

4. HAVRE, MILK RIVER, MONT. Location. The work covered by this project is located at Havre and vicinity on Milk River, Mont., 401.8 river miles upstream from its confluence with the Missouri River. Existing project. The plan of improvement provides for the pro- tection of areas subject to flooding in the city of Havre, Mont. The project includes two units, the Bull hook unit and the Milk River unit. The Bull Hook unit consistsof 2 rolled earthfill dams, 1 on Scott Coulee and 1 on Bull Hook Creek, approximately 2,500 feet south of the city; a diversion channel to connect Scott Coulee to Bull Hook Creek just upstream of the dams; a combined discharge and spillway channel to divert flood flows into a coulee emptying into Milk River 812 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

just east of the city; a small diversion dam in this coulee and a spill- way to divert extreme flood flows into a drainage area to the north- east. The Milk River unit consists of a system of levees on both banks of the Milk River along the northern edge of the city, and :provisions for pumping internal drainage and sewage during high water periods. The project was authorized by the Flood Control Act approved December 22, 1944 (S. Doc. 103, 78th Cong., 1st sess.). The current estimated Federal cost (July 1955) is $1,950,000; the estimated local cost (July 1955) is $193,000 for utility modifications, lands, rights-of-way, easements, relocations, and damages. Local cooperation. In addition to the usual requirements for local cooperation as provided by law, local interests are required to move certain buildings, raise the railroad and highway grades and provide structures, move a powerline, and construct fences and road crossings. Local interests have provided all required local cooperation for the Bull Hook unit and have provided assurances of their ability to comply with all requirements for the Milk River unit. Operation and results during the fiscal year. Construction was continued on the Bull Hook unit and plans and specifications for the Milk River unit were completed. The total cost during the fiscal year was $557,783. Condition at end of the fiscal year. Preparation of detailed plans for the project is complete and construction on the Bull Hook unit is approximately 86 percent complete. The total cost to June 30, 1955, was $1,036,161 all regular funds. Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ng fisal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated------...... $10,000 ...... -$348, 000 $400, 000 $500,000 $1, 350, 000 Cost...... ------12, 026 $392 50, 005 326, 373 557, 783 1, 036, 161

Other new work data: Unobligated balance, fiscal year ending June 30, 1955------_ $222, 288 Appropriated for succeeding fiscal year ending June 30, 1956_.... 600, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------822, 288

5. SACO, MONTANA Location. The work covered by this project is located at Saco, Mont. which is on the left bank of Beaver Creek about 33 miles above its confluence with the Milk River. Existing project. The plan of improvement provides for construc- tion of a levee around the town. The work includes 3,394 feet of new levee, the raising of 4,234 feet of existing levee and enlargement of 4,573 feet of existing irrigation embankment and raising of 770 feet of road. The project was authorized by the Flood Control Act of June 22, 1936, and House Document 88, 73d Congress, 1st session. The estimated Federal cost (July 1955) is $116,000; the estimated local cost (July 1955) is $6,000 for relocations, lands and damages. FLOOD CONTROL---FORT PECK, MONT., DISTRICT 813

Local cooperation. In addition to the usual requirements for local cooperation as provided by law, local interests are required to remove or relocate all structures at or near the alinement of the proposed work. Local interests have furnished written assurance of their willingness to provide local cooperation for the entire project and have acquired a portion of the land necessary for construction. Operation and results during the fiscal year. No work was accom- plished during the fiscal year. Condition at end of fiscal year. No construction work has been initiated. Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated------...... $655 Cost....------655

Other new work data: Appropriated for succeeding fiscal year ending June 30, 1956 --- $116, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------116, 000

6. BILLINGS, YELLOWSTONE RIVER, MONT. Location. The work covered by this project is located at Bill- ings and vicinity on Yellowstone River, Mont., 346 river-miles up- stream from its confluence with the Missouri River. Existing project. The overall plan of improvement for the flood protection of Billings and contiguous areas consists of a system of ditches, channels, and levees by means of which floodwaters ap- proaching the city from the west, east, or south may be diverted away from the area subject to flooding. The proposed plan is divided into three separate units. The western unit of the plan consists of an interception ditch which will divert runoff from west of Billings into the Yellowstone River. Reinforced concrete spillways will divert storm waters from four irrigation canals which cross the alinement of the proposed interception ditch, and drainage from other areas will enter the ditch through control spillways. Necessary appurtenances to the interception ditch are a reinforced concrete stilling basin, earth levees, a reinforced con- crete chute and stilling basin. A railroad bridge and several addi- tional highway bridges, over the proposed interception ditch and other similar improvements, will be necessary for completion of this unit. The eastern unit of the plan is designed to protect the fairgrounds and adjacent areas east of Billings from floods on Alkali Creek. The proposed plan consists of two sections of levee along the right bank of the existing channel; a cutoff channel 510 feet long excavated through the rock escarpment; and an enlarge- ment of the existing channel from the stilling basin to the Yellow- stone River. A railroad bridge will be necessary for this unit. The southern unit of the overall plan is designed to protect the 814 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955 areas south and east of Billings from floods on the Yellowstone River. This unit consists of a levee along the left bank of the river, and necessary appurtenant interior drainage structures. An existing levee will be incorporated into the proposed works. The project was authorized by the Flood Control Act approved May 17, 1950 (H. Doc. 216, 81st Cong., 1st sess.). The estimated Federal cost (July 1955) is $4,150,000; the estimated local cost (July 1955) is $317,000 for relocations, lands, and damages. Local cooperation. In addition to the usual requirements for local cooperation as provided by law, local interests are required to remove or relocate all structures at or near the alinement of the proposed work, provide all bridges and similar improvements, and construct or relocate roads. Local interests have indicated their willingness and ability to comply with all requirements. Operation and results during the fiscal year. Work was initiated on field surveys, investigations and detailed plans. The total cost during the fiscal year was $24,397. Condition at end of the fiscal year. The general design memoran- dum was approximately 94 percent complete at the end of the fiscal year. Total cost to June 30, 1955, was $24,397.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated---....-----....---. ------..... ------$25, 000 $25, 000 Cost------24, 397 24, 397

