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I-4 Ultimate Project, US

The I-4 Ultimate Project is a public-private partnership (PPP) highway project – owned by the Florida Department of Transportation (FDOT) and led by the I-4 Mobility Partners (comprising John Laing and Skanska Infrastructure Development). The I-4 project plays a significant role in enhancing both safety and mobility for I-4 users, and reduces travel times in the heart of Florida.

Key facts

21 miles of highway

145+ bridges

40yr concession

50% John Laing ownership interest

Construction began in 2015 and completed in 2022.

John Laing has a 50 per cent shareholding in the project, making it joint equity investor and manager. The I-4 Ultimate Project reduces congestion and provides additional capacity along a busy 21-mile section of Interstate 4 that also serves as a major tourist route across central Florida. The project consists of the design, build, finance, maintenance and operation of the new section of Interstate 4 over a 40-year concession. Construction commenced in 2015 and reached completion in 2022.


The project included reconstructing 15 major interchanges, constructing more than 145 bridges, adding four variable priced toll Express Lanes, and completely rebuilding general use lanes.

The Florida Department of Transportation will administer all-electronic tolling for the managed routes.