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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements 445057-1-52-01
Project Details
| Work Type | Interchange Improvements |
|---|---|
| Phase | Construction |
| Project Start | Fall 2023 |
| City | |
| County | |
| Road | |
| Construction Cost | $227.5 million |
| Estimated Completion | Early 2027 |
| Contractor | The Lane Construction Corporation |
About
The Downtown Tampa Interchange project will improve the safety and operations of the I-275/I-4 interchange in Tampa. Improvements include:
Southbound I-275 to Eastbound I-4
- Providing a two-lane exit and constructing a new exit ramp bridge (to the inside of the interchange) from SB I-275 to EB I-4
- Changing the EB exit ramp from I-4 to Ybor City by relocating access to14th/15th Streets instead of 21st/ 22nd Streets
- Widening the existing EB I-4 frontage road (13th Avenue) to two lanes
Westbound I-4 to Northbound I-275
- Widening the existing single lane ramp from WB I-4 to NB I-275 to two lanes
- Adding an additional merge lane on NB I-275 between I-4 and the Dr. Martin Luther King Jr. exit to the west of the current alignment
Westbound I-4 to Southbound I-275
- Widening the existing two-lane ramp from WB I-4 to SB I-275 to three lanes
- Widening the shoulders on SB I-275 between Palm Avenue and Jefferson Street
- Shifting the exit ramp from SB I-275 into downtown Tampa to the west of the current alignment
To construct the project, heavy machinery will be used during daytime and nighttime hours and at times, may produce noise, vibration, and require the use of bright lights during nighttime work.
Work requiring lane closures will occur at night between 9 p.m. and 6:30 a.m. Occasionally, interstate ramps may close at night between 11 p.m. and 5 a.m.
Current Work Activities (March 2026)
- 98% of the steel girders are installed over Nebraska for the new SB I-275 to EB I-4 Ramp
- 65% of major drainage installation is complete
- 80% of the old storm drainage removed
- 90% of utilities have been relocated
- 75% of concrete pavement for new NB I-275 exit ramp to Ybor City/East Tampa is complete
- 75% of MSE walls are installed
- 90% of the bridge decks for the new ramp over Palm Avenue are complete
- 55% Installation of new ITS fiber, lighting and signalization at 14th/15th Streets are ongoing
This project is expected to finish during early 2027.
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FDOT project numbers 445057-1, 445056-1 and 445056-2 have been combined into a single construction contract. All updates and alerts will be posted on this page.
*Construction cost includes original construction contract amount plus approved contract changes. It does not include inspection oversite.
Contact Information
Closures
-
Yesterday, the City of Tampa set up a continuous road closure of Nebraska Avenue under I-4 to perform emergency repairs to a damaged utility line. Nebraska Avenue is expected to reopen before Wednesday, March 11, 2026.
During this temporary road closure:
- Northbound motorists should use Palm Avenue, 15th Street to 21st Avenue
- Southbound motorists should use Columbus Drive, 14th Street, 12th Avenue to Palm Avenue
We appreciate your patience and understanding.
-
15th Street between Palm Avenue and 12th Avenue
Continuous lane closures (northbound): 24 hours per day through approximately through May 2026
