Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
08390610 TWO RIVERS RESERVOIR (RIO HONDO RESERVOIR) NEAR ROSWELL, NM
LOCATION - Lat 33°17'58.46", long 104°43'31.84" referenced to North American Datum of 1983, Chaves County, NM, Hydrologic Unit 13060008, near center of Diamond A Dam on Rio Hondo, 13 mi southwest of Roswell at mile 33.4.
DRAINAGE AREA - 963 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1963 to September 1965 (monthend storage), October 1965 to December 2017 (daily observations of storage), September 2017 to current year (gage height).
GAGE - Water-stage recorder with satellite telemetry. Elevation of gage is NGVD of 1929 (levels by U.S. Army Corps of Engineers).
COOPERATION - Storage records were provided by U.S. Army Corps of Engineers.
REMARKS - Two Rivers Reservoir, completed July 16, 1963, is formed by earthfill dams on Rio Hondo, which forms Rio Hondo Reservoir, and on Rocky Arroyo, which forms Rocky Arroyo Reservoir. Above elevation 3,980.0 ft, the pools of the two reservoirs combine to form Two Rivers Reservoir with a total capacity of 163,800 acre-ft, at elevation 4,032.0 ft, crest of ungated spillway. Capacity by original survey was 167,900 acre-ft. Capacity of Rio Hondo Reservoir, 142 acre-ft, from capacity table dated Jan. 1990, between elevations 3,957.0 ft, sill of outlet gate, and 3,980.0 ft. Capacity of Rocky Arroyo Reservoir, 12,860 acre-ft, from capacity table dated January 1990, between elevations 3,945.0 ft, sill of outlet gate, and 3,980.0 ft. No dead storage in Rio Hondo Reservoir or Rocky Arroyo Reservoir. Primary objective of project is flood control. Outlet conduits in Rocky Dam have fixed openings.
