This work on the dams was done in concert with the clearing of boulders, sand bars and snags along the Allegheny ... there still were large timber rafts traveling the Allegheny River.

Hydraulic fluid was released into the Allegheny River from Braeburn Alloy Steel in Lower Burrell on Monday afternoon, ...

Video from Drone 11 showed visible oil-stained ice along the bank of the Allegheny River from that spill. “My first reaction was, ‘not again,’” said Captain Evan Clark with Three Rivers ...