What is the horizontal clearance of the First Avenue South Bridge?

The horizontal clearance of the First Avenue South Bridge is an important dimension for understanding the bridge's navigational capabilities. The correct answer indicates that the bridge has a horizontal clearance of 145 feet, allowing adequate space for marine traffic to pass beneath it safely. This measurement is crucial for vessels, as it determines the types of boats and ships that can navigate the waterways below without risk of collision with the bridge structure.

Such clearances are typically established during the design phase of bridge construction and are influenced by local regulations, navigational needs, and historical data on waterway traffic. In this instance, the 145-foot clearance ensures that the bridge accommodates standard shipping channels and highmast situations, which align with the operational requirements of the region’s maritime commerce.

Understanding this detail about the First Avenue South Bridge supports the broader knowledge of planning and construction standards in urban infrastructure. It emphasizes the need for balancing the demands of transportation—both land and water—and highlights the considerations involved in urban planning projects.