--01452500 MONOCACY CREEK AT BETHLEHEM,
--Lat 40`38'28", long
75`22'47", Northampton County, Hydrologic Unit 02040106, on
right bank 40 ft downstream from highway bridge at entrance to Monocacy
Park at Bethlehem, and 2.1 mi upstream from mouth.
PERIOD OF RECORD.
--October 1948 to current year.
--Water-stage recorder and crest-stage gage.
Concrete control since July 17,1969. Datum of gage is 247.24 ft above
National Geodetic Vertical Datum of 1929 (levels by U.S. Army Corps of
Engineers). Prior to May 15, 1962, non-recording gage at site 40 ft
upstream at same datum. Satellite telemetry at station.
GAGE HEIGHTS OF IMPORTANCE
Supplied by USGS
: Data transmitter operational
Supplied by NWS
: No flood stage has been determined
for this station.
EXTREMES OUTSIDE PERIOD OF RECORD.
--Flood of July 10,
1945, reached a stage of 9.74 ft, from floodmarks, discharge, 5,200
ft3/s, by slope-area measurement.
--Station established and maintained by
the U.S. Geological Survey. Funding for the operation of this station
is provided by the City of Allentown, the Pennsylvania Department of
Environmental Protection and the U.S. Geological Survey through the
Cooperative Water Program.