Concrete sidewalk replacement in Troy, MI covers two kinds of work: private walks on your property, which do not need a city permit, and public sidewalks and driveway approaches in the right-of-way, which need a Troy Sidewalk and Approach Permit and an inspection before the pour unless the area is under 50 square feet. Public walks are 4 inches thick and 6 inches where a driveway crosses, and approaches are 6 inches. We handle both kinds, including flags the city has marked in green. Call (248) 453-1088 to talk through a notice or a new walk.
Green marks, orange marks and city notices
Troy inspects public sidewalks and marks damaged flags. According to the City of Troy sidewalk program, flags marked in orange are the city's responsibility, while flags marked in green are the owner's responsibility. If your notice lists green-marked flags, you can hire your own contractor to replace them before the city's contractor reaches your street. The city also allows leveling of flags that are sunken but not cracked or spalled.
When we quote green-marked flags, we include the permit, the 4-inch or 6-inch pour as required, and restoration of the lawn edge. If your driveway approach is also tired, replacing both at once is usually the most efficient approach, since the permit and inspection cover the same visit.
The Troy Sidewalk and Approach Permit
Chapter 34 of the Troy city code governs sidewalks and driveway approaches. In practice:
- Work on the public sidewalk or approach requires a Sidewalk and Approach Permit from Troy Engineering, applied for through the city's online system.
- Jobs under 50 square feet are exempt from the permit, but still must meet city standards.
- Forms and base are inspected before concrete goes in. Unpermitted work can be ordered removed.
- The contractor files a certificate of insurance that lists the City of Troy, as the permit application requires.
- Public sidewalks are 4 inches thick, increased to 6 inches across driveways. Approaches are 6 inches.
Our full guide to the Troy sidewalk and approach permit covers the process step by step. Troy Engineering can be reached at 248-524-3383 with questions about a specific notice.
Private front walks and side paths
Your front walk is the first thing visitors notice. Many Troy homes still have the original narrow walk from the builder, often sunk at the steps or tipped toward the house. We replace walks with a wider layout, gentle curves where the yard allows, and a broom finish for winter traction. A stamped or colored border can tie the walk to a decorative patio or entry.
Side-yard paths to the backyard, trash pad areas and walks to a detached garage are quick wins that get you off muddy grass. They are typically 4 inches thick over a compacted base, with control joints every 4 to 5 feet on a narrow walk.
When a walk meets the steps or porch, we set the top of the walk so the first riser matches the rest, which avoids the short or tall step that causes trips.
Accessibility and safe slopes
A good walk is easy to use for everyone, including visitors with strollers, walkers or wheelchairs. Where the yard allows, we keep running slopes gentle and avoid single steps that catch people off guard. Cross slope is kept modest so water drains without making the walk feel tilted. If a step is unavoidable, we make the riser consistent with the rest of the entry and add a contrasting edge where it helps visibility at night.
Approaches and the driveway connection
The approach takes more abuse than any other slab on your property: snowplow blades, delivery trucks, salt spray and water from the gutter line. That is why cities require a thicker 6-inch section. We often replace the approach together with a concrete driveway so the joint between them is clean and the elevations match.
Leveling instead of replacing
A sidewalk flag that has settled in one piece, without cracks or spalling, can sometimes be raised instead of replaced. That costs less and the city allows it in those conditions. Broken or flaking flags must be replaced. See concrete repair and leveling for how we decide.
Walks we replace around Troy
Sidewalk work clusters in older parts of town. Near Troy Historic Village and the civic center on Big Beaver, many walks date to the original subdivisions and have been heaved by street trees. Around the Troy Public Library and the neighborhoods off Livernois, we see a mix of green-marked public flags and private front walks that owners want to replace at the same time.
We also replace public walks in nearby cities with their own programs. Royal Oak runs a sidewalk improvement program and requires an engineering permit, and Madison Heights requires a concrete permit and inspections for flatwork in the right-of-way.
Common questions
Who pays for sidewalk repairs in Troy?
It depends on the mark. In Troy's sidewalk program, flags painted orange are repaired by the city, and flags painted green are the property owner's responsibility. Owners can hire their own contractor to replace green-marked flags before the city's contractor arrives, as long as the work is permitted and built to city standards.
Do I need a permit to replace a sidewalk in front of my house?
Yes, for the public sidewalk in Troy, unless the work is under 50 square feet. The Sidewalk and Approach Permit is issued by Troy Engineering, and the forms and base are inspected before the pour. Private walks on your own lot, such as the walk from the driveway to the front door, do not need that permit.
How thick is a Troy public sidewalk?
Troy public sidewalks are 4 inches thick, increased to 6 inches where a driveway crosses the walk. Driveway approaches are 6 inches. Those dimensions are checked during the pre-pour inspection. Private walks on your property are typically 4 inches as well, over a compacted base, with control joints every 4 to 5 feet.
Can a sunken sidewalk flag be raised instead of replaced?
Often, yes. If the flag has settled in one piece and is not cracked or spalled, Troy allows leveling, and raising it costs less than replacement. If the flag is broken, crumbling or badly tipped, it needs to come out. We check each flag and quote the cheaper option where the city allows it.