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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 (as of March 2025)

• Construction of micro-tunnel manhole risers
• Installation of temporary and permanent drainage​
• Removal of old storm drainage​
• Construction of footings and columns for bridge widenings, gravity walls and bridge deck widenings at 14th and 15th Streets
• Utility relocations
• Construction of embankment for the new ramp from northbound I-275 to exit to Ybor City
• Construction of MSE walls
• Construction of slope pavement
• Demolition of barrier wall in preparation of drilled shafts for overhead signs
• Substructure work for new flyover bridge from southbound I-275 to eastbound I-4

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.

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.