Railroad Arch Culvert Repair at Southwest Bike Path

Project Overview

This project includes deconstructing and reconstructing in-place the existing wall, matching the existing aesthetic and materials, and reusing existing stone when possible. 

As part of the reconstruction, the Contractor will shore the existing slope by embedding soil nails into the slope, placing geotextile fabric over the soil nails, installing steal bearing plates over the soil nails, and then applying shotcrete cement to stabilize the materials in place. 

Once this work is complete, the stone arch will be rebuilt covering this shotcrete cement. Once complete, the only visible wall will be the reconstructed stone wall.

Additionally, once this work is complete, the Contractor will restore the site, reseed and rebuild the berm at the southern portion of the park.

Background

In 2018, the City of Madison hired InSite Consulting Architects to evaluate the 1847 stone retaining wall within the WisDOT-owned Southwest Bike Path property adjacent to Glenwood Children’s Park.

View InSite’s Consulting Architects Railroad Arch Culvert Preliminary Assessment Glenwood Children’s Park.

This assessment indicated that the stone arch is deteriorating rapidly with two primary threats: “the failing physical integrity of the weathering sandstone and the undercutting and settling of the base layer of sand, stone and earth.”

In 2021, the undercutting was repaired through the Glenwood Childrens Park Storm 2020 Contract.

In 2023, funding was adopted in the Stormwater Utility Capital Improvement Plan to repair the weathering sandstone identified in the InSite Consulting Architects report.

Parks and Engineering have discussed this project with the Wisconsin State Historical Society and Landmarks Commission and confirmed neither approval is required for this project on land owned by the State of Wisconsin Department of Transportation.

An existing lease agreement between the City of Madison and the State of Wisconsin require the City of Madison to maintain facilities within this area.

Public Involvement

There are a number of points of contact during this project where the public is encouraged to give feedback as part of public information meetings and public hearings. Dates, times and locations are indicated below:

• April 27, 2023 Public Information Meeting Recording
• April 27, 2023 Public Information Meeting PowerPoint Presentation 
• Staff presentation of project at Dudgeon Monroe Neighborhood Association Council Meeting on April 5, 2023.
• Staff presentation of project at Westmorland Neighborhood Association Board Meeting on April 11, 2023.

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City Process, Meetings 

Common Council 6/6/2023 Approval to bid, 7/25/2023 Approval to Award and Accept Bid
Board of Public Works  5/17/2023 Approval to bid, 7/19/2023 Approval to Award and Accept Bid

More Information

Fact and Details Sheet