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°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.--
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
/s, from rating curve extended above 500 ft3
on basis of logarithmic extrapolation, Apr 16, 2007, gage height, 6.90
ft, from high-water mark; minimum discharge, 0.00 ft3
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.