Design Memorandum No. Jp-2C Master Plan
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DESIGN MEMORANDUM NO. JP-2C MASTER PLAN JAMES RIVER PIPESTEM LAKE, NORTH DAKOTA UPDATED OCTOBER 1987 US Army Corps of Engineers Omaha District CENWO-OD-TN ( 111 0-2-240a) 3 April2006 MEMORANDUM FOR RECORD SUBJECT: James River, Pipestem Lake, North Dakota, Design Memorandum No.JP2C, Supplement 1 1. The above supplement is an update of specific pages in the above titled Design Memorandum. The listing below identifies the pages that have been updated. The updated pages are enclosed. a. Page iv- updates the Surface Area (acres) Spillway Design Flood and Flood Control- "Full Pool." b. Page v- updates the Surface Area (acres) Multipurpose Pool. c. Page II-6 -updates 11. CULTURAL RESOURCES paragraph by adding "Cultural Resources Management Plan" for Pipestem Dam and Lake, North Dakota. d. Page II-7- updates paragraph 13.1, second line to read "flows in excess of 1,250 c.f.s." e. Page Il-9- updates TABLE 1. f. Page II-14- updates TABLE 2 to include 2005 Visitors and Visitor Hours information. g. Page Il-15- update~ TABLE 3. y "-''<1''-rt IL<+V-· 2. The subject Design Memorandum No. JP-2C, Supplement I, is approved. 7 Encls ~~?-y--~- as ~ Commanding FIFE STEM CREEK DAM AND LAKE, JAMES RIVER J\ASIN, NORTH DAKOTA. PERTINENT DATA (All elevations given are feet above mean sea level) PROJECT AUTHORIZATION Flood Control Act of 1965, Public Law 89-298. Specific Purposes, Flood Control, Recreation, and Fish and t{ildlife . LOCATION . On Pipestem Creek about 4 miles north~T e st of Jamesto~· n , North Dako ta! and approximately the same distance above the confluence ~ith the James River. The dam is located in Stutsman County, North Dakota, with the. r ight abutment being in Section 9 and the left abutment in Section lOl T l ~ ON, R 6~W . DRAINAGE AREA CONTROLLED - 594 square mil e s LAND AND VATER Total Lnnds Acquired Fee 4194.51 Acres Flowage Easement 3134.33 Acres Ro ad and Utility Easement 7.41 Acres Total 7336.25 Acres Sepnrn.ble Lande Recreation 40.0 Acres Fish and Wi l dlife None Acquisition rolicy in Effect Five feet vertica l freeboard or 300 fee t horizontal from guide control eleva t i on, ~h ic h eve r 1s greates t. Guide Control Elevation 1501.03 Lake Ch;:~.racteriatica Storage Capacity Surf.'lce. Klev .. Top ·. (Acre-Feet) Aren of Zone Initial 100-year (Acre~) Maximum Surchar ge - Spillway De s i gn Flood 1502.8 183' 73 0 185, 500 6, 000 11 Flood Control - "Full Pool l l~96. 3 146, 880 144, 500 4, 728 l.V Updated 4/ 4/05 Hultipurpo s e Pool 1442 .5 9,370 5, 000 840 Length of lake at multipurpose pool 5. 5 miles Shoreline miles a t multipurpose pool - 14.5 mi l es Maximum Elevation: - 5 year frequency - 1461 ft. - 10 year frequency - 1466 f t. - 20 year frequency - 1470 ft. - SO year frequency - 1475 ft. - 100 year frequency - 1479 f t. STRUCTURAL DATA D~. Ty p e ••.••••••....... Rolled Ea rth Fill Height .•.••.•......•. 99 . 5 ft. Crest Elevation ...... 1507 .5 ft. Len g th .•••••••..•.•.• 4 , 000 ft. WicHh a t Top •• ,,, .• ,. 30 ft. Maximum Width at Bas e 940 ft. Outlet Works ype •....••...• . •.••. Ungat ed Drop Inlet Elevati on la42. s ax i mum Capaci ty .•.•• 2, 300 c . f . s . at el eva t ion 1496 . 3 Con du i t .••..•......•. One - 8ft. inside di ameter x 675 ft . Ga t es .....•.... .... Two - 4x7 f eet hyd raulic slide One - 36-inch val ve with 3x3 ft . slide Spillv::a.y Type •.........•...• • . Unga ted eart h chan nel El evat ion 149 6.3 Wid t h and Length ....· • 1,500 f t. x 3,100 f t . Capacity ............. 56 , 20 0 c . f.s . at Elevation 1502 . 8 S tilling Basin Type - Conventional Hydr aul i c Jump . Width and Length .•... 26 ft. x 55 ft . F l oor El evation ...... 1395 . 8 End Sill Elevation ••• 1398 .4 Updated 4/ 4/ 05 v of adjusting habitat conditions for the benefit of rare species, especially the swift fox and greater prairie chicken. 10.6 Manipulation of lake water levels in order to create improved conditions for fish or wildlife during critical periods such as spa~o.'l1ing or migration is encouraged. Water level management plans for fish and wildlife purposes will be devised with the assistance of the North Dakota Department of Game and Fish and/or the U.S. Fish and Wildlife Service, and ~o.·ill be approved by the District Engineer. 