Michigan Sovereign Immunity & Government Tort Liability: Potholes, Sidewalk Defects & 120-Day Notice
A legal guide to suing Michigan government agencies: Navigating the Governmental Tort Liability Act (GTLA), the highway exception for potholes, municipal vehicle crashes, and strict 120-day notice rules.
Driving across Michigan after a brutal freeze-thaw winter is an endurance test for any motorist. Craters, tire-shredding potholes on Interstate 94, buckled concrete on Lodge Freeway, and cracked city sidewalks leave thousands of residents every year with bent aluminum rims, blown tires, and severe personal injuries.
The immediate reaction of most citizens is to demand compensation: “The city or the state failed to fix this road, so they must pay for my vehicle repairs.”
However, in Michigan, seeking compensation from the government is governed by ancient common law doctrine fortified by modern statutory shield: Sovereign Immunity.
Under the Governmental Tort Liability Act (GTLA — Public Act 170 of 1964 / MCL 691.1401 et seq.), government agencies are broadly immune from tort liability whenever they are engaged in the exercise or discharge of a “governmental function.”
Winning a claim against the Michigan Department of Transportation (MDOT), the Wayne County Department of Public Services, or the City of Detroit requires fitting your case into one of six narrow statutory exceptions and surviving unforgiving notice deadlines.
This legal guide breaks down the GTLA exceptions, explains the strict 120-day notice requirement, and outlines how to pursue pothole and municipal vehicle damage claims in 2026.
Bottom Line Up Front (BLUF): Michigan Governmental Immunity
• General Statutory Rule: Government agencies enjoy broad sovereign immunity under MCL 691.1407.
• Fatal Notice Deadline: You must serve formal written notice within 120 calendar days of the injury under MCL 691.1404.
• The Notice Requirement: Road agencies are only liable for potholes if they had actual knowledge or the defect existed for at least 30 days.
• Six Legal Exceptions: Highway repair, motor vehicle operation, public buildings, proprietary functions, state hospitals, and sewer backups.
• Proper Forum: Claims against the state must be filed in the Michigan Court of Claims; claims against cities/counties are filed in Circuit Court.
1. The Six Statutory Exceptions to Governmental Immunity
Under Michigan jurisprudence, unless a claim falls squarely within one of these six statutory exceptions codified in the GTLA, the lawsuit is dismissed with prejudice:
┌────────────────────────────────────────────────────────────────────────┐
│ THE 6 GTLA EXCEPTIONS TO GOVERNMENTAL IMMUNITY │
├─────────────────────────────────────┬──────────────────────────────────┤
│ 1. Highway Exception (MCL 691.1402) │ Defective public roads, bridges, │
│ │ and crosswalks open to travel. │
├─────────────────────────────────────┼──────────────────────────────────┤
│ 2. Motor Vehicle (MCL 691.1405) │ Negligent driving of police cars,│
│ │ municipal buses, or snowplows. │
├─────────────────────────────────────┼──────────────────────────────────┤
│ 3. Public Building (MCL 691.1406) │ Physical structural defects in │
│ │ courthouses, schools, or jails. │
├─────────────────────────────────────┼──────────────────────────────────┤
│ 4. Sewage Disposal (MCL 691.1416) │ Municipal sewer overflows and │
│ │ basement stormwater backups. │
├─────────────────────────────────────┼──────────────────────────────────┤
│ 5. Proprietary Function (§ 691.1413)│ Operations conducted primarily │
│ │ for commercial profit. │
├─────────────────────────────────────┼──────────────────────────────────┤
│ 6. Medical Malpractice (§ 691.1407) │ Clinical negligence in public │
│ │ psychiatric or county hospitals. │
└─────────────────────────────────────┴──────────────────────────────────┘
2. The Highway Exception & The Pothole Defense Trap
The most common claim arises under MCL 691.1402 (The Highway Exception), which mandates that road agencies maintain highways in “reasonable repair so that it is reasonably safe and convenient for public travel.”
However, recovering compensation for pothole damage requires overcoming an extraordinary legal burden:
The 30-Day “Notice of Defect” Rule
Under Section 691.1403, a governmental agency cannot be held liable unless: 1. The agency knew of the defect (actual notice, such as prior citizen complaints filed with the DPW); OR 2. The agency, in the exercise of reasonable diligence, should have known of the defect (constructive notice). 3. The Statutory Conclusive Presumption: If the road defect was readily visible for 30 calendar days or more before the injury occurred, the law presumes the agency had notice. 4. The Catch-22: If a pothole formed during a freeze-thaw cycle three days before your tire blew out, the road agency is 100% immune from liability, because the defect did not exist long enough for the city or state to have reasonable opportunity to repair it.
