A roundabout at Radio Drive and Military Road is proposed to streamline traffic and increase safety at the intersection.
Washington County is planning the estimated $1.3 million project for this summer, but depending on bids and other factors, it may not be finished until 2014.
County engineers are already planning a road rehabilitation project for Radio Drive from Military to Hargis Parkway, so they said it only made sense to design a more efficient feature at one of the busy intersections.
"We have some pretty poor pavements on Radio Drive of that section of the road," project manager Jacob Gave said. "This would be an opportunity to combine some pavement improvement for not only safety but also operational purposes."
The engineers expect a roundabout would accommodate traffic better than the existing all-way stop or even a high level traffic signal.
And from a safety perspective, officials said a roundabout decreases the number of potential vehicle-to-vehicle interactions at Radio Drive and Military Road.
"With the roundabout, you'll have to decrease speed ... but you never have to come to a complete stop if there is not another vehicle around," Gave said.
Washington County is working on a number of other road projects this year, including major rehabilitation to Woodbury Drive, also known as County Road 19.
That's one of the reasons construction may not happen on the Radio Drive-Military Road roundabout. It also depends on how funding comes through from the state aid fund.
Traffic at Military Road and Radio Drive is estimated at up to 6,100 vehicles a day and will not increase to the 10,000 or 20,000 point until 2030, according to the studies.
Other projects that will affect traffic around the county this year include the reconstruction of County Road 19, Military Road (County Road 20) and 70th Street (County Road 22) in Cottage Grove.
"All things are pointing toward we're going to get the roundabout done this year but we still want to maintain flexibility," Gave said.A