5.2. SR 08-08-2011 - Laserfiche WebLink

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area, a 12-inch sanitary sewer is recommended to provide additional capacity for future development. G. Traffic and Transportation G1. Realignment /extension of Twin Lakes Road (as Twin Lakes Parkway) from 171St Avenue to south of TH 10 / TH 169 to accommodate future traffic growth in the area. The roadway cross section should include four (4) lanes with left turn lanes at the primary intersections. G2. The future primary full movement access (Twin Lakes Parkway) to TH 10 / 169 in the area should be at a location as far south of the TH 10 /169 /101 interchange as possible (as approved by Mn/DOT). G3. Anew traffic signal system should be constructed at the TH 10 / 169 and Twin Lakes Parkway intersection, with the first development in the area to accommodate projected traffic until such time as a third lane on TH 10 / 169 or an interchange is constructed. The intersection should include dual left turn lanes for southbound Twin Lakes Parkway to eastbound TH 10 / 169 and dual left turn lanes for eastbound TH 10 / 169 to northbound Twin Lakes Parkway. ' G4. The existing traffic signal at TH 10 / 169 and 171St Avenue should be maintained until such time as the new interchange is constructed to accommodate current and future traffic demand. G5. Depending on how and where development occurs in the area and how traffic on TH 10 / 169 increases, a third lane on TH 10 / 169 and (or) an interchange at Twin Lakes Parkway should be planned. Assuming a straight line growth in traffic from existing conditions TH 10 / 169 will require either the third lane or interchange by 2015 for Scenario 1 and 2013 for Scenario 2 or 3. If the third lane is construction the interchange would be needed by 2023 for Scenario 1, 2019 for Scenario 2 or 2017 for Scenario 3. G6. A standard diamond interchange can be constructed to accommodate the projected 2031 traffic for Scenario 1, however for Scenario 2 and Scenario 3 an interchange with additional capacity, such as a single point or diverging diamond would be required. Preliminary concept plans to identify right of way needs should be completed as part of the Twin Lakes Road extension project. G7. The internal roadway and intersections can be constructed as development occurs in the area. These roadways should have a two (2) lane cross section with turn lanes at the primary intersections. G8. The intersection of Twin Lakes Parkway and 168 Avenue will experience delays ' by 2031 in all Scenarios and should be constructed to accommodate a signal system or roundabout in the future when traffic volumes indicate the need. City of Elk River ' Draft Alternative Urban Areawide Review July 2011 Page 13 of 84