--01451500 LITTLE LEHIGH CREEK NEAR
--Lat 40`34'56", long
75`29'00", Lehigh County, Hydrologic Unit 02040106, on right
bank at downstream side of bridge on Lehigh Parkway in Allentown, 0.8
mi upstream from Cedar Creek, and 2.9 mi upstream from mouth.
--80.8 square miles.
PERIOD OF RECORD.
--October 1945 to current year. Prior
to October 1946, published as "at Allentown".
--Water-stage recorder, crest-stage gage. Prior
to October 14, 2014, gage included masonry control. Datum of gage is
253.41 ft above National Geodetic Vertical Datum of 1929. Satellite
telemetry at station.
Since removal of the dam, the natural
riffle has been shifting and the orifice needed to be moved downstream
into a more stable pool. Gage heights will be about 2 ft lower than
pre-Oct, 14 2014 levels; a new rating is being
--Station established and maintained by
the U.S. Geological Survey. Funding for the operation of this station
is provided by the Pennsylvania Department of Environmental Protection
and the U.S. Geological Survey through the Cooperative Water
GAGE HEIGHTS OF IMPORTANCE
Supplied by USGS
: Maximum recordable gage height
(stage sensor operational limit) - 10.8 ft; Data transmitter
operational limit - 11.8 ft;
Supplied by NWS
: Action stage-5 ft; Flood stage-6 ft;
Moderate flood stage-8 ft; Major flood stage-10 ft.