USGS Water-Year Summary 2021
01451000 LEHIGH RIVER AT WALNUTPORT, PA
LOCATION - Lat 40°45'25", long 75°36'12" referenced to North American Datum of 1927, Northampton County, PA, Hydrologic Unit 02040106, on left bank 0.3 mi upstream from bridge on SR 4022 at Walnutport, and 0.4 mi upstream from Trout Creek.
DRAINAGE AREA - 889 mi².
PERIOD OF RECORD - October 1946 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 350.27 ft above National Geodetic Vertical Datum of 1929. Satellite and landline telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey. Funding for this station is provided by the U.S. Army Corps of Engineers, Philadelphia District, the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey through the National Streamflow Information Program.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known, 20.6 ft, May 23, 1942, from floodmarks, discharge not determined.