The Gull Wing Bridge is a rolling bascule bridge that spans Lake Lothing in the town of Lowestoft, Suffolk, England, and is the largest bridge of its kind in the world to date. Designed to be lifted using hydraulic cylinders and to be higher than the existing bascule bridge at the harbour mouth, it serves both as a new link for the arterial roads in the area, such as the A12, and as a means to try to reduce traffic congestion that frequently occurs in Lowestoft.