It has been our experience that breaking ice creates more ice.
Additional ice is created on the freshly exposed water surfaces.
Historically, almost the entire Allegheny River freezes almost every year from the mouth of the Kiskiminetas River to the Kinzua Dam, a distance of about 170 miles. In addition, almost all of the tributaries to the Allegheny River freeze. The Allegheny River below the Kiskiminetas River generally has a small navigation lane, which is created by the local commercial traffic. The river traffic in the subject pools is almost non-existent during the winter. Most ice jams along the Allegheny River are caused by the ice that has traveled down from upstream during a thaw.