Definition
The Bromford Viaduct is a elevated section of the M6 motorway located in the eastern part of Birmingham, England. It carries six lanes of traffic above ground level for a length of approximately 5.6 kilometres (3.5 miles), making it one of the longest motorway viaducts in the United Kingdom.
Overview
Constructed as part of the Birmingham bypass and opened to traffic in 1972, the Bromford Viaduct connects junction 5 (Bordesley) with junction 6 (Bromford), allowing the M6 to cross a densely built‑up area without interfering with existing road, rail, and waterway infrastructure. The viaduct traverses the River Tame, the Birmingham–Wolverhampton railway line, the River Cole, and a number of local roads and industrial sites. Its construction facilitated a significant reduction in travel time for north‑south traffic and contributed to the development of the surrounding industrial estate.
Etymology/Origin
The name “Bromford” derives from the nearby Bromford district of Birmingham. The term is historically linked to the old Bromford Bridge, a crossing of the River Tame that existed before the viaduct’s construction. The word “viaduct” originates from the Latin via (road) and ductus (to lead), used to describe a bridge-like structure that carries a road or railway over obstacles.
Characteristics
- Length: Approximately 5.6 km (3.5 mi).
- Width: Carries three lanes in each direction, with a total deck width of about 27 m (88 ft).
- Structure: Consists of a series of reinforced concrete piers supporting a continuous concrete deck. The design incorporates expansion joints to accommodate thermal movement.
- Elevation: Varies between 4 m and 12 m above ground level, depending on the terrain and underlying obstacles.
- Construction Period: Began in 1969 and was completed in 1972. The project was undertaken by the British Government’s Ministry of Transport in conjunction with the construction firm Costain.
- Traffic Volume: Serves as a major arterial route for both commercial and commuter traffic on the M6, with average daily vehicle counts exceeding 120,000.
- Maintenance: Managed by National Highways (formerly Highways England). Periodic resurfacing and structural inspections are conducted to ensure safety and durability.
Related Topics
- M6 Motorway: The major north‑south motorway on which the viaduct is situated.
- Birmingham Motorway Network: Includes the nearby Birmingham Inner Ring Road and the Birmingham–Worcester Canal crossing.
- Viaduct Construction Techniques: Reinforced concrete deck, pre‑stressed girders, and modular pier design.
- Transport Infrastructure in the West Midlands: Contextualizes the viaduct within regional planning and economic development.
- National Highways: The agency responsible for the operation and maintenance of England’s strategic road network.