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Project Details
Work Type Interchange Improvements
Phase Construction
Project Start Fall 2023
City
County
Road
Construction Cost $223.5 million
Estimated Completion Early 2027
Contractor The Lane Construction Corporation
About

Click here to view the Construction Open House video!

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

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 (June 2025)

  • Installation of permanent drainage including a complete crossing of Nebraska Avenue
  • Removal of old storm drainage​
  • Utility coordination and relocation
  • Construction of subgrade and base for the new ramp (Ramp WE-B) from northbound I-275 to exit to Ybor City
  • Construction of MSE walls
  • Slip form barrier wall installation at Bridge #05 (over Nebraska Avenue)
  • Construction of slope pavement
  • Substructure work for new flyover bridge (Bridge #02) from southbound I-275 to eastbound I-4
  • Setting of beams for bridge #’s 2 (over Nebraska) and 7 (over Columbus)
  • Installation of light pole bases, power pole relocations and fiber optic cutover at 22nd Street.

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.

Need information on the ongoing closure of Floribraska Avenue under I-275? 
Please visit the following link or contact the City of Tampa directly at 813-635-3400. 

View Factsheet
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
  • 13th Avenue from 15th Street to 21st Street 
    Lane closures (eastbound): Sunday, July 20 through Thursday, July 24 nights from 8 p.m. to 5 a.m.

    14th Avenue from 14th Street to 15th Street  
    Lane closure : Sunday, July 20 through Thursday, July 24 nights from 8 p.m. to 5 a.m.

  • Columbus Drive between Nebraska Avenue and Florida Avenue Continues Closing Daily

    A temporary closure of Columbus Drive between Nebraska Avenue and Florida Avenue will occur Monday through Friday (July 7-11, 14–18) from 9 a.m. to 4 p.m., weather permitting.

    Westbound motorists will detour around the work zone by turning right onto Nebraska Avenue, then left onto Floribraska Avenue, and finally left onto Tampa Street, continuing south on Tampa Street toward Columbus Drive. 

    Eastbound motorists will detour around the work zone by turning left onto Florida Avenue, then right onto Floribraska Avenue, and finally right onto Nebraska Avenue, continuing south on Nebraska Avenue toward 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 daytime road closures are necessary for crews to perform overhead construction work for the Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements project. Construction activities are expected to finish in 2027.

    For more information on this project or to receive alerts, visit FDOTTampaBay.com.

Project Files
Project Videos
Project Images
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (May 2025)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (May 2025)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (May 2025)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (March 2025)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (December 2024)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (December 2024)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (August 2024)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (August 2024)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (August 2024)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (July 2024)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (June 2024)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (June 2024)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (June 2024)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (February 2024)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (December 2023)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (October 2023)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (October 2023)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (October 2023)
I-275 Capacity Improvements (October 2023)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (September 2023)
Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (September 2023)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (June 2023)
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Downtown Tampa Interchange (I-275/I-4) Safety and Operational Improvements (April 2023)