ND23A New Roundabout

The ND23A New Roundabout project located at the intersection of ND23 & 12th Street SE consisted of replacing a radial t-intersection with a concrete roundabout. The project installed a 10′ wide concrete shared-use path, curb and gutter, lighting, and stormwater improvements. Roundabouts continue to improve the safety of the traveling public with improved traffic flow, fewer crashes, and less severe crashes.

Brosz completed the environmental documentation, preliminary engineering, surveying, and construction engineering for the project. Design issues include converting a rural ditch section into an urban curb and gutter. Traffic control and coordination were critical during construction.  To address traffic control issues and safely maintain two-way traffic, bypasses were constructed and then maintained throughout the duration of the construction phase.  In addition, the project required in-depth discussions with both the City of Watford City and the NDDOT to coordinate the construction phasing with the City’s planned development in the area.