Is there a term for bridges of different types built side-by-side? For example, a roadway bridge built right next a railroad bridge?
A new example of this is about to happen - a second I-71/75 bridge over the Ohio River. The new tied arch bridge will open by 2030 and abut a 1963 cantilever truss bridge.
Incredibly, this pair will neighbor another pair, a 1920/1974 railroad/road pair. The 1974 road bridge is built on the piers of an earlier 1880s railroad bridge.
President Biden is speaking here today:
