The Greyhound Bridge forms part of the Lancaster One Way System that takes the A6 and A683 through the city centre. It is westbound only, having been converted from a railway bridge in 1972 to carry three lanes of traffic across the Lune. Eastbound traffic uses the older Skerton Bridge to the north.
The bridge opened with a 40mph speed limit that was reduced to 30mph in 2010.
Owing to the fact that all three lanes of the bridge merge into a single file at the western end, during most of the working day this is a notorious bottleneck and makes travel to both Morecambe and the Port of Heysham incredibly tedious. It is, however, hoped the eventual completion of the Heysham-M6 link road will put an end to the congestion that plagues Lancaster.