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Water-Year Summary for Site 01452000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2021
LOCATION - Lat 40°37'23", long 75°28'58" referenced to North American Datum of 1927, Lehigh County, PA, Hydrologic Unit 02040106, on the right bank, 200 ft upstream from bridge on State Highway 145, 0.5 mi northwest of city limits of Allentown, and 2.5 mi upstream from mouth.
DRAINAGE AREA - 75.8 mi².
REVISIONS HISTORY - WDR PA-76-1: 1970(M), 1971.
PERIOD OF RECORD - October 1944 to current year.
GAGE - Water-stage recorder, crest-stage gage. Datum of gage is 259.20 ft. above NAVD88. Prior to September 17, 2013, gage included rubble masonry control at datum 2.0 ft higher. For history of changes prior to September 17, 2013, refer to WDR-US-2012. Satellite telemetry at station.
COOPERATION - 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, the Lehigh County Authority, and the U.S. Geological Survey.
REMARKS - Records for water years 2014-2016 are fair except those for estimated discharge, which is poor. Records for water years 2017-2020 are good except for estimated discharge, which is poor. Records for water year 2021 are fair.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 23, 1942, reached a stage of approximately 7.1 ft, from floodmarks 650 ft downstream.