Phase 3 (Preliminary Design)

Project Location

County State Aid Highway (CSAH) 15 (Manning Avenue) between CSAH 10 (10th Street North) and 30th Street

Project Scope

The third phase of the Manning Avenue (County Highway 15) Corridor Management and Safety Improvement project will:

Addition of center left turn lanes at key locations
Pavement rehabilitation
Stormwater treatment improvements

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DATE	ACTIVITY
Winter 2023	Preliminary Design
Spring 2025	Construction

FAQs

What is the function of Manning Avenue?: Manning Avenue is a high-mobility road that runs north/south through Washington County. It provides access to several neighborhoods, residences, schools, and businesses, as well as a direct connection to I-94.
Why does Manning Avenue need to be upgraded to a 4-lane facility?: The current volume of traffic is nearing a point at which a two-lane roadway can no longer operate efficiently and safely. The expected growth and development in this area will generate enough traffic to require a four-lane facility.
Has a 3-lane facility been considered for Manning Avenue?: A three-lane facility has been considered but would not be able to safely accommodate the volume of traffic anticipated with the future growth in the area.
How will access be “managed” along the corridor?: Properly spacing intersections, combining access points, and separating the roadway with a raised median will help to improve safety and mobility along the corridor. We will work with property owners regarding their individual access needs. Properties will not lose their access, although the access may be combined in some cases. No property will be landlocked.
Why do we need a center median along Manning Avenue?: A center median (4 to 6 inches high) will help increase roadway functionality and safety by separating opposing traffic, while reducing vehicle conflict points and traffic congestion.
Can something be done to slow traffic down?: The Manning Avenue corridor is wide and flat, and there’s nothing in the physical design that can effectively slow traffic down without seriously compromising safety or diverting traffic elsewhere onto less safe routes. Therefore, we need to design roadway features to safely accommodate the speeds that we expect drivers to choose based on the topography and surroundings.

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Phase 3 (Preliminary Design)

Project Location

Project Scope

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Open House #1 (July 18, 2023)

Contact Us

Eden Rogers

Frank Ticknor, P.E.

Mindy Leadholm

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