Downtown Interchange

Tampa is experiencing rapid growth, and the downtown interchange is a known chokepoint.

Tampa’s downtown and surrounding urban core  is rich with cultural and historical resources. The downtown interchange and corridors of I-275, I-4 and the Selmon Expressway are key links in Florida’s interstate freeway system providing freight and passenger mobility. They serve as important commuter routes to suburban and urban communities in the Tampa Bay metropolitan area providing access to jobs, medical facilities, universities and cultural resources.

Wait, didn’t you fix that already?

FDOT completed operational improvements to the Downtown interchange in 2006, but FDOT has had a long-standing plan to redesign and reconstruct the Downtown interchange. The 2006 improvements can be compared to interim improvements in a home renovation. Homeowners may only have funding to replace their floors and windows, but they know that eventually they should replace the HVAC, plumbing, electrical, etc. as funding becomes available. FDOT has planned on redesigning and rebuilding the Downtown interchange since the late 1980s. The current interchange configurations are being designed to the latest standards, using the most recent traffic data and demographic projections. The design concepts will be evaluated under current environmental assessment policies and procedures.

Click graph to enlarge

Project Status


Early 2020


Evaluating Express Lanes and
other concepts

The Westshore Area Interchange, the Westshore to Downtown Corridor, and the Downtown Interchange projects are all part of a long-standing plan to improve and modernize Tampa’s interstate system, originally called the Tampa Interstate Study (TIS). The TIS required the most rigorous evaluation process in transportation planning – an Environmental Impact Statement (EIS).

In response to community feedback, FDOT is working with the Federal Highway Administration to prepare a Supplemental Environmental Impact Statement (SEIS) to determine the preferred alternative for improving Tampa’s interstates and evaluating potential impacts. Express lanes are one of the concepts being evaluated in the SEIS. FDOT is evaluating alternatives and inviting the community to share additional concept ideas.

During October 2017, FDOT held a public workshop to review the concepts and get community input on which concepts will be carried forward for detailed study. A second public workshop was held in May 2019 to review proposed alternative options.

Click here to view the latest Downtown Tampa Interchange fact sheet.

To view concept plan for the Downtown Tampa Interchange
Option A, please click here.

To view concept plan for the Downtown Tampa Interchange
Option B, please click here.

To view concept plan for the Downtown Tampa Interchange
Option C, please click here.

To view concept plan for the Downtown Tampa Interchange
Option D, please click here.

To view concept plans for the Downtown Tampa Interchange operational improvements, please click here.

For more information on the SEIS, click here.

Find additional event information on the Outreach Calendar.

Downtown Quick Facts

66,580 Employees

44,400 Living within 3 miles of downtown

8,152 Living in Downtown core

6,600+ Total Opened Residential Units

4,000+ Planned/Under Construction Residential Units

180 Restaurants

16 Hotels

The Downtown Interchange project will update the system to modern standards and align with the City of Tampa’s vision for the future of downtown.

Tampa Bay Next will provide multimodal transportation choices to:

  • Distribute traffic more evenly for a growing and changing downtown and urban core
  • Efficiently move people and goods with connectivity throughout the region
  • Enhance travel speeds to key destinations and reduce backups
  • Integrate transit choices for commuters, visitors and residents
  • Connect neighborhoods with public spaces such as parks, greenway and a trail
The Florida Department of Transportation is required to comply with various non-discrimination laws and regulations, including Title VI of the Civil Rights Act of 1964. Public participation is solicited without regard to race, color, national origin, age, sex, religion, disability, or family status. Comuníquese con nosotros: Nos importa mucho la opinión del público sobre el proyecto. Si tiene preguntas o comentarios, o simplemente desea más información, por favor comuníquese con nosotros. Nuestra representante en español es: Lilliam Escalera, (813) 975-6445,