US-6 and Adams Central Intersection 


Project Information

Project #: HSIP-6-4(130)

Control #: 42885


US-6 and Adams Central Intersection Improvements: Alternative Selection


Project Background

The purpose of the proposed project is to reduce the frequency and severity of crashes at the intersection of U.S. Highway 6 (US-6) and Adams Central Avenue, improve mobility of the traveling public, and improve the reliability of the transportation system. The project need is based on the history of crashes at this intersection, as well as concerns over congestion that has escalated with the opening of the new Adams Central Elementary School.


Alternative Selection

After examining public input and preliminary engineering analysis, the Nebraska Department of Transportation (NDOT), has selected the roundabout alternative to help improve the current intersection at US-6 and Adams Central Avenue.


Reason for Roundabout Alternative Selection

While each of the alternatives presented at the public information meeting on November 13, 2019 provided improvements for the intersection, the roundabout alternative was the most effective solution to address the factors that were most important to stakeholders. Of the criteria analyzed for the different alternatives (safety, operations, cost, schedule, and right of way), stakeholders indicated a strong preference for safety and operations (how well the alternative functions) as the two top priorities for selecting a preferred alternative. Based on preliminary engineering analysis, the roundabout demonstrates the best safety and operational performance, outperforming the offset right turn and the restricted crossing U-turn (RCUT) in both selection criteria determined to be of most important to stakeholders.


Project location

Approximate location of US-6 and Adams Central Avenue intersection

Stakeholders indicated a concern about driver safety at the intersection due to the significant number of young drivers that frequent the intersection with the close proximity of the high school. The roundabout alternative will help improve safety by slowing down traffic as it approaches the intersection and minimizing opportunities for vehicles to collide. In addition, the roundabout will improve the existing intersection’s operation, minimizing much of the congestion users currently experience.  


Moving Forward

Looking ahead, NDOT will begin developing final design plans this year. As a part of its partnership with NDOT, Adams County has agreed to partially fund the project. This has allowed for an expedited project schedule, with the goal of construction beginning in the spring of 2020.


Preferred Alternatives: Roundabout 59%, Offset Right Turn 36%, R-CUT 5%


Project Resources


Example traffic flow of roundabout

Example traffic flow of roundabout



Archived Materials

Items from November 13, 2018 Public Information Meeting


Items from October 2018