The I-4 Ultimate Makeover started earlier last year and it spans more than 21 miles from west of Kirkman Road in Orange County to the east of State Road 434 in Seminole County.

Of the bridges along the corridor, there will be 13 widened, 74 replaced and 53 added, totaling 140 permanent bridges.

There will also be two temporary bridges to maintain traffic during construction phasing. In addition, 15 major interchanges will undergo complete reconstruction.

Express Lanes are an innovative solution to manage traffic congestion and provide choices for travelers. This project provides additional lanes with restricted access points, and dynamic toll pricing based on the level of congestion in the adjacent non-tolled general purpose lanes, to provide more reliable travel options for motorists.

New Express Lanes with dynamic toll pricing will be added to the center of I-4, two in each direction, and the general use lanes and auxiliary lanes will be rebuilt.

The cost for the massive design-and-construction project is $2.3 billion in year-of-expenditure dollars and the project is expected to end in five and half years.
 

This is what is currently happening with the project.

Map courtesy of I4Ultimate.com and FDOT. Click to enlarge.