Agenda - Council Work Session - 10/12/2021

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September 11, 2021 Page 36 Highway 10 Highway 10 is a 6-lane freeway from I-35W to Hanson Boulevard, a 4-lane freeway from Hanson Boulevard to Fairoak Avenue, then a 4-lane expressway to Highway 169. The segment between Armstrong Boulevard to Fairoak Avenue will be converted to a freeway in the next four years. Two segments of Highway 10 were chosen for concept development. • Segment A: 4-lane expressway from Armstrong Boulevard to the Highway 10/101/169 intersection, approximately 5.4 miles long and currently part of an Elk River led study. • Segment B: 4-lane freeway from Hanson Boulevard to Round Lake Boulevard, approximately 2.8 miles long. Highway 10-Al: At -grade improvements. The Highway 10-A1 concept modifies and consolidates existing intersections and constructs a 2.5- mile frontage road to maintain local access to the highway. The lower cost assumes the five busiest intersections are converted to RCUTs and the other intersections become right -in -right -out. The higher cost assumes all seven intersections in the corridor become signalized. Highway 10 is not assumed to be reconstructed in this concept. Frontage roads and associated right- of-way were estimated based on a 36' wide urban frontage road system that utilizes existing roads to connect businesses and residential areas to major intersections. Figure 17: Highway 10-Al: At -Grade Improvements DEPARTMENT OF TRANSPORTATION NORTHWEST METRO Mississippi River Crossings Feasibility Analysis CONCEPT DEVELOPMENT USTH 10 - Al At -grade Improvements ▪ Primary intersection search area Corridor improvement area Access location/intersection control will not be defined by this study Elk River is currently leading a study of this corridor considering at -grade and grade - separated solutions. Northwest Metro Mississippi River Crossing Feasibility Analysis