The bridge has two high silver towers. These are on either side of the roadway at the middle of the bridge's span. These two towers are only for show, and are not joined to the main body of the bridge. The towers are hollow, and have ladders leading to a small roof top hatch. The Bolte Bridge has four spans with two main spans of and side spans of . The total length of the bridge is . The twin bridge has two wide decks, each with three lanes of vehicles. There is no access for cyclists or pedestrians.