Keith Sebeliijs 2000 Lake Survey
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KEITH SEBELIIJS 2000 LAKE SURVEY FOR ______ REOIJ - . RE U.S. Department of the Interior Bureau of Reclamation Form Approved REPORT DOCUMENTATION PAGE 0MB No. 0704-0188 I. AGENCY USE ONLY (Leave Blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED September 2001 Final _______________________________ 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS Keith Sebelius PR 2000 Lake Survey 6. AUTHOR(S) Ronald L. Ferrari _______________________ 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORJ4]NG ORGANIZATION REPORT N1JMBER Bureau of Reclamation, Technical Service Center, Denver CO 80225-0007 ____________________________ 9. SPONSORING/MONiTORING AGENCY NAME(S) AN]) ADDRESS(ES) 10. SPONSORING/MONITORING AGENCY REPORT NuMBER Denver Federal Center, P0 Box 25007, Bureau of Reclamation, DIBR Denver CO 80225-0007 _____________________________ 11. SUPPLEMENTARY NOTES Hard copy available at Bureau of Reclamation Technical Service Center, Denver, Colorado 12a. DISTRIBUTION/AVAIIABIL1TY STATEMENT 12b. DISTRIBUTION CODE 13. ABSTRACT (Mzximum 200 words) The Bureau of Reclamation (Reclamation) surveyed Keith Sebelius Lake (formerly Norton Reservoir) in July and September of 2000 to develop a topographic map and compute a present storage-elevation relationship (area-capacity tables). The data were used to calculate reservoir capacity lost due to sediment accumulation since dam closure in October of 1964. The underwater survey was conducted in the main part of the reservoir in July of 2000 and the upper portion of the reservoir in September of 2000. The surveys were conducted near reservoir elevation 2300 feet (project datum). The underwater survey used sonic depth recording equipment interfaced with a global positioning system (GPS) that gave continuous sounding positions throughout the underwater portions of the reservoir covered by the survey vessel. The above-water topography was determined by digitizing the developed contour lines from the U.S. Geological Survey quadrangle (USGS quad) maps of the reservoir area. The new topographic map of Keith Sebelius Lake was developed from the combined 2000 underwater measured topography and the digitized USGS contours and assumed no change above elevation 2,300.0. As of September 2000, at top of conservation water surface elevation (feet) 2,304.3, the surface area was 2,181 acres with a total capacity of 34,510 acre-feet. Since initial filling in October of 1964, about 1,617 acre-feet of sediment have accumulated in Keith Sebelius Lake below elevation 2,304.3, resulting in a 4.48 percent loss in reservoir volume. Since 1964, the estimated average annual rate of reservoir capacity lost to sediment accumulation is 44.9 acre-feet. 14. SUBJECTTERMS 15. NUMBER OF PAGES reservoir area and capacity! sedimentationl reservoir surveys! sonar! sediment distributionl _____________________ contour area! reservoir area! sedimentation survey! global positioning system 16. PRICE CODE 17. SECURITY 18. SECURITY 19. SECURITY CLASSIFICATION 20. LIMiTATION OF CLASSIFICATION CLASSIFICATION OF ABSTRACT ABSTRACT OF REPORT OF THIS PAGE UL Tm UL NSN 7540-01-280-5500 Standard Form 298 (Rev. 2-89) Prescribed by ANSI Std. 239-18 298-102 Keith Sebelius Lake 2000 RESERVOIR SURVEY by Ronald U. Ferrari Sedimentation and River Hydraulics Group Water Resources Services Technical Service Center Denver, Colorado August 2001 ACKNOWLEDGMENTS The Bureau of Reclamation's (Reclamation) Sedimentation and River Hydraulics Group of the Technical Service Center (TSC) prepared and published this report. Jennifer Bountiy, Kent Collins and Ronald Ferrari of the TSC conducted the hydrographic survey. Ronald Ferrari completed the data processing needed to generate the new topographic map and area- capacity tables. Sharon Nuanes of the TSC completed the final map development. Kent Collins of TSC performed the technical peer review of this documentation. Mission Statements The mission of the Department of the Interior is to protect and provide access to our Nation's natural and cultural heritage and honor our trust responsibilities to tribes. The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. The information contained in this report regarding commercial products or firms may not be used for advertising or promotional purposes and is not to be construed as an endorsement of any product or firm by Reclamation. The information contained in this report was developed for the Bureau of Reclamation; no warranty as to the accuracy, usefulness, or completeness is expressed or implied. 11 CONTENTS Page Introduction Summaiy and Conclusions Reservoir Operations ............................................................. 