The Florida Department of Transportation (FDOT) is undertaking three significant interchange improvement projects along I-4 in Hillsborough County. These projects aim to enhance traffic flow, improve safety, and accommodate future growth in the area. Here’s a detailed look at each project:


I-4 Interchange Improvement Thonotosassa Road – Exit 19

Visit the project webpage here

  • Scope of Work:
    The SR 566 (Thonotosassa Road) interchange will be widened from two to four lanes between the ramps. The project includes adding a new northbound-to-eastbound right-turn lane onto I-4 and installing a traffic signal at the base of the westbound off-ramp where there is not one already.
  • Project Details:
    • Length: 0.596 miles
    • Start Date: September 11, 2024
    • Estimated Completion: Early 2026
    • Contractor: Watson Civil Construction, Inc.
  • Benefits:
    These improvements are expected to reduce congestion and provide safer and more efficient traffic operations at this busy interchange.
  • Contact Information:

I-4 Interchange Improvement at Branch Forbes Road (Exit 17)

Visit the project webpage here

  • Scope of Work:
    The project will extend the northbound and southbound left-turn lanes on Branch Forbes Road approaching the interchange. New traffic signals will be installed at the eastbound and westbound off-ramps, and a right-turn lane will be added to the eastbound off-ramp.
  • Project Details:
    • Length: 0.432 miles
    • Start Date: September 11, 2024
    • Estimated Completion: Early 2026
    • Contractor: Watson Civil Construction, Inc.
  • Benefits:
    By addressing traffic queuing and enhancing signalization, this project will significantly improve the safety and functionality of the interchange.
  • Contact Information:

I-4 Interchange Improvement at McIntosh Road (Exit 14)

Visit the project webpage here

  • Scope of Work:
    This project will widen McIntosh Road to add additional left-turn storage for access to both westbound and eastbound I-4. The westbound exit ramp will also be widened to improve traffic flow.
  • Project Details:
    • Length: 1.187 miles
    • Start Date: September 11, 2024
    • Estimated Completion: Early 2026
    • Contractor: Watson Civil Construction, Inc.
  • Benefits:
    Enhanced capacity and upgraded road infrastructure will contribute to smoother traffic movement and reduced delays at this interchange.
  • Contact Information:

For all projects, no final budget was provided.

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