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Water-Year Summary for Site 01112500

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
01112500 BLACKSTONE RIVER AT WOONSOCKET, RI
LOCATION - Lat 42°00'23", long 71°30'11" referenced to North American Datum of 1927, Providence County, RI, Hydrologic Unit 01090003, on right bank 50 ft upstream from Peters River pressure conduit at Woonsocket. Records include flow of Peters River.
DRAINAGE AREA - 416 mi².  
REVISIONS HISTORY - WSP 756: Drainage area. WSP 781: 1931(M). WSP 871: 1938. WSP 1051: 1931.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge: February 1929 to current year. Water-quality records: Water years 1952-53, 1957-58, 1962-67.
GAGE - Data Collection Platform with satellite telemeter. Datum of gage is 106.64 ft above NAVD 1988, from levels. Prior to May 5, 2020, datum of gage reported as 107.42 ft above NGVD 1929, from levels.
COOPERATION - Ocean State Power.
REMARKS - Records fair except those for periods of estimated discharges, which are poor. Flow regulated by powerplants, by West Hill Reservoir since May 1961, and by other reservoirs upstream. Extremes and figures of daily discharge include flow diverted from Nashua River basin and, at times since January 1966, from Quabbin Reservoir for supply of Worcester, MA, and, prior to July 1964, flow diverted around station in Hamlet Trench.

The historical peak flow of 32,900 cfs on Aug. 19, 1955 is based on rating curve extended above 15,000 ft³/s on the basis of slope-area measurement of peak flow.

The historical peak stage of 21.80 ft is from floodmarks.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water-quality records: Water years 1952-53, 1957-58, 1962-67.