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|Data Type||Begin Date||End Date||Count|
|Current / Historical Observations (availability statement)||2007-10-01||2014-09-23|
|Discharge, cubic feet per second||1902-10-01||2014-09-22||39074|
|Discharge, cubic feet per second||1902-10-01||2014-03-09||38877|
|Discharge, cubic feet per second||1902-10||2014-03|
|Discharge, cubic feet per second||1903||2014|
|Field/Lab water-quality samples||1958-10-15||1972-12-06||132|
Additional Data Sources
|Instantaneous-Data Archive **offsite**||1986-10-01||2007-09-30||317362|
|Annual Water-Data Report (pdf) **offsite**||2006||2013||8|
STATION.--01453000 LEHIGH RIVER AT BETHLEHEM, PA
LOCATION.--Lat 40`36'55", long 75`22'45", Lehigh County, Hydrologic Unit 02040106, on left bank 110 ft upstream from bridge on New Street at Bethlehem, and 1,800 ft upstream from Monocacy Creek. Records include flow of Monocacy Creek.
DRAINAGE AREA.--1,279 mi2 (includes that of Monocacy Creek). At site used prior to Oct. 1, 1928, 1,229 mi2.
PERIOD OF RECORD.--October 1902 to January 1905, May 1909 to current year. Monthly discharge only for some periods, published in WSP 1302. Published as "at South Bethlehem" prior to October 1913.
GAGE.--Water-stage recorder. Datum of gage is 210.94 ft above sea level. Prior to October 1928, nonrecording gage at New Street bridge 120 ft downstream at same datum. Oct. 1, 1928, to Sept. 30, 1962, water-stage recorder at site 4,250 ft downstream at datum 2.49 ft lower. Oct. 1, 1963, to Dec. 14, 1975, water-stage recorder at site 40 ft downstream at same datum.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Feb. 28, 1902 reached a stage of 24.9 ft, from floodmark, present site and datum, discharge, about 88,000 ft3/s.
FLOOD STAGE.--NOAA, National Weather Service river forecast station flood stage provided to USGS April 1999 is 16 feet.
COOPERATION.--Funding for the operation of this station is provided by the U.S. Army Corps of Engineers and the U.S. Geological Survey.