SURFACE-WATER RECORDS
LOCATION.--Lat 40°38'58", long 74°40'54" referenced to North American Datum of 1983, Bedminster Township, Somerset County, NJ, Hydrologic Unit 02030105, on right bank just upstream of low dam, 1,200 ft upstream of bridge on River Road East (Cutting Whitney Road), 2,400 ft downstream of Hoopstick Brook, 1.2 mi northeast of Burnt Mills, and 2.2 mi west of Pluckemin.
DRAINAGE AREA.--6.67 mi².
PERIOD OF RECORD.--Low-flow partial-record station, water years 1964-67, 1975. Continuous-record discharge station, June 2006 to current year.
GAGE.--Water-stage recorders with telemetry and crest-stage gages upstream and downstream of concrete dam with stainless-steel v-notch in the center. Datum of gage is 95 ft above NAVD of 1988 from topographic map.
REMARKS.--Records fair, except for estimated discharges, which are poor. Flow past station may be affected by irrigation pumpage upstream of gage. Stage-discharge relationship can be affected by variable-stage backwater from North Branch Raritan River. A downstream auxiliary gage at station is used when variable stage backwater conditions exist.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,570 ft³/s, Aug 28, 2011, gage height, 10.79 ft; maximum gage height, 12.45 ft, Aug 28, 2011, affected by backwater from North Branch Raritan River; minimum discharge, 0.00 ft³/s, many days.

Peak Flood Chart

National Weather Service flood stage for this gage is 9.5 ft.