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Council approves MnDOT sound wall agreement after cost estimates nearly double; residents to share increased assessments
Summary
Council approved a cooperative construction agreement with MnDOT for a sound wall and pedestrian bridge near I‑90; updated MnDOT estimates nearly doubled project cost, raising the city’s local 10% share to about $200,000 and increasing anticipated assessments for roughly 11 benefiting properties. Vote was 6–1, with Councilmember Helly dissenting.
The Austin City Council voted 6–1 on April 6 to enter a cooperative construction agreement with the Minnesota Department of Transportation for a sound wall south of I‑90 and a pedestrian bridge near Wildwood Park.
Engineering staff explained that the city’s local share is 10% of construction costs under the grant-supported Greater Minnesota Stand‑Alone Noise Barrier Program, previously estimated at about $100,000. “Since that time using MnDOT's best estimates the cost has nearly doubled. So, now our local 10% cost is around $200,000,” staff said, noting the council previously agreed to split the local portion 50/50 between tax levy dollars and property assessments.
Because MnDOT’s updated estimate raised local costs, assessments that were earlier estimated will also increase; staff said roughly 11 properties would be assessed and that the city has not yet begun the formal assessment notice process. The agreement also assigns routine maintenance responsibilities to the city for the residential side of the sound wall and minor bridge maintenance comparable to existing trail maintenance (sweeping, snow removal).
Council discussion focused on notification and timing: members expressed concern residents had not been informed about the increased assessment amounts and questioned whether tabling the approval would harm the city’s standing with MnDOT or delay the bidding schedule. One council member said the city had given its word in 2023 and favored proceeding; another recommended clearer resident outreach.
On roll call, Councilmember Helly voted no; the resolution passed with six ayes. Staff noted some funds had previously been set aside in levy budgeting and that an additional $50,000 would be required to meet the updated local contribution; the formal assessment process will follow after bids finalize actual costs.
The council did not set a new assessment schedule at the meeting; staff said the assessment notices will be issued once the project is bid and final costs are known.
