THEODORE ROOSEVELT RESERVOIR 1995 SEDIMENTATION SURVEY 1.FOkTF1Ep02. RESOiJ U.S. Department of the Interior Bureau of Reclamation ERRATA Theodore Roosevelt Reservoir 1995 Sedimentation Survey Page 10, Table 1, item 9: This should read 2,100 feet rather than 2214. Page 12, Table 1, item 47,footnote 1: Modifications to Roosevelt Dam completed in 1995 raised the dam elevation and lowered the spillway sill elevation. The original dam elevation was 2142 and the spiliway elevation (top of radial gates) was 2136. Page 13. Table 2, ,foolnole 7: Computed sediment expressed as a percentage of total computed sediment (182,185 acre-feet). REPORT DOCUMENTATION PAGE FormApproved J 0MB No. 0704-0188 Pubhc reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the cotlection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suit 1204, Arlington VA 22202-4302, and to the Office of Management and Budget, Paper-work Reduction Report (0704-0188), Washington DC 20503. 1. AGENCY USE ONLY (Leave Blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED May 1996 Final 4. TITLE AND SUBTiTLE 5. FUNDING NUMBERS Theodore Roosevelt Reservoir 1995 Sedimentation Survey PR 6. AUTHOR(S) Joe Lyons and Lori Lest 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION Bureau of Reclamation REPORT NUMBER Technical Service Center Denver CO 80225 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING Bureau of Reclamation AGENCY REPORT NUMBER Denver Federal Center P0 Box 25007 DIBR Denver CO 80225-0007 11. SUPPLEMENTARY NOTES Hard copy available at the Technical Service Center, Denver, Colorado 12a. DISTRIBUTiON/AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE Available from the National Technical Information Service, Operations Division, 5285 Port Royal Road, Springfield, Virginia 22161 13. ABSTRACT (Maximum 200 words) The Bureau of Reclamation (Reclamation) surveyed the area of Theodore Roosevelt Reservoir in the spring of 1995 to compile field data for developing a reservoir topographic map and computing a present storage-elevation relationship. The data were also used to calculate the volume of reservoir capacity loss attributable to sediment accumulation since dam closure in 1909. The bathymetric survey used sonic depth recording equipment interfaced with a GPS (Global Positioning System) that gave continuous sounding positions throughout Theodore Roosevelt Reservoir. The above-water reservoir area was measured from aerial photography obtained in October 1994. The reservoir topography was developed by a computer graphics program using the collected data. As of April 1995, at top of dam elevation 2,218 feet, the reservoir surface area was 31,852 acres and total capacity was 3,432,408 acre-feet. Since the initial filling in 1909, about 182,185 acre-feet of Theodore Roosevelt Reservoir capacity have been lost below elevation 2,136 feet (top of existing active conservation capacity), resulting in a 12- percent loss in reservoir volume. Since 1909, the average annual rate of reservoir capacity lost below elevation 2,136 feet is 2,121 acre-feet per year. 14. SUBJECT TERMS- -reservoir area and capacity! sedimentationl reservoir surveys! 15. NUMBER OF PAGES sonar! sediment distribution! contour area! reservoir area! sedimentation survey! 66 16. PRICE CODE 17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION 20. LIMITATION OF ABSTRACT OF REPORT OF ThIS PAGE OF ABSTRACT UL UL UL UL .it., ,eAa a nan rena Standard Form 298 (Rev. 2-89) Preectibed by ANSI Std. 239-18 298-102 THEODORE ROOSEVELT RESERVOIR 1995 SEDIMENTATION SURVEY by Joe Lyons and Lori Lest Sedimentation and River Hydraulics Group Water Resources Services Technical Service Center Denver, Colorado May 1996 ACKNOWLEDGMENTS The Bureau of Reclamation's Sedimentation and River Hydraulics Group of the TSC (Technical Service Center) prepared and published this report. Joe Lyons was the TSC team leader for the preparation of this report and Ron Ferrari conducted the hydrographic survey. Lori Lest and Norm Prince of the TSC and Rick Navratil from the Phoenix Area Office assisted in the completion of the report. Personnel from the Phoenix Area Office performed the required land survey for the hydrographic and aerial data collection. Rick Navratil conducted the aerial photography and hydrographic data interpretation needed to generate the new topographical maps and area-capacity tables. Ron Ferrari performed the peer review of this documentation. U.S. Department of the Interior Mission Statement As the Nation's principal conservation agency, the Department of the Interior has responsibility for most of our nationally-owned public lands and natural resources. This includes fostering sound use of our land and water resources; protecting our fish, wildlife, and biological diversity; preserving the environmental and cultural values of our national parks and historical places; and providing for the enjoyment of life through outdoor recreation. The Department assesses our energy and mineral resources and works to ensure that their development is in the best interests of all our people by encouraging stewardship and citizen participation in their care. The Department also has a major responsibility for American Indian reservation communities and for people who live in island territories under U.S. administration. 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 the Bureau of 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. II CONTENTS Page Introduction ........................................................................ Summary and conclusions ............................................................ Reservoir operations ................................................................. Hydrographic survey equipment and method ............................................. Survey history .................................................................. 3 Boat and shore equipment ......................................................... 3 GPS technology and equipment ..................................................... 3 1995 survey methods ............................................................. 5 Reservoir area and capacity ........................................................... 6 Topography development .......................................................... 6 Development of 1995 contour areas ................................................. 7 1995 storage capacity ............................................................. 7 Reservoir sediment analyses .......................................................... 8 References ......................................................................... 9 TABLES Table 1 Reservoir sediment data summary (page 1 of 3) ................................... 10 1 Reservoir sediment data summary (page 2 of 3) ................................... 11 1 Reservoir sediment data summary (page 3 of 3) ................................... 12 2 Summary of 1995 survey results and sediment distribution ......................... 13 3 Roosevelt Dam range line bank stations (page 1 of 2) ............................... 14 3 Roosevelt Dam range line bank stations (page 2 of 2) ............................... 15 FIGURES Figure la Theodore Roosevelt Reservoir topography and location map (sheet 1 of 2) .............. 17 lb Theodore Roosevelt Reservoir topography and location map (sheet 2 of 2) .............. 19 2 1995 area and capacity curves for Theodore Roosevelt Reservoir ..................... 21 3 Theodore Roosevelt Reservoir ground proffle for range line 1 ........................ 22 4 Theodore Roosevelt Reservoir ground profile for range line 2 ........................ 23 5 Theodore Roosevelt Reservoir ground profile for range line 3 ........................ 24 6 Theodore Roosevelt Reservoir ground profile for range line 4 ........................ 25 7 Theodore Roosevelt Reservoir ground proffle for range line 5 ........................ 26 8 Theodore Roosevelt Reservoir ground profile for range line 6 ........................ 27 9 Theodore Roosevelt Reservoir ground proffle for range line 7 ........................ 28 10 Theodore Roosevelt Reservoir ground profile for range line 8 ........................ 29 11 Theodore Roosevelt Reservoir ground profile for range line 9 ........................ 30 12 Theodore Roosevelt Reservoir ground profile for range line 10 ....................... 31 13 Theodore Roosevelt Reservoir ground profile for range line 11 ....................... 32 14 Theodore Roosevelt Reservoir ground profile for range line 12 ....................... 33 15 Theodore Roosevelt Reservoir ground profile for range line 13 ....................... 34 16 Theodore Roosevelt Reservoir ground profile for range line 14 ....................... 35 17 Theodore Roosevelt Reservoir ground profile