Allegheny River at Kittanning Lock and Dam, PA
River level and flood forecast · Armstrong County
The river is 10.1 ft below flood stage (21 ft).
Forecast to fall to 10.5 ft by Sat, Oct 17, 8 AM.
Flow: 8,470 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 9:20 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 23 ft |
| Moderate flood stage | 22 ft |
| Flood stage | 21 ft |
| Action stage | 17 ft |
| Record crest (March 26, 1913) | 30.7 ft |
What floods at each level
From the National Weather Service, highest first.
- 28.6 ftWater overtops flood wall from near Chestnut Street to Ewing Street above the dam.
- 24.8 ftCounty Health Center on South McKean Street floods.
- 21.2 ftSouth Water Street, Mulberry Street and Arch Street flood.
- 19.6 ftLock walls overtopped.
- 17 ftNavigation suspended, lock out of service.
Highest crests on record
- 30.7 ft — March 26, 1913
- 24.8 ft — March 10, 1964
- 24.6 ft — January 22, 1959
- 24.2 ft — March 18, 1936
- 23.7 ft — June 23, 1972
Recent crests: 19.74 ft (February 19, 2022) · 17.97 ft (February 8, 2019) · 20.47 ft (March 16, 2007) · 22.2 ft (September 18, 2004) · 22.7 ft (January 20, 1996)
Up and down the river, and nearby
- UpstreamAllegheny River at Mosgrove Lock and Dam, PA
- DownstreamAllegheny River at Clinton Lock and Dam, PA
- Crooked Creek at Crooked Creek Dam Tailwater, PA
- Allegheny River at Rimer Lock and Dam, PA
- Buffalo Creek (PA) at Iron Bridge, PA
- Allegheny River at Freeport Lock and Dam, PA
- Red Bank Creek at St Charles, PA
- Mahoning Creek at Mahoning Dam Tailwater, PA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (KTTP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.