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North Platte Project

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North Platte Project THE NORTH PLATTE PROJECT ~utOlUf Wedell, g~'1 GHJ 'J(td~edi~ The North Platte Project is one of the fi rst constructed Settlement of the valley began in the early 1880's and s~all The water supply for the project is obtained from t he North Most of the project soils consist of silt loams and very fine under the Reclama tion Act of 1902. It is located in western individual irrigation systems were built soon after to serve lands Platte River which has its origin. in the mountains of W yoming sandy loams deve loped on long gentle slopes. Generally, t hey Nebraska and eastern W yoming. Constructed primarily for along the river. Without storage facilities many of these systems and Colorado. The average annual runoff during the period 1928 are deep and well-adapted to the production of irrigated crops. irrigation, facilities were also included for the generation and were unsuccessful. The fi rst investigations of the area by the to 1956 from the 10,700 square mile drainage a rea above Path­ transmission of electric energy. The elevation above sea level of the irrigable areas varies Reclamation Service, the predecessor of the present Bureau of finder Dam was 1,030,000 acre-feet, and from the 5,500 square from 4250 feet at Whalen, W yomin g to about 3600 feet in the The project lands lie along the North Pla tte River Valley R eclamation, were initiated in 1902. The project was author­ mile area between Pathfinder and Guernsey Dams, 240,000 vicinity of Broadwater, Nebraska. Temperatures var y from a BUREAU OF RECLAMATION in Goshen County, W yoming, and in Scotts Bluff, Sioux, a nd ized by the Secretary of the Interior on March 14, 1903. acre-feet. low of -45 deg rees to a high of 106 degrees Fahrenheit. The REG IONAL OFFICE, REG ION 7 Morrill Counties, Nebraska. The lands vary in width from one Construction of the project started in July 1905 with work growing season averages about 135 da ys. Precipitation at Scotts­ BUILDING 46, D ENVER FEDERAL CENTER to ten miles on each side of the river a nd extend III mi les down Senior natural flow rights and court decrees determine the DENVE R, COLORADO on the main Interstate Canal. The first section was completed • bluff, N ebraska, near the center of the irrigable lands, varies the valley from Wha len Diversion Dam. proportion of runoff available to the North Platte Project. from 9.4 inches to 20.7 inches annually with a long time annual in 1907, perm itting localized irrigation during 1908. Construction a verage of 15.10 inches. Major features include Pathfinder and Guernsey Rcservoirs ; on Pathfinder Dam began September 25, 1905 and was completed Releases to the project area from Guernsey Reservoir have Guernsey Powerplant; Whalen Diversion Dam; the I nterstate, June 5, 1909. Whalen Diversion Dam was completed in February averaged 970,000 acre-feet a nnually. Fort Laramie, and N orthport Canals ; distribution laterals ; and 1909. With the completion of Guernsey Dam, Reservoir and a power transmission systenl. The project furnishes the entire water supply for 226,323 P owerplant in 1927, the project was essentially finished. acres of irrigable land in the four irrigation districts-Pa thfinder, The principal crops are su~ar beets, dry beans, corn, alfalfa On June I, 1926 facilities of the Interstate Canal were turned 102,824 acres; Goshen, 52,484 acres; Gering-Fort Laramie, 54,845 hay, and potatoes. The gross crop va lue in recent years has over to the Pathfinder Irrigation District for operation and acres; and Northport, 16,170 acres. Nine private irrigation approxima ted $90 per acre and in 1958 totalled $20,600,000. T he maintenance. On January I, 1927· the Goshen Irrigation District districts under W arren Act contracts receive supplemental water large quantities of corn. alfalfa hay. a nd sugar beet tops and assumed responsibility for the Fort Laramie Canal facilities in for an irrigable area of 108,715 acres. When available, surplus pulp encourage livestock feeding. More than 50,000 head of W yoming and t he Gerin g-Fort Laramie Irrigation District took storage water has also been purchased on an annual basis by ca ttle, 350,000 head of sheep, and 50,000 hogs a re " finished" over the Nebraska portion. On the same date Northport Canal other private irrigation districts. In the future these 34,470 each year in t he valley. works were transferred to the Northport Irrigation District. acres of irrigable land will receive supplemental water from Sugar beets are processed in t h e area. There are meat PATHFINDER DAM Glendo Reservoir, a feature of the Missouri River Basin Project. packing facilities at Ge ring and slaug htering p lants in other places. A canning plant in Scottsbluff processes green peas, The annual diversion requirement per acre of irrigable land beans. pumpkin. sweet corn, and cabba ge. Project farms are and the farm delivery per acre averaged 3.31 and 1. 