Segment AB is the largest and most complex segment of the I-75 Express Lanes project, and extends 3.1 miles from NW 170th Street to south of Miramar Parkway. WGI was engineer of record on this project, and designed: new express lanes in the existing I-75 median; 2.6 miles of reconstruction of the Homestead Extension of Florida’s Turnpike (HEFT) to accommodate a third-level direct median-to-median flyover express lane connection; new systems interchange movements; and new CD roads and ramps at the Miami Gardens interchange. The project includes ten new bridges, four bridge widenings, and one bridge deck replacement. This project provided major improvements to the safety, mobility and operations of the corridor in Miami-Dade and Broward counties. WGI provided all roadway and structures design; geospatial services; environmental assessments and permitting; drainage design; signing and pavement marking; utility coordination; and traffic control plans. This project received ACEC Florida’s Outstanding Project Award.