Client: US Army Corps of Engineers/FDOT – District 6
Location: Miami, Florida
Service: Major Bridge Structures
EAC Consulting, Inc. designed the Tamiami Trail/SR 90 Modifications project to restore water flow to Florida’s Everglades. The project is one of the first major restoration efforts for the Everglades ecosystem. EAC was the prime consultant for this major initiative which is essential in improving water deliveries under the Tamiami Trail into the Everglades National Park, restoring more natural hydrologic conditions thus aiding a wide range of vegetation types and wildlife species in the park. The project improvements cover approximately 11 miles of SR-90 beginning about one mile west of SR-997 (Krome Ave.) and ending at structure S-333 to the west. A new one-mile long bridge will allow additional hydraulic conveyance from the L-29 Borrow Canal, along the north side of the road, into the park. Located at the eastern end of the project, the two-lane, one-mile bridge consists of 66 equal spans of superstructure utilizing prestressed AASHTO Type IV beams. Pile bents with prestressed concrete piles will be used to support the superstructure. The proposed improvements also include the reconstruction of 9.7 miles of the existing roadway, raising the roadway to achieve base clearance to the design high water; milling and resurfacing in other areas in order to correct the substantially deteriorated existing pavement; and new construction of the roadways approaching the bridge.