10th Street Bypass closed due to flooding concern

The 10th Street Bypass, which connects Fort Duquesne Boulevard with the Fort Duquesne Bridge along the Allegheny River in Downtown Pittsburgh, is closed due to anticipated flooding.

In addition, northbound and southbound ramps from the bridge to the bypass are closed indefinitely.

The detour involves using parallel ramps from Fort Duquesne Boulevard to the bridge.

Steve Cowan, a spokesman for the Pennsylvania Department of Transportation, said crews closed the bypass shortly before it reached the 22.5-foot flood stage so workers wouldn’t have to try to close it during rush hour.

The area saw nearly an inch of rain on Sunday, and more showers overnight prompted the National Weather Service to issue a hazardous weather outlook for Allegheny County and surrounding areas.

On Monday morning, the Ohio River at the Point elevated to 19 feet, the point at which water begins to flow onto the North Shore Riverwalk between the stadiums. The river was expected to crest closer to 20 feet on Monday.

Flooding prompted the closure of the Mon Wharf parking lot in Downtown Pittsburgh. The wharf floods when the river rises to 18 feet and is completely underwater at 19½ feet. The lot is closed “until further notice,” Pittsburgh’s Public Parking Authority said.

The good news is that plenty of sunshine is forecast for the rest of the week. Temperatures will remain in the upper 30s Tuesday before climbing to near 50-degree weather on Wednesday, according to the weather service.

Thursday through Saturday will feel a bit chillier, hovering in the 36-to-38-degree range.

Lows are expected in the 20s all week.

Alexandra Wimley/Post-Gazette A boat is partially submerged after tipping due to a rise in the Allegheny River’s water level on Monday on the North Shore. Water levels at the Point reached 19 feet Monday morning. The 10th Street bypass floods at 22.5 feet, and PennDOT closed that stretch of road before flood stage so a decision wouldn’t have to be made during rush hour.