This project consits of widening mainline HEFT between SW 72nd Street & SW 40th Street to two express lanes and three general purpose lanes in each direction in addition to auxilary lanes as required, and improve the mainline alignment between SW 56th street & Bird Road to increase the design speed. The widening of mainline HEFT will involve the widening of four pairs of bridges. In addition, a replacement northbound exit ramp to SW 117th Avenue will be constructed.  Furthermore, the existing toll facilities will be replaced with a new All Electronic Toll Gantry Structure. Bird Road will be widened by the addition of one lane and SW 117th Avenue will be reconfigured to make Frontage Road to a one way street with limited access.