Design-Build Interstate 75 Express Lanes
Miramar and Miami, Fla.
Award of Merit
Owner: Florida Dept. of Transportation – District 4
Civil Engineer/Architect: WGI
This $233-million project created a 3.1-mile, four-lane tolled roadway within a 166-ft-wide median of Interstate 75. Crews also constructed four flyovers, five bridges and two bridge and ramp widenings at the intersection of I-75 and Florida’s Turnpike. Crews constructed two 1,200-ft-long and 1,000-ft-long curved steel super-elevated bridges side by side and only inches apart. To accommodate the construction of the bridge piers in live traffic areas, the team devised a maintenance-of-traffic plan that required only a handful of detours and traffic shifts. The steel structure was set without any closures to I-75. In addition to the express lanes, the team reconstructed the Miami Gardens Drive Interchange, replaced the Bass Creek Road bridge deck and built sound barrier walls along eight neighborhoods.
The design-build team also eliminated the need for a half-mile-long divided arterial roadway and eliminated more than 300,000 sq ft of bridge deck over I-75, reducing construction costs and long-term maintenance costs. The completed express lanes were opened ahead of schedule.
WGI provided services for the following segments of the I-75 Express Lanes project:
Read the full article from Engineering News-Record (ENR) here.
Meet our Awesome Associate Thomas (TJ) Tustin, an Engineer Intern in our West Palm Beach, Florida office. Thomas joined WGI six months ago and is part of our Structures Team.
Design-Build Team Owner: Florida Department of Transportation District 1 Design-Builder: The Ajax and WGI DB Team Engineer: Wantman Group, Inc. Specialty Contractor: Florida Safety Contractors,
WGI’s Traci Scheppske is part of Leadership Broward’s Class XXXVIII – Broward County’s premier leadership development training organization.
Meet our Awesome Associate Will Cheung, an Engineer Intern in our Orlando, Florida office. Will joined WGI a year ago and is part of our Roadway Team.
The project includes reduction in travel lane width, 5-foot-wide sidewalks, dedicated bicycle lanes and decorative crosswalks.
The WGI Team produced an innovative alternative technical concept (ATC) that converted the preliminary design concept from a partial cloverleaf to a diverging diamond-type interchange.
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