04-18-2022 Agenda - Laserfiche WebLink

CASS COUNTY ROADWAY 18 EXTENSION STUDY – CASS COUNTY, ND 29 5.3 NEEDS FOR THE PROJECT 5.3.1 SYSTEM CONNECTIVITY The existing Cass County roadway system provides for consistent and connected roadways throughout the County to allow travel between cities and towns. The existing CR 18 is located from the interchange of Interstate 29 west for 4.5 miles to the intersection with CR 17. Existing CR 18 does not continue to the west as a County roadway. The extension of CR 18 between CR 17 and CR 18 would provide an additional system connection and linkage to the City of Kindred and also between CR 15 and CR 17. A goal of this study is to provide system connectivity for the County roadway system. 5.3.2 INSUFFICIENT ROADWAY SURFACE CONDITIONS DUE TO SUBGRADE During the spring and fall seasons, the township roadway experiences freeze-thaw temperature fluctuations that lead to rutting and an insufficient roadway surface for travelers along the roadway. As reported by local residents and travelers of 52nd Street SE, the existing roadway cross-section doesn’t shed water during rain and snow events and creates muddy and slick roadway surface conditions. The roadway surface drainage issues created by the cross-section are partially due to the subgrade being deficient to maintain the roadway maintainer graded crown of the roadway. The townships have previously reported issues with maintaining a crown after the roadway maintenance crews have graded the roadway with additional aggregate surfacing. A goal of this project is to provide recommendations/alternatives for a roadway surface that remains consistent in surface condition and cross-section through addressing any issues with the subgrade conditions. 5.3.3 MINIMIZE THE POTENTIAL FOR CRASHES ALONG THE CORRIDOR The section of roadway included in this study has experienced six crashes during the study period. Of the six crashes, three were angle crashes at intersections throughout the study area. Several local residents and travelers of the roadway have commented on horizontal sight distance issues at the intersections due to standing crops or trees. The proposed roadway ROW is approximately 50 to 84 feet wider than the current ROW on the roadway. It is expected that the wider ROW would provide an improved horizontal sight distance at the intersections. The remaining three crashes along the corridor where non-collisions with motor vehicles running off the roadway. It is unknown if the foreslopes and backslopes of the roadway currently meet Roadside Design Guide standards for cross slopes. The proposed roadway typical section will provide sufficient fore- and backslopes to meet the Roadside Design Guide standards. A goal of this project is to provide recommendations/alternatives for a roadway alignment and typical section that meets all design and safety requirements and minimizes the potential for crashes along the corridor.