USGS Water-Year Summary 2019
09169500 DOLORES RIVER AT BEDROCK, CO
LOCATION - Lat 38°18'37", long 108°53'05" referenced to North American Datum of 1927, in NW 1/4 SW 1/4 sec.20, T.47 N., R.18 W., Montrose County, CO, Hydrologic Unit 14030002, on right bank at upstream side of bridge, 0.4 mi southeast of Bedrock, and 3.1 mi upstream from East Paradox Creek.
DRAINAGE AREA - 2,025 mi².
- WDR-US-2011: Drainage area.
PERIOD OF RECORD - October 1917 to September 1922 (monthly discharge only for some periods, published in WSP 1313), August 1971 to current year. Statistical summary computed for 1985 to current year, subsequent to regulation by McPhee Reservoir.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 4,940 ft above NGVD of 1929, from topographic map. Prior to Aug. 1, 1971, nonrecording gage at different datum. Since Aug. 2, 2016, the gage is located with the monitor, along the right bank, approximately 275 ft upstream of Hwy 90, during the 2016-17 bridge reconstruction.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Sept. 6, 1970, reached a stage of 7.15 ft, present datum, from floodmarks (discharge not determined).