Aldermen are recommending a smaller version of a roundabout at St. Andrews Drive and Denmark Road.
The personnel, finance and public works committee last week agreed that the “mini roundabout” would be appropriate at the intersection due to the type of traffic traveling in that area, as well as the cost to build it.
Union officials selected the mini roundabout among three options for the intersection.
Dave Christensen, with Cochran, told committee members that a roundabout is the best option for that intersection.
“Getting away from a controlled intersection is a good thing,” said Christensen.
Those options also included a “full-blown” roundabout or simply a median island to split traffic with a four-way stop.
The “mini” roundabout would have a fully mountable center that vehicles could drive over.
The island lip should be no higher than 3 inches in order for trucks to easily drive over it. The two current roundabouts in Union have islands with 2-inch lips.
Most of the traffic at the intersection will be cars and other passenger vehicles.
“You don’t have as many trucks on that road that need a full-blown roundabout,” said Alderman Bob Schmuke.
The mini roundabout would require seven-tenths of an acre of right of way to be acquired.
The second option is the larger roundabout that would require one-third of an acre of right of way. That is the most costly option.
The third option includes median islands on Denmark Road and color crosswalks as an effort to slow traffic at the intersection.
That option would require the purchase of three-tenths of an acre of land, and is the cheapest to construct.
The intersection improvements are part of the second phase of a Denmark Road widening initiative which is in the 2014-17 Transportation Improvement Program (TIP).
The project is slated for construction in 2017.
It includes widening, resurfacing and sidewalk construction from St. Andrews Drive to Grandview Farms Drive. The proposal includes a low-water bridge replacement.