25.785643, -80.175907

PortMiami Tunnel

Miami, Florida

Project Information

The design of Entrance and Exit Portals to twin tube tunnels, each 3,900 feet long and 41 feet in diameter reaching a depth of 120 feet below the water. The tunnels connect PortMiami (located on an island in Biscayne Bay) with Watson Island where traffic flows to the MacArthur Causeway (State Road A1A/1-395), connecting Miami Beach to Miami and the mainland The overall project includes a tunnel under Government Cut, roadway work on Dodge and Watson Islands and MacArthur Causeway Bridge widening.