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
Funding for this site is provided by:
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
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.
WSP 781:1928(M). WSP 1051:1944-1945. WDR
NJ-78-2: 1976(M). WDR NJ-82-2: Drainage area. WDR
Water-stage and precipitation recorder with telemetry 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).
Records fair, except for estimated daily discharges,
which are poor. Flow regulated by Lake Hopatcong (see 01455400).
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 1,900
/s, Aug 13, 2000, from computation of peak flow over dam;
maximum gage height, 10.90 ft, Aug 13, 2000, from high-water mark in
gage house (level of Lake Hopatcong highest since dam was built in
1828); minimum discharge, 0.0 ft3
/s, Jan 1, 1900.
Estimated flood stage for this gage is 4
Rain gage data are available from this location at this link.
Lake level data for Lake Hopatcong are available at this link.