Bridge

Small Dean Viaduct

United Kingdom

About

Small Dean Viaduct is a viaduct currently under construction in Buckinghamshire which will carry the High Speed 2 railway line. Approval for the viaduct was granted by Buckinghamshire Council in April 2023. The viaduct is 345 metres (1,132 feet) long and will pass over the A413 road which will be realigned.

A shared-use path will also be provided. The viaduct will have a low profile with the underside of the viaduct 6 metres (20 feet) above the road surface below. It will be supported by five Y-shaped piers and girders made from weathering steel.