Old Roebling Bridge Photos 3 by Louise Smith Posted on September 19, 2014 Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, Lackawaxen, Pike County, PA. LOC: HAER PA,52-LACK,1–1. Delaware & Hudson Canal, Delaware Aqueduct, Spanning Delaware River, Lackawaxen, Pike County, PA. LOC: HAER PA,52-LACK,1–3. This entry was posted in Bridges, Then or now. Bookmark the permalink.