USGS Water-Year Summary 2024

08319000 RIO GRANDE AT SAN FELIPE, NM

LOCATION - Lat 35°26'40.5", long 106°26'23.4" referenced to North American Datum of 1983, Sandoval County, NM, Hydrologic Unit 13020201, in San Felipe Grant, on right bank 200 ft downstream from Tonque Arroyo, 1,700 ft upstream from steel highway bridge, 0.8 mi upstream from San Felipe Pueblo, 11 mi northeast of Bernalillo, and at mile 1,572.7.

DRAINAGE AREA - 16,100 mi² of which 2,940 mi² probably is noncontributing. (from the closed basin in San Luis Valley, Colorado)

REVISIONS HISTORY - WSP 1312: 1926-30. WSP 1392: 1937(M). WSP 1512: 1931-32, 1933(M), 1934-36, 1938(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1925 to current year. Monthly discharge only for some periods, published in WSP 1312.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Datum of gage is 5,115.73 ft above NGVD of 1929. Prior to Sept. 27, 1957, at site 1,800 ft downstream at datum 5.35 ft lower, except May 16, 1945, to Sept. 30, 1946, when it was 5.94 ft lower than present datum.

REMARKS - Water years 2014-2019; records good except for estimated discharges, which are poor. Flow completely regulated since Nov. 1973 by Cochiti Dam (station 08317400) 17 mi upstream. Prior to Nov. 1973, some regulation of flow by El Vado Reservoir (station 08285000) and Abiquiu Reservoir (station 08286900). Since May 1971, flow affected by release of transmountain water from Heron Reservoir (station 08284510). Diversions for irrigation of about 705,000 acres upstream from station, some of which are irrigated downstream by Cochiti Eastside Main canal (station 08313500) and San Felipe eastside acequia, which bypass station.

EXTREMES OUTSIDE PERIOD OF RECORD - Major floods occurred in 1874, 1884, and 1904.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1975 to current year.