18 acre-feet , served by local elevators and warehouses; shipments of produce respectively, in the Pathfinder District during the five-year are forwarded to all major markets of the Un.ited States. The period ending 1957; 2.15 and 1.22 in Goshen ; 2.33 and 1. 28 in area is served by major highways ; trucking companies ; and the Gering-Fort Laramie ; and 3.3 1 and 1.45 in Northpor t. Union Pacific a nd Chicago, Burling ton and Quincy Railroads. FREMONT CANYON RAY REEF DAM AND RESERVOIR After completion of the North Platte Project, other devel­ (G lendo Unit) (Glendo Unit) opments were constructed on the Nort h P la tte River by the Bureau of Reclamation. Principal features of the Kcndnck Project are Seminoe Dam, Reservoir, and Powerplant ; Alcova Dam, Reservoir, and Powerplant; transmission lines; and canals GLENDO DAM. RESERVOIR and laterals serving the project lands west of Casper, W yoming. PATHFINDER DAM AND AND POWERPLANT (Gle ndo Unit) The Kortes and Glendo Units of the Missouri River Basin NORTH PLATTE PROJECT RESERVOIR P roject are located in the area. Kortes Dam, Reservoir, and Powerplant are the features of the Kortes Unit. The Glendo Unit consists of the F remont Canyon Powerplant ; Gra y Reef WYOMING NEBRASKA Dam and Reservoir; and the Glendo Dam, Reservoir, and Power­ DAM, RESERVOIR AND POWER PLANT plant. Transmission lines serving t he area and interconnected (Kortes Unit) with other Bureau systems are also part of t he Missouri River SEMINOE DAM, RESERVOIR Basin Project. AND POWERPLANT (KfJndrlck Project} The project irrigation systems-Interstate, Fort Laramie, PATHFINDER IRRIGATION DISTRICT and Northport-are operated and maintained by the irrigation districts served, with the exception of the Wyoming section of the Fort Laramie Canal. This reach of canal is operated and maintained by the Goshen Irrigation District with the Gering­ Fort Laramie Irrigation District sharing the cost. Pathfinder and Guernsey Dams and Reservoirs, Whalen Diversion Dam, Guernsey Powerplant, and the t ransmission system are operated and maintained by the United Sta t es. The reservoir and power system operations are integrated with others in the Western Division of the Bureau's Missouri River Basin power system. Centralized control and dispatc hing is under the supervision of the Power Dispatching and Water Scheduling (Heodquor fers- Gering, Nebr.) Divisions of the South P latte River Projects Office near L ove­ land, Colorado. -----------<11w P'UJ.jeci P/fi,H,----------- ------------------------p~~ ~~------------------------ Pathfinder Reservoir on the North Pla tte River southwest Water diverted near the W yoming-Nebraska State line is The fertile soils, dependable water supply, g ood growing MAJOR REGULATORY RESERVOIRS of Casper, Wyoming provides the principal project storage. carried 80 miles throug h the pri va tely-owned Tri-State Canal MAJOR STORAGE RESERVOIRS season, established marketing facilities, and specialized farm The dam, a masonry arch gravity structure, rises 192 feet above to the head gate of the Northport Canal and la teral system. This Guernsey Item Lake Alice Loke Minatare experience combine to make this highly-developed irrigated Item Pa thfinder the streambed. Outlet tunnels through the north and south system serves the Northport Irrigation District near the easterly area an important source of the national food supply. Sugar IRRIGATED CROPS Dams Normal Water Surface El. (Ft.) 4,182 4,125 abutments were constructed. Facilities for the Fremont Canyon end of the project. Normal Capacity (Ac.-Ft.) 11,171 60,766 production in a normal year supplies the needs of 2,400,000 P owerplant, part of the Glendo Unit of the Missouri River A total of 352 miles of open drains and 28 miles of closed Type Masonry Arch Earth and Surface Area (Ac.) 784 2,158 people, potato production 4,500,000 people, edible bean produc­ Gravity Rock-Fill Basin Project, include a pressure tunnel from P athfinder Reser­ drains carry off waste and seepag e water. One hundred and 135 DIVERSION DAM ninety-four miles of 34. 5 KV project transmission lines distribute tion 14,000,000 people, and meat production 4,500,000 people. Structural Height (Ft.) 214 voir to the powerplant. The south tunnel outlet has been aban­ Hydraulic Height (Ft. ) 184 95 Item Diverts Length of Weir Length of Dikes doned and all releases are made throug h the powerplant and power in the area. The irrigated land is 7 times more valuable per acre than Length of Crest (Ft.) 432 560 (ds) (Ft.) (Ft.) the north tunnel outlet. The Ling le Powerplant, utilizing water from the Fort the average adjacent dry land. An acre of irrigated land out­ Width of Crest (Ft.) 10.9 25 Laramie Canal, was constructed near Lingle, W yoming.
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