The Bromford Viaduct carries the M6 motorway between Castle Bromwich (junction 5) and Gravelly Hill (junction 6 - Gravelly Hill Interchange) along the River Tame valley in Birmingham, England. This elevated stretch of motorway above the Tame itself is 3+1⁄2 miles (5.5 kilometres) long, which makes it the longest viaduct in Great Britain,[1]
being 1⁄4 mile (400 metres) longer than the Second Severn Crossing. It was constructed during the period 1964–1972.[1]
Between 2012 and 2014, the motorway along the length of the viaduct was converted to a smart motorway system, with variable speed limits.[2]