2 Hydrographic Survey Equipment and Method ......................................... 3 GPS Technology and Equipment ............................................... 3 Survey Method and Equipment ................................................. 5 Keith Sebelius Lake Datums ................................................... 5 Reservoir Area and Capacity ....................................................... 6 Topography Development ..................................................... 6 Development of 2000 Contour Areas ........................................... 7 2000 Storage Capacity ....................................................... 7 Reservoir Sediment Analyses ...................................................... 8 References ...................................................................... 9 TABLES Table 1 Reservoir sediment data summaiy (page 1 of 2) ................................... 10 1 Reservoir sediment data summary (page 2 of 2) ................................... 11 2 Summary of 1999 survey results ................................................ 12 FIGURES Figure 1 Keith Sebelius Lake location map .............................................. 13 2 Norton Dam, plan and section ................................................. 14 3 Keith Sebelius Lake topographic map, No. 492-D-365 ............................ 15 4 Keith Sebelius Lake topographic map, No. 492-D-366 ............................ 17 5 Keith Sebelius Lake topographic map, No. 492-D-367 ............................ 19 6 Keith Sebelius Lake topographic map, No. 492-D-368 ............................ 21 7 Keith Sebelius Lake topographic map, No. 492-D-369 ............................ 23 8 2000 area and capacity curves .................................................. 25 111 INTRODUCTION Keith Sebelius Lake and Norton Dam are located in Norton County on Prairie Dog Creek about 2.5 miles upstream of Norton, Kansas (fig. 1). Keith Sebelius Lake (formerly Norton Reservoir) is part of the Almena Unit of the Missouri River Basin development that was designed to provide irrigation, municipal and industrial water, flood control, and recreation benefits. The dam and reservoir are operated and maintained by the Bureau of Reclamation. Norton Dam was completed in December of 1964 and is a zoned rolled earthfill structure whose dimensions are (fig. 2): Hydraulic height1 84.4 feet2 Structural height 131 feet Top width 30 feet Crest length 6,450 feet Crest elevation 2,347.0 feet The spiliway is located on the right abutment of the dam and is a gated overflow concrete structure with three 30.0- by 36.35-foot radial gates, a concrete-lined discharge channel, and stilling basin. The spiliway crest elevation is 2,296.0. The capacity of the spillway is 94,600 cubic feet per second (cfs) at reservoir elevation 2,341.0. The outlet works consist of a drop-inlet type intake structure with two high-pressure gates. The outlet works stilling basin is designed for a maximum discharge of 330 cfs at the maximum water surface elevation of 2,341. The total drainage area above Norton Dam is 683 square miles as listed by the USGS Water Resources Data Book. Keith Sebelius Lake has an average width of 0.5 miles with a length of around 6.5 miles. SUMMARY AND CONCLUSIONS This Reclamation report presents the 2000 results of the survey of Keith Sebelius Lake. The primary objectives of the survey were to gather data needed to: • develop reservoir topography • compute area-capacity relationships • estimate storage depletion caused by sediment deposition since dam closure The definition of such terms as hydraulic height, structural height, etc. may be found in manuals such as Reclamation's Design of Small Dams and Guide for Preparation of Standing Operating Procedures for Dams and Reservoirs, or ASCE's Nomenclature for Hydraulics. 2Elevation levels are shown in feet. All elevations shown in this report are based on the original project datum established by U.S. Bureau of Reclamation which is tied to the National Geodetic Vertical Datum of 1929. 1 The underwater survey was conducted in July and September of 2000 near reservoir water surface elevation 2,300. The bathymetric survey was run using sonic depth recording equipment, interfaced with a differential global positioning system (DGPS), capable of determining sounding locations within the reservoir. The system continuously recorded depth and horizontal coordinates of the survey boat as it was navigated along grid lines covering Keith Sebelius Lake. The positioning system provided information to allow the boat operator to maintain a course along these grid lines. Water surface elevations recorded by the reservoir gauge (tied to the Reclamation vertical datum) during the time of collection were used