--01451000 LEHIGH RIVER AT WALNUTPORT,
--Lat 40`45'25", long
75`36'12", Northampton County, Hydrologic Unit 02040106, on
left bank 0.3 mi upstream from highway bridge at Walnutport, and 0.4 mi
upstream from Trout Creek.
PERIOD OF RECORD.
--October 1946 to current year.
--Water-stage recorder, crest-stage gage, and
climatological sensor. Datum of gage is 350.27 ft above National
Geodetic Vertical Datum of 1929. Satellite and landline telemety at
GAGE HEIGHTS OF IMPORTANCE
Supplied by USGS
: Maximum recordable gage height
(stage sensor operational limit) - 22.2 ft; Data transmitter
operational limit - 23.6 ft;
Supplied by NWS
: Action stage-7.5 ft, at 6 ft, minor
flooding begins downstream at Catasaqua and Hokendaqua; Flood stage-8
ft; Moderate flood stage-12 ft, at 13 ft, flooding begins just
downstream from the Slatington Walnutport Bridge; Major flood stage-16
EXTREMES OUTSIDE PERIOD OF RECORD.
known, 20.6 ft, May 23, 1942, from floodmarks, discharge not
--Funding for the operation of 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.
|The 15-minute precipitation data for this station are
temporary and will only be displayed for 120 days. Time series
of 1-hour or cumulative daily values will NOT be available for
retrieval following the 120-day display period. Although the
instrumentation is calibrated at least once a year, the temporary
classification means that documented routine inspections and other
quality assurance measures are not performed that would make the
data acceptable for archival, retrieval, or future use in general
scientific or interpretive studies.