Ord 1423 (2) - Laserfiche WebLink

Home Browse Search

1-5:Aurora Donald Interchange(Exit 278) Interchange Area Management Plan for Marion County Approval ODOT KN19062 Oregon Department of Transportation—Region 2 2.3 Transportation Facilities 2.3.1 Road Facilities The ownership,functional classification, and other special designations of area roadways are listed in Table 2-3. The functional classifications of the primary roadways in the study area (1-5 and Ehlen Road) indicate that the primary objective of these corridors is to efficiently move high volumes of traffic over long distances. Federal and state designations of 1-5 as a truck/freight route highlight the national and local importance of accommodating the movement of large vehicles, which is consistent with many of the land uses present in the interchange area. Table 2-3. Roadway Jurisdiction and Functional Classifications Roadway Name Jurisdiction Functional Classification Other Designations Interstate 5(1-5) Oregon Dept.of Interstate Highway National Highway System(NHS) Transportation National Network(Federally designated Truck Route) State Freight Route Reduction Review Route Ehlen Rd Marion County Principal Arterial(west of 1-5) Primary Detour Route(west of 1-5) Arterial(east of 1-5) Primary and Alternate Detour Route (east of 1-5) Bents Rd Marion County Minor Collector Bents Ct Marion County Local Road Dolores Wy Marion County Local Road Sources:1999 OHP as amended May 2015.Marion County Rural TSP,2005. 2.3.1.1 Interchange Conditions and Geometric Characteristics Typical geometric characteristics of area roadways are listed in Appendix D,Table 2. All roadways have one travel lane in each direction.The only turn lanes in the study area are at the intersection on Ehlen Road with Bents Court,where there is a westbound left-turn lane on Ehlen Road and separate northbound left-and right- turn lanes on Bents Court.The wide flared ends of the 1-5 northbound and southbound off-ramps as they meet Ehlen Road are often used as if they were separate left-and right-turn lanes, but they are not formally designed or striped as such. Intersection lane configurations are illustrated in Figure 2-3. 2.3.1.2 Traffic Controls Traffic control types present in the study area are illustrated in Figure 2-3, including locations of stop signs and posted speeds.There are no traffic signals in the study area, and all minor street approaches are stop- controlled. Consistent with the functional classifications, posted speeds on 1-5 and Ehlen Road remain fairly high, with the posted speed on Ehlen Road only dropping to 35 mph through the interchange area. Even though Bents Road is classified as a minor collector,the posted speed remains high at 55 mph. There is a traffic separator in the median of Ehlen Road, approximately 2 feet wide and 350 feet long,that prohibits left turns to and from the Flying J Travel Center driveway on the south side of the road. On-street parking is not designated on any study area roadway, but trucks have been observed parking on the shoulders of the I-5 ramps. No Parking signs have been posted on Bents Court, Bents Road, and Ehlen Road (west of 1-5). July 2020 1274-3012-031 2-5