The Mount Hope Bridge is a two-lane suspension bridge spanning the Mount Hope Bay in eastern Rhode Island at one of the narrowest gaps in Narragansett Bay. The bridge connects the Rhode Island towns of Portsmouth and Bristol and is part of Route 114. Its towers are 285 feet (87 m) tall, the length of the main span is 1,200 feet (370 m), and it offers 135 feet (41 m) of clearance over high water. The total length of the bridge is 6,130 feet (1,870 m).

Mount Hope Bay is a tidal estuary located at the mouth of the Taunton River on the Massachusetts and Rhode Island border. It is an arm of Narragansett Bay. The bay is named after Mount Hope, a small hill located on its western shore in what is now Bristol, Rhode Island. It flows into the East Passage of Narragansett Bay and also the Sakonnet River. Mount Hope Bay has played an important role to the history of the area, from pre-colonial times to the present. While many years of sewage and industrial pollution have severely degraded the quality of the shallow waters of the bay, there are currently major efforts underway to clean up and restore it.