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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 southbound I-275 to eastbound I-4
- Changing the eastbound exit ramp from I-4 into Ybor City/East Tampa by relocating access at 14th/15th Streets instead of 21st/ 22nd Streets
- Widening the existing eastbound I-4 frontage road (13th Avenue) to two lanes
Westbound I-4 to Northbound I-275
- Widening the existing single lane ramp from westbound I-4 to northbound I-275 to two lanes
- Adding an additional merge lane on northbound I-275 between I-4 and the 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 westbound I-4 to southbound I-275 to three lanes
- Widening the shoulders on southbound I-275 between Palm Avenue and Jefferson Street
- Shifting the exit ramp from southbound 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 (December 2025)
- 98% of the steel girders are installed over Nebraska for the new SB I-275 to EB I-4 Ramp
- 50% of major drainage installation is complete
- 75% of the old storm drainage removed
- 85% 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
- 50% Installation of new ITS fiber, lighting and signalization at 14th/15th Streets are ongoing
This project is expected to finish during early 2027.
To receive construction updates and traffic alerts via email, be sure to subscribe above.
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
| Project Information |
|---|
|
Maricelle Venegas
813-975-6204
Maricelle.Venegas@dot.state.fl.us
|
| Media Contact |
|
Kris Carson
813-975-6060
Kristen.Carson@dot.state.fl.us
|
Closures
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SB I-275 Lanes through Downtown Tampa Interchange Closing Thursday Night
Tampa, FL – A temporary closure of the southbound I-275 travel lanes under I-4 will occur from 10 p.m., Thursday, December 18 through 5 a.m., Friday, December 19, weather permitting.
Motorists traveling south on I-275 will have to exit the interstate using Exit 46A, turn right onto Floribraska Avenue, turn left onto Tampa Street, and re-enter the interstate using the southbound I-275 entrance ramp.
Advanced warning signs and message boards will assist motorists traveling through the detour. Drivers should remain alert for construction workers and pedestrians in the area.
These temporary interstate lane closures are necessary for crews to perform overhead bridge work as part of the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project.
For more information on this project or to receive traffic alerts, please visit FDOTTampaBay.com.
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Southbound I-275 Ramp (Exit 45B) to Eastbound I-4 Continues Closing Nightly
Tampa, FL - A temporary closure of the southbound I-275 ramp (Exit 45B) to eastbound I-4 will occur from 10 p.m. to 5 a.m., Sunday, December 21 and Monday, December 22, weather permitting.
Motorists will have to detour around the work zone by continuing south on I-275, exiting the interstate using Exit 45A (Jefferson Street), keeping right at the fork toward Downtown East, turning left onto Scott Street, and re-entering the interstate using the eastbound I-4 entrance ramp.
Advanced warning signs and message boards will assist motorists traveling through the detour. Drivers should remain alert for construction workers and pedestrians in the area.
This ramp closure is necessary for crews to perform sound wall work for the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project.
For more information on this project, please visit FDOTTampaBay.com.
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7th Ave between Central Ave and Nebraska Ave Closing through December
Tampa, FL – Continuing Friday, November 14, 2025, the Florida Department of Transportation has closed 7th Avenue between Nebraska Avenue and Central Avenue through January 2026.
Motorists traveling westbound on 7th Avenue will need to detour around the work zone by turning right onto Nebraska Avenue, left onto Palm Avenue, left onto Central Avenue, and continuing south toward 7th Avenue.
Eastbound 7th Avenue motorists will need to detour around the work zone by turning left onto Central Avenue, right onto Palm Avenue, right onto Nebraska Avenue, and continuing south toward 7th Avenue.
Drivers should use caution while traveling through the work zone and remain alert for pedestrians and construction workers.
This road closure is necessary for crews to perform drainage installation work as part of the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project. Construction activities are scheduled to finish early 2027.
For more information on this project or to sign up for alerts, please visit FDOTTampaBay.com.
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15th Street between Palm Avenue and 12th Avenue
Continuous lane closures (northbound): 24 hours per day through approximately through May 2026
