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°40'48", long 74°31'44"
referenced to North American Datum of 1983, Bernards Township, Somerset
County, NJ, Hydrologic Unit 02030103, on right bank 200 ft downstream
from Davis Bridge on Maple Avenue (County Route 657), 0.7 mi northwest
of Millington, and 1.8 mi downstream from Black Brook.
PERIOD OF RECORD.--
Continuous-record gaging station, November
1903 to June 1906 (published as "at Millington"), October
1921 to current year. Monthly discharges only for some periods
published in WSP 1302.
WSP 781: Drainage area. WSP 1552: 1905(M).
WDR NJ-96-1: 1936 (M), 1949 (M), 1971 (M), 1975 (M), 1979 (M),
Water-stage recorder with telemetry and crest-stage gage.
Datum of gage is 215.60 ft above NGVD of 1929 (levels from New Jersey
Geological Survey benchmark). Nov. 25, 1903 to July 15, 1906,
non-recording gage at bridge 0.8 mi downstream at different datum. Nov.
10, 1921 to Sept. 1, 1923, non-recording gage at site 200 ft downstream
at present datum. Oct. 31, 1923 to July 3, 1925, non-recording gage and
concrete control at present site and datum.
Records good, except for estimated discharges, which
are fair. Diversion from Osborn Pond by Commonwealth Water Company,
Bernards Division, was discontinued in April 1979 and the installation
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 2,290 ft³/s,
Oct 20, 1996, gage height, 9.89 ft; maximum gage height, 10.26 ft, Aug
29, 2011; minimum discharge, 0.20 ft³/s, Sep 12, 1966.
PERIOD OF RECORD.--
Water years 1923-25, 1959-98, 2004,
National Weather Service flood stage for this
gage is 8.0 ft.
Forecasts for this gage are issued by the National Weather Service
Forecast information is available here.
During the fall months, the apparent streamflow
at this station may be erroneously high due to the accumlation of