Other new work data: Unobligated balance, fiscal year ending June 30, 1955 _ $603 Appropriated for succeeding fiscal year ending June 30, 1956 -.. 40, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956------40, 603 Estimated additional amount needed to be appropriated for com- pletion of existing project------4, 085, 000

7. SHERIDAN, YELLOWSTONE RIVER, WYO. Location. The work covered by this project is located at Sheridan and vicinity on both sides of Goose Creek and Little Goose Creek ap- proximately 11.6 miles above the junction of that stream with the Tongue River. Existing project. The overall plan of improvement for flood pro- tection at Sheridan consists of a system of levees and floodwalls in combination with alterations of the channels of Goose Creek and Little Goose Creek. The area subject to flooding from Little Goose Creek will be protected by approximately 12,800 feet of levee, 2,750 feet of vertical concrete floodwall and approximately 1,500 feet of new channel. The proposed works for protection of areas along Big Goose Creek include approximately 1,700 feet of new channel, 28,600 FLOOD CONTROL--FORT PECK, MONT., DISTRICT 815 feet of levee, 330 feet of concrete floodwall, and 9,500 feet of improved channel. Riprap will be placed on earth slopes for a distance of 50 feet above and below all bridges: and the outside banks on all curves where erosion is likely to occur. Grouted riprap will be placed in drop sections of both streams. The project was authorized by the Flood Control Act approved May 17, 1950 (H. Doc. 216, 81st Cong., 1st sess.). The estimated Federal cost (July 1955) is $2,470,000; the estimated local cost (July 1955) is $44,000 for relocations, lands, and damages. Local cooperation. In addition to the usual requirements for local cooperation as provided by law, local interests are required to remove or relocate all structures at or near the alinement of the proposed work, provide all bridges and similar improvements, and construct or relo- cate roads. Local interests have indicated their willingness and ability to comply with all requirements. Operation and results during the fiscal year. No work was accom- plished during the fiscal year. Condition at end of fiscal year. No work has been initiated.

8. GREYBULL, YELLOWSTONE RIVER, WYO. Location. The work covered by this project is located at Greybull and vicinity on Big Horn River, Wyo., 183 river miles upstream from its confluence with the Yellowstone River. Existing project. The plan of improvement provides for the pro- tection of areas subject to flooding in the city of Greybull, Wyo. The project is designed to give flood protection to residences, business es- tablishments, industrial areas, public buildings, and facilities of the Chicago, Burlington & Quincy Railroad, and consists of approxi- mately 12,425 feet of levee and necessary appurtenant interior drainage structures along the left bank of the Big Horn River. Existing levees, which presently provide protection against minor floods, will be in- corporated into the proposed works wherever possible. The project was authorized by the Flood Control Act approved May 17, 1950 (H. Doc. 216, 81st Cong., 1st sess.). The estimated Federal cost (July 1955) is $340,000; the estimated local cost (July 1955) is $97,000 for utility modifications, lands, and damages. Local cooperation. In addition to the usual requirements for local cooperation as provided by law, local interests are required to raise highway grades, relocate a sewage pumphouse, and remove existing structures at or near the alinement of the proposed work. Local interests have indicated their willingness and ability to comply with all requirements. Operation and results during the fiscal year. Work was initiated on field surveys, investigations and detailed plans. The total cost during the fiscal year was $30,307. Condition at end of the fiscal year. The design memorandum was approximately 95 percent complete at the end of the fiscal year. Total cost to June 30, 1955, was $30,307.

