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:
Lat 40°40'40", long 74°52'45"
referenced to North American Datum of 1983, Clinton Township, Hunterdon
County, NJ, Hydrologic Unit 02030105, on left bank, 0.7 mi upstream of
dam at Lake Solitude, 1.0 mi northeast of High Bridge, and 4.4 mi
upstream from Spruce Run.
PERIOD OF RECORD.--
Continuous-record discharge station October
1918 to current year. Monthly discharge only for some periods,
published in WSP 1302.
WSP 601: 1924. WSP 781: Drainage area. WSP
1552: 1919(M), 1920(M), 1921, 1923, 1924(M), 1927-28(M), 1934(M),
Water-stage recorder with telemetry and crest-stage gage.
Concrete control since Sep 28, 1930. Datum of gage is 282.10 ft above
NGVD of 1929 (levels from New Jersey Geological Survey benchmark).
Prior to Sep 30, 1921, reference point at same site and datum.
Records fair, except for estimated discharges, which
are poor. Discharges above 2,400 ft3
/s from rating curve
extension on basis of contracted opening calculation. Occasional
regulation at low flow from unknown source.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 6,910
/s, Jan 25, 1979, gage height, 12.07 ft, from rating
curve extended above 2,400 ft3
/s on basis of contracted
opening computation; maximum gage height, 14.26 ft, Jan 28, 1994, as a
result of an ice jam; minimum discharge, 6.6 ft3
/s, Oct 11,
EXTREMES OUTSIDE PERIOD OF RECORD.--
Floods of Feb 6, 1896, Mar
2, 1902, and Oct 9, 1903 reached discharges at High Bridge of 7,560
/s, 3,840 ft3
/s, and 2,670 ft3
respectively (according to reports of the New Jersey State
National Weather Service flood stage for
this gage is 10 ft.