USGS 01451650 Little Lehigh Creek at Tenth St. Br. at Allentown

PROVISIONAL DATA SUBJECT TO REVISION

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Station gage imageSTATION.--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, water-quality monitor and concrete control. Datum of gage is 244.93 ft above North American Vertical Datum of 1988. Prior to November 7, 2022, the datum of gage was reported as 245.63 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
COOPERATION.--Diversion upstream for municipal water supply by city of Allentown. Monthly diversions were provided by the City of Allentown through Water Year 2016. 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) - 18.8 ft;
Supplied by NWS: Action stage-6 ft; Flood stage-8 ft; Moderate flood stage-10 ft; Major flood stage-12 ft.
This station managed by the PAWSC Downingtown Field Office.

Available Parameters Available Period
  
2019-10-11  2024-05-30
2007-10-01  2024-05-30
2007-10-01  2024-05-30
2019-11-09  2024-05-30
2021-10-01  2024-05-30
2020-08-21  2023-10-10







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius

Most recent instantaneous value: 18.5 05-30-2024   18:45 EDT
Graph of  Temperature, water, degrees Celsius

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Discharge, cubic feet per second

Most recent instantaneous value: 130 05-30-2024   18:45 EDT
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Daily discharge, cubic feet per second -- statistics for May 30 based on 37 water years of record more
Min
(1992)
25th
percen-
tile
Most Recent
Instantaneous
Value May 30
Median 75th
percen-
tile
Mean Max
(2019)
53.0 95 130 135 160 163 700


Gage height, feet

Most recent instantaneous value: 2.58 05-30-2024   18:45 EDT
Graph of  Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 594 05-30-2024   18:45 EDT
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Stream water level elevation above NAVD 1988, in feet

Most recent instantaneous value: 247.51 05-30-2024   18:45 EDT
Graph of  Stream water level elevation above NAVD 1988, in feet

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