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El Vado Reservoir 2007 Sedimentation Survey

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El Vado Reservoir 2007 Sedimentation Survey El Vado Reservoir 2007 Sedimentation Survey U.S. Department of the Interior Bureau of Reclamation Technical Service Center Denver, Colorado July 2008 El Vado Reservoir 2007 Sedimentation Survey prepared by Ronald L. Ferrari U.S. Department of the Interior Bureau of Reclamation Technical Service Center Water and Environmental Resources Division Sedimentation and River Hydraulics Group Denver, Colorado July 2008 ACKNOWLEDGMENTS The Bureau of Reclamation's (Reclamation) Sedimentation and River Hydraulics (Sedimentation) Group of the Technical Service Center (TSC) prepared and published this report. Ronald Ferrari of the Sedimentation Group and Sharon Nuanes of the Water Resources Planning and Operations Support Group of the TSC conducted the bathymetry survey of the reservoir in June of 2007. Anthony Vigil of Reclamation’s Albuquerque Area Office of the Upper Colorado Region was the study coordinator with additional field support provided by Chama Field Division personnel. Ron Ferrari completed the data processing to generate the new reservoir topography and resulting area-capacity tables. Kent Collins of the Sedimentation Group 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 Indian Tribes and our commitments to island communities. 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. Reclamation Report This report was produced by the Bureau of Reclamation’s Sedimentation and River Hydraulics Group (Mail Code 86-68240), PO Box 25007, Denver, Colorado 80225-0007, www.usbr.gov/pmts/sediment/. Disclaimer No warranty is expressed or implied regarding the usefulness or completeness of the information contained in this report. References to commercial products do not imply endorsement by the Bureau of Reclamation and may not be used for advertising or promotional purposes. Form Approved REPORT DOCUMENTATION PAGE OMB No. 0704-0188 The public 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 collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYY) 2. REPORT TYPE 3. DATES COVERED (From – To) July 2008 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER El Vado Reservoir 5b. GRANT NUMBER 2007 Sedimentation Survey 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER Ronald L. Ferrari 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER Bureau of Reclamation, Technical Service Center, Denver, CO 80225 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S) Bureau of Reclamation, Denver Federal Center, PO Box 25007 Denver, CO 80225-0007 11. SPONSOR/MONITOR'S REPORT NUMBER(S) 12. DISTRIBUTION/AVAILABILITY STATEMENT 13. SUPPLEMENTARY NOTES 14. ABSTRACT Reclamation surveyed El Vado Reservoir in June 2007 to develop updated reservoir topography and compute the present storage-elevation relationship (area-capacity tables). The underwater survey, conducted near water surface elevation 6,900 (project datum in feet), used sonic depth recording equipment interfaced with a real-time kinematic (RTK) global positioning system (GPS) that provided continuous sounding positions throughout the underwater portion of the reservoir covered by the survey vessel. Digitized reservoir contours from the U.S. Geological Survey quadrangle (USGS quad) maps were used to compute the reservoir areas and resulting capacities from elevation 6,902.0 through 6,912.0. As of June 2007, at elevation 6,902.0, the surface area was 3,232 acres with a total capacity of 190,820 acre-feet. Since the January 1935 dam closure, about 7,382 acre-feet of change has occurred below elevation 6,902.0 due to sediment deposition, resulting in a 3.7 percent loss in reservoir volume. Unknowns in the detail and accuracy of the previous surveys introduce uncertainty to the sediment computation values. The 2007 study used the contour method for collection and analysis resulting in a larger computed reservoir volume than the 1984 study that used the range line method for collection and analysis. 15. SUBJECT TERMS reservoir area and capacity/ sedimentation/ reservoir surveys/ global positioning system/ sounders/ contour area/ RTK GPS/ multibeam/ 16. SECURITY CLASSIFICATION OF: 17. LIMITATION 18. NUMBER 19a. NAME OF RESPONSIBLE PERSON OF ABSTRACT OF PAGES a. REPORT b. ABSTRACT a. THIS PAGE 19b. TELEPHONE NUMBER (Include area code) Standard Form 298 (Rev. 8/98) Prescribed by ANSI Std. Z39.18 Table of Contents Page 1 Introduction......................................................................................................................................1 Summary and Conclusions............................................................................................................... 3 Control Survey Data Information.....................................................................................................4 Reservoir Operations........................................................................................................................5 Hydrographic Survey Equipment and Method.................................................................................6 Reservoir Area and Capacity..........................................................................................................13 Topography Development.......................................................................................................13 Lateral Distribution .................................................................................................................14 Development of the 2007 El Vado Reservoir Surface Areas ..................................................33 2007 Storage Capacity ............................................................................................................39 2007 Reservoir Sediment Analyses................................................................................................43 References......................................................................................................................................45 Index of Figures Page Figure 1 - Reclamation reservoirs located in New Mexico. .............................................................1 Figure 2 - Temporary Point set near reservoir, June 2007................................................................5 Figure 3 - Survey Vessel with Mounted Instrumentation on El Vado Reservoir, New Mexico.......7 Figure 4 - Multibeam Collection System. .......................................................................................8 Figure 5 – El Vado Reservoir 2007 survey data points..................................................................11 Figure 6 - El Vado Reservoir Contour Map, 1 of 2........................................................................15 Figure 7 - El Vado Reservoir Contour Map, 2 of 2........................................................................17 Figure 8 - El Vado Reservoir Sedimentation Ranges Developed in 1984......................................19 Figure 9 - Range Line 1, Rio Chama..............................................................................................21 Figure 10 - Range Line 2, Rio Chama............................................................................................21 Figure 11 - Range Line 3, Rio Chama............................................................................................22 Figure 12 - Range Line 4, Rio Chama............................................................................................22 Figure 13 - Range Line 6, Rio Chama and Boulder Creek.............................................................23 Figure 14 - Range Line 7, Rio Chama and Boulder Creek.............................................................23 Figure 15 - Range Line 8, Rio Chama and Boulder Creek.............................................................24 Figure 16 - Range Line 10, Rio Chama..........................................................................................24 Figure 17 - Range Line 11, Rio Chama..........................................................................................25 Figure 18 - Range Line 14, Rio Chama..........................................................................................25 Figure 19 - Range Line 15, Rio Chama..........................................................................................26 Figure 20 - Range Line 16, Rio Chama..........................................................................................26
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