STATION.--01451650 LITTLE LEHIGH CREEK AT TENTH STREET BRIDGE AT ALLENTOWN, PA
LOCATION.--Lat 40`35"47', long 75`28'28", Lehigh County, Hydrologic Unit 02040106, on left bank at bridge on Tenth Street, and 0.9 mi upstream from confluence with Jordan Creek in Allentown, Pa.
DRAINAGE AREA.--98.2 square miles.
PERIOD OF RECORD.--October 1986 to current year.
GAGE.--Water-stage recorder, crest-stage gage and concrete control. Datum of gage is 245.63 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
COOPERATION.--Records of diversion provided by the City of Allentown. Funding for the operation of the station is provided by the Lehigh County Authority.
GAGE HEIGHTS OF IMPORTANCE.-
Supplied by USGS: Maximum recordable gage height (stage sensor operational limit) - 17.9 ft; Data transmitter operational limit - 18.8 ft;
Supplied by NWS: Action stage-6 ft; Flood stage-8 ft; Moderate flood stage-10 ft; Major flood stage-12 ft.