Welcome to the North Dakota Department of Transportation website to provide information on four traffic improvement projects happening on North Dakota 22 in the Dickinson area. Information will be posted and updated frequently to keep you informed on the current status of these construction projects.
Click here to learn more about the Killdeer Roundabout!
ND 22 Killdeer Roundabout
The Killdeer Roundabout is located on the intersection of North Dakota Hwy 22 and Hwy 200. A roundabout is a circular intersection, which allows drivers to travel counterclockwise around a center island. When entering a roundabout, drivers must yield to traffic inside the roundabout. Exits made in this type of intersection are always done to the right.
One of the main reasons for utilizing a roundabout intersection is that it will help cause less traffic congestion. However, there are several other benefits that result from using this type of intersection. These benefits include; elimination of high speed crashes, improved traffic flow, increased traffic capacity and the ability to accommodate vehicles of all sizes. Increased safety for travelers is a result of all of these benefits.
There are 32 points of conflict in a traditional 4-way stop intersection. Roundabout intersections contain only 8 points of conflict. For this reason, roundabouts have 40% fewer vehicle collisions, 80% fewer injuries, and 90% fewer serious injuries and fatalities, according to a national study of roundabouts in the United States.
The roundabout located on the intersection of North Dakota Highway 22 and Highway 200 is the first roundabout located on a North Dakota state highway and will facilitate the current influx of traffic as well as long-term traffic increases.