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Water-Year Summary for Site 01457500

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.



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  • 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.
Available Parameters
00010 Temperature, water(Max.,Mean,Min.)  
00060 Discharge(Mean)  
00065 Gage height(Max.,Min.)  

Water year 2024: 2024-10-01 to 2025-09-30
 

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USGS Water-Year Summary 2024
01457500 DELAWARE RIVER AT RIEGELSVILLE, NJ
LOCATION - Lat 40°35'41", long 75°11'23" referenced to North American Datum of 1983, Pohatcong Township, Warren County, NJ, Hydrologic Unit 02040105, on left bank, upstream side of suspension bridge at Riegelsville, 600 ft upstream from Musconetcong River (flow of which is included in the records for this station since Oct. 1, 1931), and at river mile 174.8.
DRAINAGE AREA - 6,328 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Continuous-record discharge station, water years 1906-71, and October 2018 to current year. Annual maximum gage, water years 1972-2007. Continuous-record gage-height station with annual maximum discharge, water years 2008-2018.
GAGE - Water-stage, precipitation, and water temperature recorder with telemetry. Datum of gage is 124.24 ft above NAVD of 1988.
REMARKS - Annual peak data can be obtained by selecting Peak streamflow from the 'Available data for this site' drop-down menu above or by using this link. Discharges above 160,000 ft³/s from rating curve extension on basis of slope-area computation of peak flow.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Oct 10, 1903 reached a gage height of 35.9 ft, discharge 275,000 ft³/s
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 340,000 ft³/s, from rating curve extended above 160,000 ft³/s on basis of slope-area computation of peak flow, Aug 19, 1955, gage height, 38.85 ft.
WATER-QUALITY RECORDS
PERIOD OF RECORD - DISCRETE DATA: Water years 1934, 1943, 1950, 1960-79, 1991 to June 2009. CONTINUOUS DATA: Water Temperature: March 2019 to current year.
REMARKS - The accuracy of continuous water-quality data can be found here.