3. The Deadly 120-Day Notice Trap (MCL 691.1404)
In ordinary civil litigation against private drivers or corporations, Michigan’s statute of limitations for personal injury is three years.
Not so when suing the government.
Under Section 691.1404 of the GTLA: * You must serve a formal, written Notice of Injury and Defect on the designated clerk or legal department of the governmental agency within strictly 120 calendar days of the date the injury occurred. * Mandatory Contents: The notice must explicitly state: 1. The exact physical location and nature of the defect (precise street address, GPS coordinates, cross streets, and depth). 2. The exact injuries sustained and vehicle damage incurred. 3. The names and contact information of all known witnesses. * Jurisdictional Bar: In Rowland v. Washtenaw County Road Commission, the Michigan Supreme Court established that failing to serve this notice within 120 days is an absolute jurisdictional bar. The judge must dismiss the lawsuit, even if the government knew about the incident.
4. Municipal Motor Vehicle Crashes (MCL 691.1405)
When a city garbage truck, police cruiser, Detroit Department of Transportation (DDOT) bus, or municipal snowplow collides with a civilian vehicle, sovereign immunity is lifted under MCL 691.1405.
- Standard of Care: The governmental entity is liable for bodily injury and property damage resulting from the negligent operation of the motor vehicle by an employee.
- Police Chases & Emergency Vehicles: Under Michigan law (MCL 257.603), emergency vehicles operating with sirens and flashing lights are granted privileges to exceed speed limits and pass through stop signs, but drivers must exercise “due regard for the safety of all persons.” If a police pursuit constitutes gross negligence or reckless indifference, immunity is stripped.
5. Filing Protocol: Step-by-Step
[Incident Occurs (Pothole Crash, Sidewalk Fall, or Bus Collision)]
│
▼
[Document Scene: Photographs, Measurements, Witness Info & Police Report]
│
▼
[Identify Jurisdiction: MDOT (State) vs. County Road Commission vs. City DPW]
│
▼
[Serve Formal Written GTLA Notice via Certified Mail within 120 Days]
│
▼
[File Lawsuit: Court of Claims (State) OR County Circuit Court (Municipality)]
Jurisdiction Guide
- State Trunklines (I-94, I-75, US-12, M-10, M-1 Woodward): Maintained by MDOT. Damage claims up to $1,000 use MDOT Form 3600; larger claims go to the Michigan Court of Claims.
- County Roads: Maintained by county road commissions (e.g., Wayne County Department of Public Services, Road Commission for Oakland County).
- Local Residential Streets: Maintained by the local municipal Department of Public Works (e.g., City of Detroit DPW).
Frequently Asked Questions (FAQ)
Can you sue the State of Michigan or a city for pothole damage?
Under the Michigan Governmental Tort Liability Act (MCL 691.1402), you can sue road agencies (MDOT, county road commissions, or cities) under the ‘highway exception’ to governmental immunity. However, recovery requires proving the road agency had actual or constructive notice of the defect and a reasonable time (at least 30 days) to repair it before the incident occurred.
What is the 120-day notice requirement in Michigan government tort claims?
Under MCL 691.1404, an injured party must serve a formal written notice of claim upon the governmental agency within strictly 120 calendar days of the injury. The notice must specify the exact location and nature of the defect, the injury sustained, and names of known witnesses. Failing to serve this notice within 120 days permanently bars your lawsuit.
Where do you file a lawsuit against the State of Michigan?
All lawsuits seeking monetary damages against the State of Michigan, state departments (such as MDOT or Michigan State Police), or state universities must be filed in the Michigan Court of Claims (MCL 600.6401). Lawsuits against local municipalities, cities, or counties are filed in the local County Circuit Court.
What are the six statutory exceptions to governmental immunity in Michigan?
Michigan recognizes six narrow exceptions to immunity: (1) The Highway Exception (defective roads/bridges); (2) The Motor Vehicle Exception (negligent operation of government vehicles); (3) The Public Building Exception (dangerous conditions in public buildings); (4) The Proprietary Function Exception (commercial activities run for profit); (5) The Medical Malpractice / Hospital Exception; and (6) The Sewage Disposal System Event Exception (basement sewer backups).
How do you file a property damage claim for a pothole with MDOT?
For vehicle damage claims under $1,000 occurring on state trunklines (I, US, or M routes), drivers submit MDOT Form 3600 (Damage Claim) to the regional MDOT office along with repair estimates and photos. Claims exceeding $1,000 must be filed with the Michigan Court of Claims.
Archival & Citation Notice
This research analysis is published under the academic and civic archive of Detroit Focus. For academic referencing or press reproduction, please cite as: "Michigan Sovereign Immunity & Government Tort Liability: Potholes, Sidewalk Defects & 120-Day Notice", Detroit Focus Urban Review (December 15, 2026).