Tinsley Viaduct, Road bridge in Sheffield, England

Tinsley Viaduct is a two-level road bridge in Sheffield that extends roughly 1036 meters (3400 feet) across the Don Valley. The M1 motorway runs on the upper level while the four-lane A631 uses the lower deck.

Work on the viaduct started in 1965 under the direction of Freeman Fox & Partners. The lower level opened on March 25, 1968, and the upper level followed on October 19 that year.

The structure takes its name from the nearby Tinsley district and has become part of Sheffield's industrial landscape. Commuters and travelers cross the two-tier construction daily as it blends into the busy Don Valley scene.

Drivers crossing over or under the viaduct will notice the profile of the double roadway and steel supports. The lower level carries essential service lines for gas, electricity, and water alongside traffic.

The bridge rests on 17 pairs of box-shaped columns made from high tensile steel. These columns contain special jacking facilities that allow adjustments for temperature changes and ground subsidence.