Thursday, February 29, 2024

Residents get chance to review Highway 57 plan

Area residents got a chance to learn about the latest plans to reconstruct Highway 57 in Mantorville at a public meeting last week. The work is scheduled for next summer. The presentation was given the engineering firm whks, which is overseeing the project.

The project is designed to improve pavement quality, increase pedestrian safety, improve access to downtown Mantorville from the County Road 12 trail, and reduce vehicle speed along Highway 57.

In addition to replacing the pavement, upgrades are planned for existing sidewalk/pedestrian ramps to meet the ADA requirements and additional sidewalks will be put in place to fill in current gaps. The driving lane will be reduced to 11 feet and highway shoulders will be reduced to 10 feet. Bump-outs will be constructed at the 5th Street intersection and a striped bike lane will be in place from County Road 12 to 4th Street.

The project will also replace water and sanitary sewer crossings under the new roadway, and water services will also be replaced as will storm sewers.

The project will be done in phases: Bridge to 4th Street, 4th Street to 5th Street, 5th Street intersection, 5th Street to 6th Street, 6th to 7th Street, and 8th to 9th Street.

Several residents had questions and/or concerns about the bump-outs, or curb extensions. A bump-out is used as a traffic calming measure that extends the width of the sidewalk and curb line at crosswalks to make crossing a street safer for pedestrians by narrowing the crossing distance and increasing pedestrians’ visibility to oncoming traffic. There were concerns the bump-outs would make it more difficult for large vehicles to make turns at the intersection but wkhs engineers said that would not be an issue.

There were also questions about lighting along the highway. Project engineers are currently working with Xcel Energy on the lighting layout and overhead lines and poles relocation to alleyways between 4th and 6th Streets. LED Luminaire Acorn lights have been chosen for the poles.

Construction is anticipated to begin in early May 2024 and continue through late August.

During the construction Highway 57 traffic will be detoured to County Road 9. The bridge to 4th Street will be closed to local traffic for two to three days during the “Bridge Phase” but the roadway will always be open to emergency vehicles.

Throughout the construction at least three side streets will be open for crossing. The 9th Street intersection will be closed during the “9th Street” Phase of the project and will remain open unless active work is occurring. Pedestrian access to downtown businesses will be maintained as much as possible.

 

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