04-18-2022 Agenda - Laserfiche WebLink

CASS COUNTY ROADWAY 18 EXTENSION STUDY – CASS COUNTY, ND 4 3 EXISTING CONDITION ANALYSIS 3.1 ROADWAY TYPICAL SECTION AND ATTRIBUTES The existing 52nd Street SE and CR 18 roadway typical sections are shown in Figure 1. Three typical sections are shown in Figure 2; one for the existing aggregate surfaced roadway section on 52nd Street SE throughout the study area, CR 18 for the section within 2 miles of CR17, and one for the bridge section across the Sheyenne River. The 52nd Street SE roadway section is currently an aggregate surface with open ditch drainage along both the north and south sides of the roadway. As shown in Figure 2, the roadway, ditch, and right-of-way (ROW) widths vary based on the location within the corridor, but the aggregate surface is typically 28 to 30 feet wide. The CR 18 typical section is similar to the 52nd Street SE typical section with a slightly wider aggregate surface of approximately 30 to 32 feet. The townships both complete annual aggregate surface maintenance on 52nd Street SE. The spread rate of gravel used for each township vary between 150 cubic yards per mile (CY/mile) to 365 CY/mile based on the amount of available funding. Cass County currently maintains CR 18 at a gravel spread rate of 365 CY/mile. Driveway and field access locations along both 52nd Street SE and CR 18 typically have corrugated metal pipe culverts for drainage. Flood protection measures have been implemented on the east end of the study area. The measures include levees and sluice gates installed on the north side of the roadway. Approximately 0.75 miles west of the Sheyenne River bridge, two transverse corrugated metal pipe culverts cross 52nd Street SE providing conveyance for a tributary of the Sheyenne River. Several drainage improvements have been made at the intersection of 52nd Street SE and CR 17 including multiple culverts and roadway ditch improvements. The 52nd Street corridor speed limit is 55 miles per hour (MPH) with the exception of reduced speed zones of 40 MPH approaching the Sheyenne River bridge and 25 MPH immediately adjacent to the bridge. The 52nd Street SE intersection with CR 15 has two-way stop-control on the 52nd Street SE approaches and the intersection with CR 17 is controlled by a yield sign on the 52nd Street SE approach and stop sign on the CR 18 approach. Several north-south township roadways intersect with 52nd Street SE throughout the project study area. The north-south township roadways are typically yield controlled with yield signs at the intersections with 52nd Street SE. Additional access locations along 52nd Street SE are typically at driveway approaches or field locations. The spacing and locations of the access points along the corridor are acceptable, but some may need to be slightly relocated or combined if any improvements to the roadway are made. The roadways in the study area were included in the functional class figure within the Cass County Comprehensive and Transportation Plan. The Cass County Functional Class figure lists both CR 15 and CR 17 as Major Collectors with CR 18 and 52nd Street SE as Local/Township classification. North Dakota 46 is classified as a Minor Arterial in the comprehensive plan and as a State Corridor with the North Dakota Department of Transportation (NDDOT) State Highway Performance Classification System. According to the Comprehensive Plan, both CR 15 and CR 17 are classified as Regionally Significant Candidate Corridors. Vehicle load restrictions are typically placed on CR 15 and CR 17 during the spring thaw.