Event rules
Check Detroit’s service level
Use the official plan to understand which roads are included at the current snowfall depth.
Open Detroit snow managementDetroit, MI winter guide
Detroit snow plow and parking guide.
Detroit changes its response with snowfall depth. Major roads are treated in smaller events, while city contractors are dispatched to residential streets when accumulation reaches about six inches.
Reviewed September 1, 2026City of Detroit Department of Public Works
LEVEL 1Up to 3 inches
LEVEL 23–6 inches
LEVEL 36+ inches
Start with the official answer
Three useful ways to check Detroit
These links go directly to the city tools residents need during a storm.
Parking
Watch signed emergency routes
Red-and-white snow-emergency routes can be posted in advance and vehicles may be ticketed or towed.
Read emergency-route rulesResident request
Use Improve Detroit
Report an eligible city-maintained street after the correct service level and route phase.
Open Detroit service guidanceHow the response unfolds
What happens before your street is finished
Detroit follows a local sequence. Knowing the phase explains why one road can be clear while another is still waiting.
- 1Level 1
Salt major thoroughfares
For events up to three inches, the city focuses on salting the major-road network and keeping it passable.
- 2Level 2
Plow and salt major roads
At three to six inches, the city plows higher-priority thoroughfares first and expands through the major network.
- 3Level 3
Dispatch residential contractors
At six inches or more, district contractors plow residential streets while city crews maintain the major routes.
Before leaving the car
Detroit parking rules that matter
- Red-and-white signs identify snow-emergency routes.
- The city can post an emergency route restriction up to 48 hours before it begins.
- Vehicles left on an active signed route can be ticketed and towed, so use off-street parking when instructed.
Resident checklist
What to do during the storm
- 1
Check the official snowfall service level before expecting residential plowing.
- 2
Move vehicles off signed emergency routes and, during large events, off residential streets when requested.
- 3
Clear the adjoining sidewalk and keep shoveled snow out of the travel lane.
- 4
Identify whether the road belongs to Detroit, Wayne County, or the state before filing a request.
Service boundaries
Who clears what in Detroit
The city plow department is not responsible for every road, sidewalk, driveway, alley, or parking area.
Detroit DPW
Maintains 673 miles of major roads and manages the city snow and ice response.
Residential contractors
District contractors are dispatched for the city’s 1,884 miles of residential streets during Level 3 events.
State, county, and private owners
State trunklines, county roads, freeways, sidewalks, driveways, and private property have separate responsibility.
If the street looks missed
Residential plowing starts at the largest level
Do not treat a residential street as missed during a Level 1 or Level 2 event, because the city’s residential contractor response begins at Level 3.
- 1Confirm the snowfall service level.
- 2Confirm Detroit maintains the road.
- 3Use Improve Detroit or call DPW after the applicable service window.
Local questions answered
Detroit snow plow FAQ
Short answers for the questions residents usually have during an active storm.
When are Detroit residential streets plowed?
The city dispatches district contractors for residential streets during Level 3 events, generally when snow reaches six inches or more.
Who plows the freeways?
Wayne County and state agencies handle designated county roads, freeways, and state trunklines; Detroit DPW handles city major roads.
How long can major-road work take?
In a Level 2 event, the highest-priority routes are targeted first, while the full major-road and bike-lane network can require 48 to 72 hours depending on conditions.
Verify the answer
Official Detroit sources
Storm conditions and emergency rules change. These are the public-agency pages used for this guide.
More official guides