Monongahela River at Maxwell Lock and Dam (lower pool)

1. 40.50 ftFlooding begins on the lower side of Main Street in Brownsville
2. 35.00 ftHomes flood on Middle Street, Liberty Street, Water Street, Broadway Street, River Street, and Axton Street in West Brownsville.
3. 33.50 ftLock walls overtopped.
4. 33.32 ftWater levels reach the flood levels of the flood of July 30, 2017.
5. 32.00 ftLow lying areas of West Brownsville begin to flood.
6. 31.00 ftNavigation suspended, lock out of service.
7. 28.00 ftMiddle Street and Liberty Street in West Brownsville are closed due to storm drain system backups, and several homes have basement flooding.
8. 27.00 ftBrownsville Road at Albany Tunnel (near Assad Iron and Metal) in Fayette County is closed due to high water.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 15, 2026.

Most recent crests

• February 8, 2019: 20.68 ft
• February 17, 2018: 30.81 ft
• July 30, 2017: 33.32 ft
• March 15, 2015: 21.50 ft
• March 5, 2015: 30.89 ft
• May 5, 2009: 27.30 ft
• June 5, 2008: 23.90 ft
• December 14, 2007: 29.40 ft
• November 20, 2003: 31.40 ft
• February 24, 2003: 26.80 ft

• UpstreamMonongahela River at Grays Landing Lock and Dam
• DownstreamMonongahela River at Charleroi Lock and Dam
• Tenmile Creek at Mariana
• Tenmile Creek at Jefferson
• Pigeon Creek at Pigeon Creek
• Redstone Creek at Waltersburg
• Dunkard Creek at Shannopin
• Peter's Creek at Venetia

Forecasts by the Ohio River Forecast Center. Forecasts are issued routinely year-round. The above river forecast includes future rainfall/snowmelt. Forecast stages may be different if the actual rainfall/snowmelt is different than the forecast rainfall/snowmelt. Stage may be affected by ice.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.