three-way bridge

A three-way bridge (or tri-bridge) is a bridge with three distinct and separate spans, where one end of each span meets at a common point near the centre of the bridge. Unlike other bridges which have two entry-exit points, three-way bridges have three entry-exit points. For this reason, three-way bridges are not to be confused with commonly-found road bridges which carry vehicles in one direction from one entry point, and then bifurcate into two other one-way bridges.