Agenda - Council Work Session - 10/12/2021

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Jennifer Wiltgen Minnesota Department of Transportation June 25, 2021 Page 9 Year 2040 Concept 2 Concept 2 incorporated the following improvements into the year 2040 highway network. • TH 10 lane addition between Round Lake Blvd and Hanson Blvd • TH 10 at -grade improvements between TH 101 and Armstrong Blvd • TH 101 southbound to eastbound I-94 flyover and interchange improvements • TH 610 mobility improvement between US 169 and TH 252 Daily traffic forecasts for Concept 2 are provided in Figure 4.2 in the appendix. These results show small increases in traffic are attracted to the corridors where improvements are located. Specifically, TH 10 has increases of 400 and 500 vpd associated with the improvements in Coon Rapids and Elk River, respectively. Similarly, an increase of 700 vpd is expected on TH 101 near the I-94 interchange. A daily traffic increase of 12,700 vpd is expected on the improved section of TH 610, reflecting traffic that would be expected to shift to this highway from parallel local roads. Year 2040 Concept 3 Concept 3 introduces a new Mississippi River crossing in between TH 101 and US 169. This new facility was assumed to connect to the south leg of the existing Armstrong Boulevard/TH 10 interchange north of the river and connect to the north leg of the Dayton Parkway/I-94 interchange south of the river. The new facility was assumed to be a four -lane divided arterial roadway with a speed limit of 45 miles per hour (mph). The daily forecasts for Concept 3 are provided in Figure 4.3 in the appendix. The number of vehicles expected to use the new river bridge over the Mississippi River in 2040 is 24,200 vpd. This reflects shifts of 7,900 vpd off of the TH 101 bridge and 10,300 vpd off of the US 169 bridge. The shift of traffic from US 169 to the new river crossing approximately offsets the anticipated growth on this facility between 2018 and 2040 no build conditions, resulting in a 2040 forecast that is comparable to existing traffic volumes. Year 2040 Concept 4 Concept 4 also include a new Mississippi River crossing in between TH 101 and US 169 similar to Concept 3. The alignment of the new river crossing connection was consistent with Concept 3, but the facility type was assumed to be a four -lane expressway with a speed limit of 55 miles per hour (mph) and a higher capacity. The daily forecasts for Concept 4 are provided in Figure 4.4 in the appendix. The number of vehicles expected to use the new river bridge over the Mississippi River in 2040 is 27,600 vpd. This reflects shifts of 8,300 vpd off of the TH 101 bridge and 12,000 vpd off of the US 169 bridge. Since the expressway design in Concept 4 attracts more traffic compared to the arterial design in Concept 3, the traffic shifts from adjacent river crossings are slightly larger.