What is the horizontal clearance of the Spokane Street swing bridge?

The horizontal clearance of the Spokane Street swing bridge is 250 feet. This measurement is critical for navigational safety, as it ensures that vessels can pass through without any risk of collision with the bridge structure. This clearance has been specifically designed to accommodate various marine traffic types, including commercial and recreational vessels.

Understanding the specific dimensions of such clearance is vital for planners and engineers, as it directly affects the logistics of waterway navigation and associated infrastructure development. This information is also relevant for those involved in future planning initiatives, ensuring that the bridge meets regulatory standards and navigational requirements.

In contrast, the other options reflect measurements that fall short of meeting the necessary navigational requirements for the types of traffic expected under the bridge. The accuracy of infrastructure specifications like these ensures safety and efficiency in both marine and roadway transportation networks.