Annisquam Harbor Lighthouse is located on the Annisquam River, which connects Ipswich Bay to Gloucester Harbor. The original lighthouse was constructed in 1801 as a 32 foot wooden lighthouse with a fixed white light 40 feet above the water and a keeper’s house.
The Claiborne Pell Bridge was built using the suspension bridge design formula. The main road is suspended on high tension cables. The suspension cables are secured on either end of the bridge. Its main span of 1,600 feet makes it the largest suspension in New England, and the 64th largest in the world.