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USGS 01455400 Lake Hopatcong at Landing NJ


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The gage height of the crest of the dam at Lake Hopatcong is 9.0 feet. NJ State Police high-water level is 9.5 feet. At lake levels above the high-water level, boat speeds are greatly restricted and no wakes are allowed.

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

Streamflow data at the outlet of 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°55'03", long 74°39'51" referenced to North American Datum of 1983, Roxbury Township, Morris County, NJ, Hydrologic Unit 02040105, in gatehouse of Lake Hopatcong Dam on Musconetcong River at Landing.
DRAINAGE AREA. --25.3 mi2.
PERIOD OF RECORD. --February 1887 to current year.
GAGE. --Staff gage and water-stage recorder re-installed March 12, 2004. Prior to June 24, 1928, daily readings obtained by measuring from high-water mark to water surface converted to gage height, present datum. Datum of gage is 914.57 ft above National Geodetic Vertical Datum of 1929.
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 1 Available Parameters for this site
00065 Gage height 2007-10-01  2016-10-01

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Gage height, feet

Most recent instantaneous value: 7.84   10-01-2016   06:15 EDT
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