The Ohio Department of Transportation says construction will begin next week on another new roundabout for northern Butler County. The northern junction of US-127 and Ohio-73 in Collinsville will get a single lane roundabout, costing around $2.6 million. Traffic will be maintained with one 11 foot wide lane in each direction, although periodic closures are possible. Sunesis Construction Company will perform the work, which is scheduled to be completed in late spring or early summer of 2022.