STATION.--01551500 WEST BRANCH SUSQUEHANNA RIVER AT WILLIAMSPORT, PA
LOCATION.--Lat 41`14'10", long 76`59'49", Lycoming County, Hydrologic Unit 02050206, on right bank 100 ft upstream from Market Street bridge at South Williamsport, and 350 ft upstream from Hagermans Run.
DRAINAGE AREA.--5,682 square miles.
PERIOD OF RECORD.--March 1895 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 494.98 ft above National Geodetic Vertical Datum of 1929. Mar. 1, 1895, to Sept. 30, 1928, non-recording gage at bridge 100 ft downstream at same datum. Prior to July 1980, 100 ft downstream on left bank at same datum. Satellite and landline telemetry at station.
COOPERATION.--Funding for the operation of this station is provided by the Pennsylvania Department of Environmental Protection, the City of Williamsport, and the U.S. Geological Survey.
GAGE HEIGHTS OF IMPORTANCE.-
Supplied by USGS: Maximum recordable gage height (stage sensor operational limit) - 41.0 ft; Data transmitter operational limit - 42.4 ft;
Supplied by NWS: Action stage-10 ft; Flood stage-20 ft, high water affects a few homes and some roadways in areas not protected by levee system; camping area west of Williamsport significantly affected; Moderate flood stage-21 ft, a number of residences and roads in the area outside the levee system are affected; Major flood stage-30 ft, many homes and businesses outside the levee system are affected by high water.