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Project Profiles

I-75 Roadway Expansion (iROX)
Location Collier and Lee Counties, Florida
Project Sponsor Florida Department of Transportation (FDOT)
Program Areas P3
Mode Highway
Description

The iROX project involved the expansion of I-75 through Collier and Lee counties in Florida. The project has several components:

  • Resurfacing and widening of 30 miles of I-75 from four lanes to six lanes from Golden Gate Parkway in Collier County to Colonial Blvd. in Lee County; addition of 12 ft. travel lane and 10 ft paved shoulders
  • Reconstructing the Immokalee Road interchange in Collier County
  • Coordination with adjacent projects in the corridor including the Regional Traffic Management Center/ITS project, Lee County Estero Parkway extension bridge, I-75/Bonita Beach Rd interchange and I-75 from Colonial Blvd to SR 82 widening

The six lanes were open one year ahead of schedule, and the I-75/Immokalee Road Interchange opened nine months ahead of schedule. 

Cost $458 million
Funding Sources

Federal funds: $340 million

State Growth Management Funds (GMR): $81.6 million

State Transportation Regional Incentive Program (TRIP) funds: $4.9 million

State funds (excluding GMR and TRIP): $26.3 million

Local funds: $4.9 million

Project Delivery / Contract Method DBF (design-build-finance)
Private Partner ACCI/API - Joint venture of Anderson Columbia Co. and Ajax Paving Industries
Project Advisors / Consultants

HDR - Design and construction services

Metric Engineering - Construction engineering and inspection

Lenders Not available
Duration / Status The project is completed. Notice to proceed issued in June 2007. Ground breaking occurred in October 2007. Six lanes opened ahead of schedule in December 2009. The I-75/Immokalee Road Interchange reached final acceptance in September 2010. 
Financial Status Closed. The joint venture began receiving payments from FDOT in October 2007, at first on a monthly basis and then on a quarterly basis after August 2008 when the initial funding ran out. Approximately $380 million was paid out during the project’s construction period and $78 million after completion. The last payment to the contractor occurred in October 2011. 
Innovations
  • Project would have been procured as nine separate design-bid-build projects when originally conceived, but when Florida’s P3 law was amended in 2004, relaxing legislative approvals, a DBF approach was considered
  • First DBF project in the state
Related Links / Articles

ENR Southeast Article – May 2008

ENR Southeast Article – May 2009

Contacts Crystal Gorman, P.E.
(239) 707-2682
crystal.gorman@dot.state.fl.us