USGS Water-Year Summary 2021
01446500 DELAWARE RIVER AT BELVIDERE, NJ
LOCATION - Lat 40°49'35", long 75°04'57" referenced to North American Datum of 1983, Belvidere Town, Warren County, NJ, Hydrologic Unit 02040105, on left bank at Belvidere, 800 ft downstream from Pequest River, 1,200 ft southeast of Riverton, PA, and at river mile 197.7.
DRAINAGE AREA - 4,535 mi².
- WSP 781:1933(M). WSP 951:1940-41, Drainage area. WSP 1432:1923, 1924(M). WDR US-2006:1904(M).
PERIOD OF RECORD - Continuous-record discharge station, October 1922 to current year.
GAGE - Water-stage recorder with telemetry. Datum of gage 226.17 ft above NAVD of 1988. Prior to Jan 1, 1929, non-recording gage at site 200 ft upstream at same datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Oct 10, 1903 reached a stage of 28.6 ft, from floodmark, discharge, 250,000 ft³/s, from rating curve extended above 170,000 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 273,000 ft³/s, from rating curve extented above 170,000 ft³/s on basis of flood-routing study, Aug 19, 1955, gage height, 30.21 ft, from high-water mark in gage house; minimum discharge, 609 ft³/s, Sep 28, 1943.
PERIOD OF RECORD -
Specific Conductance: June 2019 to current year.
Water Temperature: June 2019 to current year.