Funding for this site is provided by:
--01576000 SUSQUEHANNA RIVER AT MARIETTA, PA
--Lat 40`03'16", long
76`31'52", Lancaster County, Hydrologic Unit 02050306, on left
bank 420 ft upstream from Chickies Creek, and 1.0 mi downstream from
Marietta. Records include flow of Chickies Creek.
--25,990 square miles, includes that of
PERIOD OF RECORD.
--October 1931 to current year.
--Water-stage recorder. Datum of gage is 200.56
ft above National Geodetic Vertical Datum of 1929.
--Funding for the operation of this
station is provided by the Pennsylvania Department of Environmental
Protection, Brookfield Renewable Energy Group, and the U.S. Geological
--There is considerable hourly fluctuation on
days when the daily discharge is less than 8,000 cfs due to the
operation of the York Haven power plant 11 miles upstream.
GAGE HEIGHTS OF IMPORTANCE
Supplied by USGS
: Maximum recordable gage height
(stage sensor operational limit) - 67.1 ft; Data transmitter
operational limit - 68.8 ft;
Supplied by NWS
: Action stage-44 ft, the right or west
bank overflows; Some roadways affected; Flood stage-49 ft, Front Street
in Wrightsville floods. Low lying areas of Rte 624 on the right or west
bank and along Rte 441 on the left or east bank are affected. Riverside
recreation area is inundated; Moderate flood stage-52 ft, a number of
residences in the Wrightsville and Columbia areas begin to be affected;
Major flood stage-54 ft, numerous homes and businesses in the Columbia
and Wrightsville areas are affected. The Wilton Company in Wrightsville
experience high water.