*The design above is not final, and is subject to refinement by the project team.
Alternative Comparison Chart
Will the addition of roundabouts be included in the alternatives?
During the initial public outreach, the project team heard strong concerns about safety, speeding, and the narrow lanes and lack of shoulders along Frogtown Road. Right-of-way impacts were also a significant concern. While roundabouts were considered in the early design phase, they were not carried forward in preliminary design due to potential impacts on surrounding property and nearby streams.
Maintenance of Traffic Concepts
Alternative A (3-Lane)
The proposed construction of Alternative A maintains two-way traffic throughout construction except at I-71/I-75 overpass. Both alternative designs propose a road closure at the I-71/75 overpass to construct this portion of the project. Alternative A would take two years to construct.
Alternative B (2-lane)
Maintaining traffic for Alternative B is expected to be more difficult as the reconstructed roadway will have the same number of vehicular lanes and generally be in the same location as the existing roadway. Road closures are anticipated with access maintained only for local property owners. Preliminary concepts for maintaining access to properties within each closure area have been developed for Alternative B to provide property owners an idea for how long they'll be able to access their homes during the closure.
To build Alternative B, Frogtown Road would need to be closed to through traffic for portions of three years and construction would take four years.
The links below show the preliminary concepts for construction phases, areas of where the road will be closed per phase, and maintenance of local access proposed for the construction of the two lane design. Phase four does not include a closure and will maintain two-way traffic similar to Alternative A.
