Not to be confused with the unincorporated community of Quaker Bridge, Mercer County, New Jersey, or with the Quaker Bridge Mall, a shopping mall near the aforementioned community.Quaker Bridge is a historic steel Pratt truss bridge located in Hempfield Township, Mercer County, Pennsylvania. It was built in 1898 by the Cleveland Bridge Company, and is a 124-foot-long (38 m) bridge with a single span.