A505 Baldock Bypass

The A505 Baldock Bypass included 6.5km of dual carriageway and 8 major structures, which runs from the A6141 through a 240m long, cut and cover, dual arch tunnel under Weston Hills, the highest point in Hertfordshire.  A family of 5 bridges, 1 landmark footbridge, and an underpass were also provided.

The project was opened eight months early.