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I-75 / US 301 Interchange Design

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FAQs

I-75 / US 301 Interchange Design
  1. What is the current schedule for the I-75/U.S. 301 Interchange design project?
    Design: Ongoing
    Right-of-way acquisition: Funded FY 17
    Construction: Funded FY 20

  2. How can I provide a comment on the project?
    Comments can be directed to Walter Breuggeman, P.E., FDOT Project Manager in the following ways:

  3. What is an Interchange?
    An interchange is a grade-separated intersection (one road passes over another) with ramps to connect them. For busy roads this is a necessity to keep traffic moving. Typically, interchanges are designed for the projected traffic for the region. This makes some designs more beneficial than others with respect to operation, right-way impacts, etc.

    A complete interchange has to provide access to and from any direction from each facility. Full freeway-to-street access with a conventional interchange requires a minimum of four ramps, to get on and off in each direction. In Florida, full interchanges are required for a future design. Partial interchanges are not allowed unless special needs are displayed (park and ride, by-pass routes, etc.)

    An exit ramp, or off ramp, leaves the main roadway for another road; an entrance ramp, or on ramp, enters the roadway. These terms make the most sense when one freeway intersects a surface street; entrance and exit are from the point of view of the freeway.

    An interchange is a simple solution to a capacity problem. Safety, cost, environment, development and politics can vary at each site. Many interchanges are slight variations of a few basic types. The most commonly used types of interchanges are the diamond, cloverleaf and directional.

    The existing I-75/US 301 loop-style interchange will be reconfigured to form a tight diamond.  The diamond interchange is the most common type where a major facility intersects a minor highway. The design allows traffic to flow freely on the major highway but creates at-grade intersections on the minor highway with the ramps.