❄️<a href="https://tinyurl.com/ysth3tn8">How Does Ice in Rivers and Streams Affect USGS Streamflow Data?</a> 💧<a href="https://waterdata.usgs.gov/monitoring-location/403541075112301">Rain gage data from this location at this link.</a>

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Available data

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Continuous data

3 data types available - data from 2007-10-01 to 2026-08-02

Daily data

3 data types available - data from 2005-10-01 to 2026-08-02

Field measurements

2 data types available - data from 1936-03-19 to 2026-06-05

Discrete sample data

382 Observed properties (data types) available - with data from 1934-08-14 to 2009-06-04

336 Sampling activities

Statistical tables for select daily data types

2 data types available - data from 2018-10-01 to 2026-08-02

Location details and information

Available location images

Delaware River at Riegelsville

Delaware River at Riegelsville NJ

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01457500	n/a
Location name	Delaware River at Riegelsville NJ	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	40.5947222222222	n/a
Decimal longitude (WGS84)	-75.1897222222222	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	New Jersey	34
State	New Jersey	34
County	Warren County	041
Country	United States of America	n/a
Altitude of gage/land surface	124.24 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.05 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Middle Delaware-Musconetcong	02040105
Drainage basin		n/a
Date of first construction		n/a
Drainage area	6328 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Delaware River at Riegelsville NJ - USGS-01457500