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During winter months, cold and ice may result in inaccurate real-time gage height and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.

USGS 01455500 Musconetcong River at outlet of Lake Hopatcong NJ


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Estimated flood stage for this gage is 4 feet.

Rain gage data are available from this location at this link.

Lake level data for Lake Hopatcong are available at this link.

This gage is funded by the New Jersey Department of Environmental Protection, Division of Watershed Management.

gage photoLOCATION. --Lat 40°55'02", long 74°39'56" referenced to North American Datum of 1983, Roxbury Township, Morris County, NJ, Hydrologic Unit 02040105, on left bank just upstream of highway bridge on Lakeside Boulevard (County Route 607), 300 ft downstream from Lake Hopatcong Dam in Landing.
DRAINAGE AREA. --25.3 mi2.
PERIOD OF RECORD. --Continuous-record gaging station, July 1928 to September 1975, April 2002 to current year. Annual maximum, water years 1976 to 1995, 2000.
GAGE. --Water-stage and rain recorder and concrete control. Prior to August 24, 1967, concrete control at site 40 ft downstream. Datum of gage is 904.99 ft above NGVD of 1929 (New Jersey Geological Survey benchmark). Streamflow at this station may be occasionally affected by releases from and change in storage in Lake Hopatcong.
COOPERATION. --Lake Hopatcong Commission.
EXTREMES FOR PERIOD OF RECORD. --Maximum contents, 9,745,000,000 gal, Aug. 13, 2000, gage height, 11.80 ft; minimum, 1,525,000,000 gal, Dec. 29, 1960, gage height, 0.65 ft.

Boating safety tips

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
All 2 Available Parameters for this site
00060 Discharge 2007-10-01  2016-10-01
00065 Gage height 2007-10-01  2016-10-01

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Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 12   10-01-2016   04:15 EDT
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Daily discharge, cubic feet per second -- statistics for Oct 1 based on 60 years of record more
Most Recent
Value Oct 1
Median Mean 75th
0.36 12 17 31 59 59 358

Gage height, feet

Most recent instantaneous value: 1.30   10-01-2016   04:15 EDT
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