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Market: Bridges County Government Highways & Roads Region: Florida

SR 836 & NW 87th Ave Interchange Westbound Flyover

Miami-Dade County, FL

2021 ASCE Miami-Dade Project of the Year – Category I Award Winner
2021 CAACE Project of the Year – Category I Award Winner

Colliers Engineering & Design (CED) provided roadway, structural and construction support services under a Construction Savings Initiative (CSI) contract for the SR 836 & NW 87th Ave. Interchange Westbound Flyover redesign and reconstruction. This project significantly improves congestion and traffic flow at the SR 836/Dolphin Expressway interchange with NW 87th Ave. by providing new direct expressway access. Our design scope included bridge, roadway approaches, retaining walls, lighting system, signalization and S&PM.

CED redesigned the project’s Bridge 7 Structural Steel Box Girder; a 271 ft. single-lane bridge and the longest curved simple-span dual steel box girder structure in the State of Florida. The original design comprised a 483 ft. long two-span curved continuous plate girder bridge structure. CED also performed a slight realignment of the bridge and modified the structural system using steel box girders saving the project approximately 42%, or 539,000 pounds, of steel.

CED was also the Roadway Engineer of Record for a CSI for the re-design of Ramp D3 (Bridge No. 7), which provides access from NW 12th St. to westbound SR 836.

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  • Bridge Engineering
  • Highway Design