Twin bridges

Twin bridges are independent structures and each bridge has its own superstructure, substructure, and foundation.

[1] Bridges of this type are often created by building a new bridge parallel to an existing one in order to increase the traffic capacity of the crossing.

For a bridge owner, twin bridges can improve the maintenance and management of the structures.

For motorists, twin bridges can limit the risk that both directions of traffic will be disrupted by an accident.

This article about a specific type of bridge is a stub.