Which did construction start on first, the Delaware and Raritan Canal or the Pennsylvania Canal?
Delaware and Raritan Canal The Delaware and Raritan Canal (D&R Canal) is a canal in central New Jersey, United States, built in the 1830s, that served to connect the Delaware River to the Raritan River. It was intended as an efficient and reliable means of transportation of freight between Philadelphia and New York City, especially coal from the anthracite fields in eastern Pennsylvania. Before the advent of the railroads, the canal allowed shippers to cut many miles off the route from the Pennsylvania coal fields, down the Delaware, around Cape May, and up along the (occasionally treacherous) Atlantic Ocean coast to New York City.
St. Georges Bridge (Delaware) The St. Georges Bridge is a steel truss bridge with a tied arch span that carries U.S. Route 13 (US 13) across the Chesapeake & Delaware Canal in St. Georges, Delaware. Built by the U.S. Army Corps of Engineers and opened in 1942 as a high-level crossing, the bridge was the first four-lane, high-level crossing to span the canal. It replaced a previous vertical lift bridge which was damaged when a German merchant ship collided with it.