STATION.--03085000 MONONGAHELA RIVER AT BRADDOCK,
LOCATION.--Lat 40`23'28", long
79`51'30", Allegheny County, Hydrologic Unit 05020005, near
right bank on river guide wall 300 ft upstream from dam at lock 2 at
Braddock, 1,700 ft downstream from Turtle Creek, and 11.2 mi upstream
from confluence with Allegheny River.
DRAINAGE AREA.--7,337 mi2.
PERIOD OF RECORD.--October 1938 to current year.
Monthly discharge only for some periods, published in WSP 1305.
GAGE.--Water-stage recorder and fixed-crest concrete
dam control with streamward lock chamber usable as floodway during high
flow since 1951. Datum of gage is 709.66 ft above sea level (U.S. Army
Corps of Engineers bench mark). Prior to Aug. 13, 1951, at site 700 ft
upstream, and Aug. 13, 1951 to Nov. 8, 1990 at present site at datum
2.50 ft lower.
GAGE HEIGHTS OF IMPORTANCE.-
Supplied by NWS: Action stage-18.2 ft; Flood stage-22
ft; Moderate flood stage-23 ft; Major flood stage-24 ft.
REMARKS.--Flow regulated by locks and hydroelectric
plants, since 1938 by Tygart Lake, since 1926 by Lake Lynn, since 1925
by Deep Creek Reservoir, and since 1943 by Youghiogheny River Lake,
combined capacity, 704,300 acre-ft. U.S. Army Corps of Engineers
satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Mar. 18,
1936 reached a stage of 38.8 ft from floodmarks, discharge, 210,000
COOPERATION.--Funding for the operation of this
station is provided by the U.S. Army Corps of Engineers, Pittsburgh