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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
>>>Click here to view the traffic advisory for the Downtown Tampa Interchange Closing This Weekend and image of map.
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.
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 (September 2025)
- 40% of the steel girders are installed over Nebraska for the new SB I-275 to EB I-4 Ramp
- 35% of major drainage installation is complete
- 65% of the old storm drainage removed
- 85% of utilities have been relocated
- 65% of concrete pavement for new NB I-275 exit ramp to Ybor City/East Tampa is complete
- 60% of MSE walls are installed
- 50% of the bridge decks for the new ramp over Palm Ave. are complete
- 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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Downtown Tampa Interchange Closing This Weekend
A temporary closure of the Downtown Tampa Interchange will occur from 12:01 a.m. on Saturday, October 4, through 5 a.m. on Monday, October 6, 2025.
On Saturday, October 4, from 5 a.m. to 10 p.m., northbound I-275 motorists should follow I-4 (Exit 45B), exit at Exit 3, turn right on Columbus Drive, left on US 41, left on Hillsborough Avenue, then continue west to re-enter northbound I-275.
From 12:01 a.m. Saturday, October 4, to 5 a.m. Monday, October 6, only one southbound lane on I-275 from Dr. Martin Luther King Jr. Boulevard through the interchange will be open to traffic. Motorists should continue south to Exit 45A and use the temporary ramp to re-enter southbound I-275.
Southbound I-275 motorists needing access Downtown East-West (Exit 45A) during the closure should exit at 46A, turn right on Floribraska Avenue, left on Tampa Street, and continue south to reach downtown streets.
The southbound I-275 ramp to eastbound I-4 will remain open to motorists all weekend.
Motorists traveling on westbound I-4 needing to access southbound I-275 or Downtown Tampa, Saturday, October 4, from 5 a.m. to 10 p.m., will proceed onto the northbound I-275 entrance ramp, exit the interstate at Exit 46B, turn left onto SR 574 (Dr. Martin Luther King Jr. Boulevard), left onto Tampa Street, and continue south on Tampa Street to access the southbound I-275 entrance ramp or other Downtown Tampa streets.
Electronic message boards and temporary signage will assist motorists traveling around the interchange via the posted detour routes. Motorists should expect delays and congestion during this closure.
This interchange closure is necessary for crews to erect steel girders for the new exit ramp (two-lane bridge) from southbound I-275 to eastbound I-4 as part of the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project.
For more information on this project or to sign up for traffic alerts, please visit FDOTTampaBay.com.
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Palm Avenue between Central Avenue and Nebraska Avenue Nightly Closures Continue
Tampa, FL – Temporary road closures of Palm Avenue between Central Avenue and Nebraska Avenue will continue nightly from 10 p.m. to 5 a.m., Sunday through Thursday (September 28 - October 2, October 5 - October 9, and October 12 - October 16), weather permitting.
Motorists will have to detour around the work zone using Nebraska Avenue, Columbus Drive, and Central Avenue.
Electronic message boards and signage will assist drivers traveling through the area. Motorists should use caution while driving through the work zone and remain alert for pedestrians and construction workers.
These closures are necessary for crews to perform overhead bridge deck placement for the safety and operational improvements project of the Downtown Tampa Interchange (I-275/I-4). Construction activities are expected to be completed by 2027.
For more information on this project or to receive traffic alerts, please visit FDOTTampaBay.com.
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13th Avenue (Ybor Frontage Road South) between 15th Street and 21st Street Closing Nightly
Tampa, FL – 13th Avenue (Ybor Frontage Road South) will be closed between 15th and 21st Streets from 10 p.m. to 5 a.m., Sunday through Thursday (September 21-25 and September 28-October 2), weather permitting.
Detour: Motorists should use 12th Avenue.
Electronic message boards and signage will assist drivers traveling through the area. Motorists should use caution while driving through the work zone and remain alert for construction workers and pedestrians.
These nighttime closures are necessary for crews to perform construction activities along the south side of I-4 as part of the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project, expected to be completed in 2027.
For more information on this project or to receive alerts, visit FDOTTampaBay.com.
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Columbus Drive between Nebraska Avenue and Florida Avenue Closing Nightly
Tampa, FL – Columbus Drive will close nightly between Nebraska Avenue and Florida Avenue, Sunday through Thursday (9/21-9/25 and 9/28-10/2), from 10 p.m. to 5 a.m., depending on weather.
Westbound drivers should detour right onto Nebraska Avenue, then left onto Floribraska Avenue, and left onto Tampa Street to reach Columbus Drive.
Eastbound drivers should detour left onto Florida Avenue, then right onto Floribraska Avenue, and right onto Nebraska Avenue to reach Columbus Drive.
Electronic message boards and signage will assist drivers traveling through the area. Motorists should use caution while driving through the work zone and remain alert for construction workers and pedestrians.
These nighttime closures are necessary for crews to perform overhead bridge work for the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project. Construction activities are expected to be completed in 2027.
For more information on this project or to receive alerts, visit FDOTTampaBay.com.
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Southbound I-275 Ramp (Exit 45A) to Downtown East-West Continues Closing Nightly
Tampa, FL – The southbound I-275 ramp (Exit 45A) to Downtown East-West (Jefferson Street and Ashley Drive) will close nightly from Sunday, September 21, to Thursday, September 25, and again from Sunday, September 28, to Thursday, October 2, from 10 p.m. to 5 a.m., weather permitting.
Drivers should detour at Exit 46A, turn right on Floribraska Avenue, then left on Tampa Street, and continue south to access Scott Street, Laurel Street, and Cass Street.
Advanced warning signs and electronic message boards will be used to assist motorists during these closures. Drivers should use caution while traveling through the work zone and remain alert for pedestrians and construction workers.
These temporary nighttime ramp closures are necessary for crews to perform construction activities along interstate ramps for the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project.
For more information on this project or to sign up for traffic alerts, please visit FDOTTampaBay.com.
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7th Ave between Central Ave and Nebraska Ave Temporarily Closed
Tampa, FL – 7th Avenue between Nebraska Avenue and Central Avenue remains closed through end of September 2025, weather permitting.
Motorists traveling westbound on 7th Avenue are being detoured around the work zone by turning right onto Nebraska Avenue, then left onto Palm Avenue, and finally left onto Central Avenue, continuing south toward 7th Avenue.
Eastbound 7th Avenue motorists are detouring around the work zone by turning left onto Central Avenue, then right onto Palm Avenue, and finally right onto Nebraska Avenue, continuing south toward 7th Avenue.
Electronic message boards and signage are in place to assist motorists traveling through the area. 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 overhead bridge work as part of the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project. Construction activities are scheduled to finish in 2027.
For more information on this project or to sign up for alerts, please visit FDOTTampaBay.com.
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Temporary Closure: Elmore Ave from Floribraska Avenue to Columbus Dr
Tampa, FL – Beginning Monday, August 11, the Florida Department of Transportation will close Elmore Avenue from Floribraska Avenue to Columbus Drive for several months.
Other roadways (Central Avenue and Robles Street) will remain open to provide an alternate route to access Elmore Avenue.
This road closure is necessary for crews to perform construction activities along the west side of I-275 for the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project.
For more information or to sign up to receive alerts, please visit FDOTTampaBay.com.
