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°56'58", long 74°33'26"
referenced to North American Datum of 1983, Rockaway Township, Morris
County, NJ, Hydrologic Unit 02030103, on left bank 100 ft upstream from
bridge on Whitmore Avenue at Picatinny Arsenal, 200 ft downstream from
dam on Picatinny Lake, and 4.4 mi north of Dover.
PERIOD OF RECORD.--
Continuous-record discharge station, October
1984 to current year.
WDR NJ-90-1: 1987 (M).
Water-stage recorder with telemetry and concrete control.
Datum of gage is 694.91 ft above NGVD of 1929 (U.S. Army, Picatinny
Records fair, except for estimated discharges, which
are poor. Flow occasionally regulated by Picatinny Lake 200 ft upstream
from station. Discharges above 500 ft³/s from rating curve extension on
basis of logarithmic extrapolation.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 1,300 ft³/s,
from rating curve extended above 500 ft³/s on basis of logarithmic
extrapolation, Apr 16, 2007, gage height, 6.90 ft, from high-water
mark; minimum discharge, 0.00 ft³/s, Dec 31, 2001.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Flood of April 5, 1984
reached an elevation of 699.0 ft above NGVD of 1929 (200 ft upstream
from bridge on Whitmore Avenue).
Rain gage data is available from this location at this link.