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
analysis.
Funding for this site is provided by:
SURFACE-WATER RECORDS
LOCATION.--Lat 41°06'22", long 74°57'09"
referenced to North American Datum of 1983, Walpack Township, Sussex
County, NJ, Hydrologic Unit 02040104, on right bank, 1.0 mi upstream
from Flatbrookville, 1.5 mi upstream from mouth, and 5.3 mi southwest
of Walpack Center.
DRAINAGE AREA.--64.0 mi
2.
PERIOD OF RECORD.--July 1923 to current year.
REVISED RECORDS.--WSP 1432: 1924(M), 1928(M), 1929, 1930(M),
1932, 1933(M), 1936, 1938(M), 1939-40, 1949(M), 1952-53(M). WDR
NJ-80-2: 1970(M). WDR NJ-82-2: Drainage area.
GAGE.--Water-stage recorder with telemetry and crest-stage gage.
Concrete control since Aug 19, 1929. Datum of gage is 347.73 ft above
NGVD of 1929. Prior to Jan 6, 1926, non-recording gage at same site and
datum.
REMARKS.--Records fair, except for estimated discharges, which
are poor. Flow occasionally regulated by ponds above station.
Discharges above 4,500 ft
3/s from rating curve extension on
basis of slope-area measurement of peak flow at gage height 12.58
ft.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 10,200
ft
3/s, gage height, 12.94 ft, from high-water mark in gage
house, Aug 28, 2011, from rating curve extended above 4,500
ft
3/s on basis of slope-area measurement of peak flow at
gage height 12.58 ft; minimum discharge, 3.6 ft
3/s, Sep 25,
1964.
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1923-24, 1956-57, 1959-80, 1993,
1995, 1997 to current year.
REMARKS.--Discrete water-quality data were collected as part of
the
New Jersey Ambient Surface-Water-Quality Monitoring Network.
Peak
Flood Chart

National Weather Service flood stage for
this gage is 6 ft.
Rain
gage data is available from this location at this link