SR 836 & NW 87th Ave Interchange

SR 836 & NW 87th Ave Interchange

Client: MDX

Location: Miami-Dade County, FL

Contract Delivery: CSI

Services Provided:

  • Bridge Design
  • Roadway Design
  • Value Engineering

BPA provided roadway, structural and construction support services under a subconsultant agreement to the SR 836 & NW 87th Ave Interchange redesign and reconstruction. This project will significantly improve congestion and traffic flow at the SR 836/Dolphin Expressway interchange with NW 87th Avenue by providing new direct expressway access. Our design scope included bridge, roadway approaches, retaining walls, lighting system, signalization and S&PM.

BPA’s Structures team redesigned the project’s Bridge 7 Construction Savings Initiative (CSI) Structural Steel Box Girder; a 271 ft. singlelane bridge and the longest curved simplespan 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. BPA 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.

BPA 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 Street to WB SR 836.