363037-55-vol. 2 52 816 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated------$40, 000 $40,000 Cost..------30, 307 30, 307

Other new work data: Unobligated balance, fiscal year ending June 30, 1955------$9, 693 Appropriated for succeeding fiscal year ending June 30, 1956--- _ 300, 000 Unobligated balances available for succeeding fiscal year ending June 30, 1956_------______309, 693

9. OTHER AUTHORIZED FLOOD CONTROL PROJECTS

Cost and expenditures to For last June 30; 1955 Estimated full report, amount Name of project seeAnnual amount Report Operation required for- Construction and to complete maintenance

Buffalo, Wyo....------$675, 000 Dayton, Wyo...------130, 000 Forsyth, Mont------...... -1950 $255, 177 .------(2) Glasgow, Mont....------1939 16, 832--...... (2) Miles ------, Mont.....2 ------1952 ------,015------3.------1 350,,000 Miles City, Mont. 1,350,000 Monarch, Wyo.4.-.------.240, 2 000

1 Authorized by the 1950 Flood Control Act. No planning or construction funds have been allotted. 2 Project completed. 3 Authorized-by the 1936 Flood Control Act. 4 Inactive. 3 Estimated cost July 1954.

10. INSPECTION OF COMPLETED PROJECTS The work included in this feature consists of periodic inspections of local flood protection projects to ascertain whether projects are properly operated and to point out essential maintenance and repair work which should be accomplished. Total cost and expenditure incurred in connection with this work during the fiscal year was $1,494, distributed as follows: Location: Cost Glasgow, Mont------$194 Shields Riv., Mont------400 Three Forks, Mont_, 500 Forsyth, Mont------400

Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated ------...$1, 200 $800 $800 $1, 200 $1, 500 $5, 500 Cost------.. 1,015 685 1,100 1,196 1,494 5, 490 FLOOD CONTROI---FORT PECK, MONT., DISTRICT 817

11. FLOOD CONTROL WORK UNDER SPECIAL AUTHORIZATION Snagging and clearing of navigable streams and tributaries in the interests of flood control (sec. 13 of the 1946 Flood Control Act). Work was performed during the fiscal year on the following streams:

Name and location: Cost for fiscal year Belt Creek, Mont ------$1, 874 Little Prickly Pear Creek, Mont_------.. 2, 519 Shields River, Mont __- __------1, 208 Milk River, Mont------238

Total ------5,839 Construction was completed on the Belt Creek project during the fiscal year. Construction will be completed on Little Prickly Pear Creek and Milk River during fiscal year 1956 with available funds. No further work will be accomplished on Shields River because spon- sorship for the project was withdrawn.

Cost and flnancial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated-----...... ------$42,000 $84, 601 $25, 087 $151, 688 Cost...... ------42, 000 81,106 5, 839 128, 945

Other new work data: Unobligated balance, fiscal year ending June 30, 1955_------$22, 743 Emergency bank protection (sec. 14 of 1946 Flood Control Act). Emergency bank protection work was performed on the following streams during fiscal year 1955: Jefferson River in the Waterloo area near Whitehall, Mont------$39, 546 Yellowstone River at Livingston, Mont .------8, 087

Total__------47, 633 Bank protection work was completed on the Jefferson River during the fiscal year. Work on the Yellowstone River at Livingston, Mont. was approximately 96 percent complete June 30, 1955, and will be com- pleted during fiscal year 1956 with available funds.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

New work: Appropriated------$21,117------$18,666 $50,000 $1, 546 $215, 917 Cost------2 ------18,666 ...... -----47,633 212,004

Other new work data: Unobligated balance, fiscal year ending June 30, 1955_------$3, 913 818 REPORT OF THE CHIEF OF ENGINEERS, U. S. ARMY, 1955

Small flood control projects not specifically authorized by Congress (sec. 212 of the 1950 Flood Control Act). A design memorandum for the Belt, Mont. project was completed during the fiscal.year. A design memorandum for Plentywood, Mont. was initiated and was approximately 95 percent complete on June 30, 1955. The total cost during the fiscal year was $8,282.

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 prior to 1951

New work: Appropriated ______.. -$20, 953 . ... $18, 650 $6, 304 $50, 701 Cost 21, 207 ------16, 168 8, 282 50, 197

Other rnew work data: Unobligated balance, fiscal year ending June 30, 1955 ------$504

Emergency flood control activities (sec. 210 of the 1950 Flood Con- trol Act and supplemental authorizations). Work was performed during the fiscal year at the following costs: Flood emergency operations_- $18, 897 Advance preparation for flood emergencies------2, 542 Total------1,439

Cost and financial summary

Fiscal year ending June 30 Total to June 30, 1955, includ- ing fiscal years 1951 1952 1953 1954 1955 priorto 1951

Maintenance: Appropriated -- $15, 537 $8, 094 $123, 000 $56, 672 $15, 941 1 $698, 364 Cost------31,178 8,703 117,099 55,614 21,439 1696, 902

1 Exclusive of $5,990 contributed funds.

12. EXAMINATIONS AND SURVEYS-FLOOD CONTROL STUDIES The cost incurred from flood control studies on the Sun River and Tributaries during the fiscal year was $15,978. The interim report with respect to flooding at Great Falls, Mont., was essentially com- plete at the end of the fiscal year.

13. COLLECTION AND STUDY OF BASIC DATA The cost of collection and study of basic data, which included work in connection with the preparation of the Annual Flood Report, and the collection of current flood information pertaining to serious floods on streams for which formal reports have not been specifically directed by Congress, was $2,239 during the year.