A historic suspension bridge over the Brazos River in Waco.
Suspension bridges can span longer distances than steel plate girder or truss bridges.
The Percy Pennybacker Bridge over Lake Austin on Loop 360 is a steel arch bridge . This bridge design is used when supports in the water might create a hazard for boat traffic on the lake or river. The most common type of bridge used on Texas highways is a precast concrete bridge . Steel plate girder bridges are used to span distances greater than 145 feet and can be used for bridges up to 400 feet long.