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Troy I-75 Sound Walls Build Through Fall 2027

Troy contractors and I-75 businesses should plan around roughly two years of wall construction along the corridor.

Updated on Nov. 3, 2026 in Construction

Long pale-gray concrete sound wall beside an empty Interstate 75 shoulder in Troy, with a construction crane and stacked precast panels in the foreground.
Construction is underway on two sound walls along Interstate 75 in Troy, with work starting in April 2026 and expected to finish in fall 2027. AI Illustration. Upload story photo >

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Construction is underway on two sound walls along Interstate 75 in Troy, with work starting in April 2026. The walls, funded by a $10 million state earmark, are expected to take roughly two years, finishing in fall 2027, and will matter most to Troy residents and businesses near the highway.

Why it matters

Residents and businesses along I-75 complained of excessive highway noise, and some reported higher noise levels after changes from the I-75 Modernization Project. Of 14 noise barriers evaluated in a Michigan Department of Transportation sound study, only two met the agency's feasibility and reasonableness criteria, which is why these two segments were advanced.

Two of 14 noise barriers evaluated by MDOT met its feasibility and reasonableness criteria, leading to walls of 2,666 feet and 4,273 feet along I-75 in Troy. The project is backed by a $10 million earmark from the 2024 state budget, while MDOT manages a separate $1 million per year for noise wall repair and rehabilitation.

The players

Michigan Department of Transportation (MDOT)

The state agency that builds and maintains state highways, including noise barriers, and that ran the sound study and manages a $1 million annual noise wall repair budget.

Sharon MacDonell

Michigan state representative who sought the $10 million earmark funding the sound walls in Troy.

Michael Webber

Michigan state senator who sought the $10 million earmark funding the sound walls in Troy.

The details

The first wall runs 2,666 feet from Wattles to Long Lake, and the second runs 4,273 feet from Crooks to Coolidge. The walls were selected after MDOT facilitated a sound study that assessed 14 candidate barriers, and only Noise Barriers 10 and 11 cleared the agency's criteria. The earmark was sought by state Rep. Sharon MacDonell and Sen. Michael Webber.

Timeline

  1. 2024: State budget includes the $10 million earmark for the sound walls.

  2. April 2026: Construction of the sound walls begins.

  3. Fall 2027: Construction is expected to wrap up.

Market Landscape

The walls follow the I-75 Modernization Project, whose roadway changes residents tied to higher noise levels. Their funding comes through a legislative earmark rather than the ongoing MDOT noise wall repair budget of $1 million per year.

Contractors and suppliers pursuing public highway work in the Troy area should note the scale and timeline of this MDOT project. Businesses near I-75 may see construction activity through roughly 2027, which can affect access and delivery routes.

The takeaway

Construction on the Troy sound walls runs through fall 2027, so businesses with routes or operations near I-75 should plan around ongoing work. Contractors can monitor MDOT's project schedule for bidding and subcontracting opportunities tied to the remaining phases.

What happens next

Construction on the sound walls is expected to wrap up in fall 2027, when the completed barriers will be in place along I-75.

Further reading

For more on the highway projects reshaping the area, see Construction coverage in Troy.

Source note: This article includes information reported by The Detroit News.

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Do you support state spending to build sound walls along highways near homes?