Dolphins protect the Bob Graham Sunshine Skyway Bridge over Tampa Bay

Dolphins are large concrete structures placed around the piers that support a bridge. They help protect bridges by deflecting vessels that come too close to the pier.

Dolphins are large concrete structures placed around the piers that support a bridge. They help protect bridges by deflecting vessels that come too close to the pier.

Dolphins are large concrete structures placed around the piers that support a bridge. They help protect bridges by deflecting vessels that come too close to the pier.

Dolphins are large concrete structures placed around the piers that support a bridge. They help protect bridges by deflecting vessels that come too close to the pier.