Bridge Week!: I-94 Bridge over Telegraph Road – Steel Arch

Photo Credit: Alex Mead

This is the I-94, Telegraph Road Bridge near Detroit, Michigan. This seemly out of place bridge is needed to span over Telegraph road to allow for unobstructed traffic flow beneath I-94. This bridge uses a combination of steel arches and tension cables to carry the load of the deck and passing traffic. The road deck takes load to the cables, which are hung from the steel arches. These steel arches then finish the load path by bringing the load to the ground. If you look on the right side of the picture, the top of the foundation of the bridge can be seen where the blue arch contacts the ground.