Residential lots for sale in Ambridge, PA along the Ohio River Blvd overlooking the Ohio River! With new construction popping up in the valley, these lots come with a lot of potential. Whether its patio homes, duplexes, or tiny homes, the time is now to capitalize on all the exciting changes taking place in Ambridge! Situated right off Rt 65 behind the new splash pad, minutes to the main business district of Merchant St.