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]