Project goal: Improve sidewalks, drainage

This project will remove the entire road and replace it with new materials. MnDOT will also construct new curbs, gutters, and sidewalks.

Improving the sidewalks and the drainage of the roadway is also a vital goal of the project.

Existing roadway

The image below shows and example cross section of the current roadway. The steep slopes in portions of the corridor create drainage issues. Some pedestrians find them difficult to navigate. Also, the sidewalks are not ADA compliant.

Flattening the corridor will fix drainage issues. The sidewalks will also become ADA compliant.


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Design Standards


The team is designing the road to meet these standards:

Roadways

  • The slope across the driving lane should not exceed 2.5%.
  • The slope across the parking lane should not exceed 5.0%.

Sidewalks and crosswalks:

  • The slopes of sidewalks in the direction of travel cannot be more than 5.0%. (0.6 inch of rise for every foot of travel)
  • The slope across a sidewalk cannot be more than 2.0%. (0.24 inch of rise for every foot across)

Curb ramps:

  • The slope of the curb ramps in the direction of travel cannot be more than 8.3%. (1.0 inch of rise for every foot of travel)
  • The slope across the curb ramp cannot be more than 2.0%. (0.24 inch of rise for every foot across)
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Construction impact

Regrading is needed to achieve these goals. If the footprint of the current roadway is kept, the grading will be extensive. It will also have the most impact people's property. If the footprint of the future roadway is reduced, then the grading will be less extensive. There would be less impact to people's property.


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