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The City is considering replacing the existing bridge because the existing limestone (relatively weak building material) masonry railings and corrugated-metal arch are deteriorating. In addition, the height and strength of the railings does not meet current standards and the narrow deck is inadequate to safely accommodate pedestrians and bicyclists.
Construction of a replacement bridge is unknown at this time. Staff is completing the Section 106 review process and must consult with the State Historic Preservation Office (SHPO) and other interested parties, such as relevant state agencies, local heritage preservation commissions, and interested individuals, as it goes through the process.
Multi-plate Corrugated Metal Arch
Limestone Masonry Railing and Headwall
Concrete Footing — Cracked in multiple locations, scour occurring under north footing.
Metal Arch — Corroded at concrete footing. Arch could be strengthened but corrosion would continue and bridge’s load-carrying capacity would be limited, as it is now.
Fill — Fill above metal arch must be removed to repair corroding arch and cracked concrete footings. Stone railings/headwalls would be difficult to brace during process.
Limestone Railing & Headwall — Railing doesn’t meet crash standards. Stone is severely deteriorated.
Roadway — Roadway needs to be 10’ wider for pedestrian and bike use. West headwall would have to be taken down stone by stone and rebuilt 10’ to the west. Stone would crumble in process.
The City is considering replacing the existing bridge because the existing limestone (relatively weak building material) masonry railings and corrugated-metal arch are deteriorating. In addition, the height and strength of the railings does not meet current standards and the narrow deck is inadequate to safely accommodate pedestrians and bicyclists.
Construction of a replacement bridge is unknown at this time. Staff is completing the Section 106 review process and must consult with the State Historic Preservation Office (SHPO) and other interested parties, such as relevant state agencies, local heritage preservation commissions, and interested individuals, as it goes through the process.
Multi-plate Corrugated Metal Arch
Limestone Masonry Railing and Headwall
Concrete Footing — Cracked in multiple locations, scour occurring under north footing.
Metal Arch — Corroded at concrete footing. Arch could be strengthened but corrosion would continue and bridge’s load-carrying capacity would be limited, as it is now.
Fill — Fill above metal arch must be removed to repair corroding arch and cracked concrete footings. Stone railings/headwalls would be difficult to brace during process.
Limestone Railing & Headwall — Railing doesn’t meet crash standards. Stone is severely deteriorated.
Roadway — Roadway needs to be 10’ wider for pedestrian and bike use. West headwall would have to be taken down stone by stone and rebuilt 10’ to the west. Stone would crumble in process.
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Staff has been reviewing rehab and replacement options with many historic agencies. These include Corp of Engineers, State Historic Preservation Office, and MnDOT Cultural Resources Unit. We are getting close to a memorandum of understanding related to a full replacement of the bridge. This MOU would detail how to document the existing bridge before replacement (photos and notes) and that a informational board would be required near the bridge. Staff hopes to have the MOU signed in the next few months. After the MOU is completed, staff will ask the Heritage Preservation Commission to review a certificate of appropriateness (COA). After the COA is complete, staff will start applying for grant funding to assist with paying for the project. Thanks
Staff has been reviewing rehab and replacement options with many historic agencies. These include Corp of Engineers, State Historic Preservation Office, and MnDOT Cultural Resources Unit. We are getting close to a memorandum of understanding related to a full replacement of the bridge. This MOU would detail how to document the existing bridge before replacement (photos and notes) and that a informational board would be required near the bridge. Staff hopes to have the MOU signed in the next few months. After the MOU is completed, staff will ask the Heritage Preservation Commission to review a certificate of appropriateness (COA). After the COA is complete, staff will start applying for grant funding to assist with paying for the project. Thanks