Pennsylvania State Route 791 is a north-south highway in Eastern Allegheny County. It runs from BUSN U.S. Rt. 22 at Churchill to Pennsylvania State Route 380, at Penn Hills. PA St Rt 791 passes through the following towns in Allegheny County. Churchill Penn Hills PA St Rt 791 is not multi-plexed in Allegheny County. PA St Rt 791 intersects the following highways in Allegheny County. BUSN U.S. Rt. 22, at Chuchill. Interstate 376, near Churchill. U.S. Rt. 22, near Churchill. Pennsylvania State Route 380, at Penn Hills.