11. CULTURAL RESOURCES. At leas't one-half of the pr.oject fee lands have been visually surveyed for cultural resources. The lakebed was examined by a Smithsonian Institution River Basin Surveys crew in 1966. Portions of the shoreline and uplands were subsequently surveyed by Corps archaeologists. All surveyors indicate that dense ground cover or other conditions limited their results to preliminary or reconnaissance level effectiveness. No soil disturbing activity will be planned without providing for an intensive survey for cultural resources well in advance of the disturbing activity. The presence of cultural resources may require modification of initial plans, as determined by the District Engineer in coordination with other agencies as required by law. Specific proje.ct cultural resources considerations are found in the Operational Management Plan "Historic Properties Hanagement Plan, Pipestem Lake, North Dakota 11 andinthe"CulturalResourcesManacrement ::::> Plan" for Pipestem Dam _aJ2sLI,ake,)'foJ1h_:pakgt~. 11.1 The interpretive and educational values of project cultural resources- ~ill be exploited to the max~mum level consistent with good management and the integrity·of the resource. 11.2 Prehistoric Sites. There are currently (1987) three kno\.;n prehistoric sites on fee lands which may be eligible for nomination to the National Register of Historic Places. De terminations of el igib il ity are not yet completed. These sites are 32SN70, 100, and 102. Site 32SN100 is a conical mound situated l<l'ithin Parkhurst Park which may be of prehistoric or~g~n. If so, it has a high potential for interpretation because of the location. 11.3 Historic Sites. One farmstead site/ foundation-ruin has been recorded as site 32SN47. Significance has not been determined. 11.4 General. The potential for locating additional significant cultural resources at Pipestem appears to be quite high. 12. WATER QUALITY. Five sampling stations have been es tab 1 ished to r.~oni tor the water quality of the reservoir's tributary inflow, reservoir water, and release water from the dam . Samples are routinely collected from each station. 12.1 Water Quality Requirements. Public Law 89-234, the 19 65 lolater Quality Act, Section lO(c) established the National Water Quality Standards Program. Executive Order 12088, dated October 1978, requ~res that all necessary actions be taken for the prevention, control, and abatement of II-6 Updated 4/4/05 envir onmental pollution with respec t t o Federal facilities , and that they comply wi t h all pollution contr ol standards. Applicable State standards '''ere. adopted March 1973 and amended in April 1985. 12.1.1 'Excer p t s from t he State of North Dakota '"ater quality standards are shown in 'Exhibit E . Pipestem Lake falls into a 3C classifi cation. The water. is classified as capable of supporting grot.rth and propa gation of nonsalmonid fishes and associat ed aquat ic life. Class "C'' lakes a r e pr esen tly some,.,.hat degr aded and pr ogressing to1...a.rd further degradation. 12. 1 . 2 Water s from Pipestem Creek flowing into the reservoir periodically deviat e from North Dakota's standards for the follo1,ring paramet ers: fecal coliform bacteria, sulphates, and phosphates. B.igh phosphorous loading is a par t i cular pr oblem. Released waters also deviate from t11e standards for phosphates and sulphates . 12.1.3 Water i n the reservoir is eutrophic. During calm periods, the water tends to stratify into layer s but only on an intermittent basis . During summer months, dissolved oxygen is adequate 1n the upper portions of the water column but lo~.,. 1n the. bottcm portions. b -.-inter months, low dissolved oxygen levels are known to exist in areas of the reservoir. No fish kills have been reported, but the potential exists especially during winter ice cover. Algal blooms may be extensive during the summer roonths . The concentrations of ammonia, phosphates and dissolved oxygen in the lake periodically do not neet State water quality stc.ndards. 13. RESERVOIR PLAN OF OPERATIONS . Pipestem Dam is operated in po.ralld ;.;-ith the James to,vn Dam to regulate flooding from the James Ri,~e::: th.rcugh Jamestown , North Dakota . 13. 1 Although the design capacity of the. channel through ..Ta:ne~tc,.-n ~ s 1800 cubic feet per second (c . f.s . ), flows in excess of 1, 250 c . f.~ . cause urban flooding damage . The desirable combined releases for flood control from both Jamestown and Pipestem Lakes is 450 c . f.s. This objectiYe is not practical when significant flood storage amounts ha,re accur..ulatsd. The normal reservoir regulation plan for Pipestem Lake is dependent upon storage accumulations in both reservoi rs . Flood control storage is evacuated first to a maximum of 1800 c . f . s . from both reservoirs . The flood control space is evacuated prior to the onset of winter season. Evacuation of '''ater nored in the flood zone of Jamesto1•rn Reservoir is given priority over the e,·acuation of Pipestem Reservoir . As a result., the Pipestem pool will rise hi~he r and be retained longer than flood storAge in Jamestown Reservoir.