Monongahela River at Charleroi Lock and Dam
Westmoreland County, Pennsylvania
The past week
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What floods at each level
- 42.7 ft
Water reaches the flood of record...Election Day Flood event...November 5, 1985.
- 39.9 ft
Water reaches the level of the ST. Patricks Day Flood and crest on March 18, 1936.
- 37 ft
50 homes are flooded in Roscoe. Flooding also occurs in the towns of Elco, Allenport, and Stockdale.
- 36 ft
Several homes are flooded on Lynn Street in Roscoe.
- 35.9 ft
Water levels reach the flood levels of the flood of July 30, 2017.
- 35 ft
Backwater flooding in Monongahela along Pigeon Creek causes flood waters up to 4.5 feet in businesses in the lowest building in Penos Plaza and up to 6 feet in Armstrong Park. Backwater flooding spreads upstream along Pigeon Creek to the Route 43 overpass on Park Avenue.
- 34.1 ft
Division of American Chain and Cable Co. In Monessen floods.
- 33.15 ft
Water reaches the level reached on March 5, 2015.
- 33 ft
Flooding is widespread in Fayette City.
- 32 ft
Flooding occurs on Connellsville, Fourth, Cook, and Main Streets in Fayette City
- 31.6 ft
Lock walls overtopped.
- 30 ft
Backwater flooding along Pigeon Creek in Monongahela, begins to flood the lowest building in Penos Plaza, Armstrong Park, and closes Wall Street Bridge across Pigeon Creek.
- 29 ft
Navigation suspended, lock out of service.
- 28 ft
In Monongahela, backwater flooding along Pigeon Creek begins from the intersection of Park Way and Park Avenue.
- 26.3 ft
Water reaches the level reached during Hurricane Ivan September 18, 2004.
- 26 ft
Route 201 in closed due to flooding along Donner's Run.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Nov 4, 1985 | 42.7 ft | — |
| Mar 8, 1967 | 41.1 ft | — |
| Mar 17, 1936 | 39.9 ft | — |
More on Monongahela River
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