The Orwell bridge isn't technically in Ipswich, it is however one of the most impressive landmarks of the local area.
The Orwell Bridge was opened to road traffic in 1982 and carries the A14 over the River Orwell just south of Ipswich.
The main span is 190 metres which, at the time of its construction, was the longest pre-stressed concrete span in use. The total length is 1,287 metres from Wherstead to the site of the former Ipswich Airport. The width is 24 metres with an air draft of 43 metres. Pilings were sunk 40 metres into the river bottom.
The bridge is constructed of a pair of continuous concrete box girders with expansion joints that allow for expansion and contraction. The girders are hollow, allowing for easier inspection, as well as providing access for services, including telecom, power and a 711mm water main from the nearby Alton Water reservoir.
The bridge has become vital to Ipswich with over 60,000 vehicles using it per day, many of those being hauliers travelling to the Port of Felixstowe.