Open House #2 Tuesday, October 10, 2017 CH 21 Downtown Prior Lake - PowerPoint PPT Presentation

CH 21 Downtown Reconstruction Project Open House #2 Tuesday, October 10, 2017 CH 21 Downtown Prior Lake Reconstruction

Tonight’s Presentation Review Project Alternatives • Key Benefits/Challenges What you can expect • CH 21 Downtown Prior Lake Reconstruction

2019 Project Alternatives TH 13/CH 21 Intersection as… Primary Arcadia Ave. Main Ave. Arcadia Ave. Main Ave. Intersection at… A-1 B-1 A-2 B-2 Potential Project Alternatives…

A-1 Arcadia w/ Traffic Signal at TH 13 Intersection Controls • Duluth: Right-in/-out • Arcadia: Signal • Main: Right-in/-out • TH 13: Signal

A-1 Arcadia w/ Traffic Signal at TH 13 Intersection Controls • Duluth: Right-in/-out • Arcadia: Signal • Main: Right-in/-out • TH 13: Signal

A-1 Arcadia w/ Traffic Signal at TH 13 You can expect: Key Benefits • Stop & Go Traffic - speeds at or near posted • Fewest property impacts when green, queued up when red • Best pedestrian crossing • 35-50% reduction in delay at TH 13/CH 21 performance • 2-3 hours of congestion • Lowest crash potential • Pedestrian-Focused Main Avenue • Vehicle-Oriented Perimeter of Downtown Key Challenges • Fewer downtown access points • Less efficient traffic operations Approximately same cost as other alternatives with variations that remove the Pleasant St. and • Highest project costs Arcadia St. extensions

B-1 Main w/ Traffic Signal at TH 13 Intersection Controls • Duluth: Roundabout • Arcadia: ¾ Access • Main: Signal • TH 13: Signal

B-1 Main w/ Traffic Signal at TH 13 Key Benefits You can expect: • Most downtown access points • Stop & Go Traffic - speeds at or near posted • Managed traffic movements when green, queued up when red • Lowest cost • 35-50% reduction in delay at TH 13/CH 21 • 2-3 hours of congestion Key Challenges • Vehicle-Oriented Main Avenue • Least efficient traffic operations • Main Ave Signal subordinate To TH 13 • Longest Main Avenue delay • 60% increase in delay for Main Avenue • Highest crash severity • Stacked vehicles on Main Avenue • 4-6 times longer pedestrian crossing

A-2 Arcadia w/ Roundabout at TH 13 Intersection Controls • Duluth: ¾ Access • Arcadia: Roundabout • Main: ½ ¾ Access • TH 13: Roundabout

A-2 Arcadia w/ Roundabout at TH 13 You can expect: • Lower and more consistent speeds on CH 21 Key Benefits • 85% reduction in delay at TH 13/CH 21 • Low property impacts • More crashes at TH 13/21 • Most efficient traffic operations • Fewer injury crashes • Best accommodates local and • Pedestrian-Vehicle balance on Main Avenue regional trips • Less burden on the city street system • 35% reduction in delay for Main Avenue Key Challenges • High number of crashes • Risk in funding eligibility • Pedestrian safety

B-2 Main w/ Roundabout at TH 13 Intersection Controls • Duluth: Roundabout • Arcadia: ¾ Access • Main: Roundabout • TH 13: Roundabout

B-2 Main w/ Roundabout at TH 13 Intersection Controls • Duluth: Roundabout • Arcadia: ¾ Access • Main: Roundabout • TH 13: Roundabout

Alternative A HYBRID No Left Turn from TH 13 to Pleasant St. Intersection Controls • Duluth: ¾ Access No Arcadia Ave. • Arcadia: Roundabout Extension • Main: Right-in/-out • TH 13: Signal

2019 Project Alternatives Under Consideration Roundabout Signal A-HYBRID Arcadia with Traffic Signal at TH 13 A-1 Arcadia with Traffic Signal at TH 13 B-1 Main with Traffic Signal at TH 13 A-2 Arcadia with Roundabout at TH 13

Where are We Going? • Public Input on alternatives thru October 27 th Speak Up Scott County until Sunday, October 15 th • • MnDOT Coordination on TH 13 Intersection Alternatives • City Council Work Session regarding city roadway impacts • County Board Work Session regarding county roadway impacts • City Council Meeting to consider Preferred Alternative – November 6 th

Thank you! Questions will be taken in the Parkview Room following the presentation. Check out the website! Project staff will be available until 7:30 www.movingforward13-21.com p.m. tonight. CH 21 Downtown Prior Lake Reconstruction