- What We Do
- Our Rivers
The main headstream by volume of both the Ohio and Mississippi Rivers.
The Allegheny River is 325 miles long.
The Allegheny River has 8 locks and dams.
The basin size of the Allegheny River is 11,580 square miles.
Navigable to milepost 89.5, the Allegheny River is used primarily for recreation but is still travelled by commercial traffic as well. In 1992, it was given the designation of Wild & Scenic River and was voted River of the Year in 2017.
Starting in the Allegheny highlands, the Allegheny River eventually joins the Monongahela to form the Ohio River in Downtown Pittsburgh. Along the way, it receives the waters of twenty-one major tributaries and dozens of smaller streams that collectively drain an area of close to 12,000 square miles.