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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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USGS 01446500 Delaware River at Belvidere NJ

PROVISIONAL DATA SUBJECT TO REVISION

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SURFACE-WATER RECORDS

Gage Photo 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.
PERIOD OF RECORD.--Continuous-record discharge station, October 1922 to current year.
REVISIONS HISTORY.--WSP 781:1933(M). WSP 951:1940-41, Drainage area. WSP 1432:1923, 1924(M). WDR US-2006:1904(M).
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.
REMARKS.--Records good, except for estimated discharges, which are fair. Diurnal fluctuations at medium and low flow caused by powerplants on tributary streams. Flow regulated by Lake Wallenpaupack and by Pepacton, Cannonsville and Neversink Reservoirs, and many smaller reservoirs. Diversion from Pepacton, Cannonsville, and Neversink Reservoirs. Discharges above 170,000 ft³/s from rating curve extension on basis of flood-routing study.
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.
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.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--
Continuous Data:
Specific Conductance: June 2019 to current year.
Water Temperature: June 2019 to current year.
REMARKS.--The accuracy of continuous water-quality data can be found here.

Web Camera
To view an interactive hydrograph and time lapse, click on above webcam image above.
To view other USGS webcams, click here.
Peak Flood Chart

National Weather Service flood stage for this gage is 22.0 ft.

Forecasts for this gage are issued by the National Weather Service routinely year-round.
Forecast information is available here.

NOTICE: The continuous water-quality monitor is located on the left bank of the Delaware River. Water-quality parameters at this location are predominately influenced by the Pequest River which enters the Delaware River 800 ft upstream of gage and may not be representative of the entire Delaware River channel at this location.



This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
  
2019-08-19  2022-08-18
1981-10-01  2022-08-18
2007-10-01  2022-08-18
2019-08-19  2022-08-18







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius, at left bank

Most recent instantaneous value: 23.1 08-18-2022   11:30 EDT
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Discharge, cubic feet per second

Most recent instantaneous value: 1770 08-18-2022   11:30 EDT
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Daily discharge, cubic feet per second -- statistics for Aug 18 based on 98 water years of record more
Min
(1954)
Most Recent
Instantaneous
Value Aug 18
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(1947)
828 1770 2140 2590 3910 4150 17000


Gage height, feet

Most recent instantaneous value: 3.36 08-18-2022   11:30 EDT
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