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"The Monroe County Road Commission vows to provide quality, courteous and dependable professional services through innovative, cost-effective ways to maintain our road system through transparency, trust and collaboration between citizens, business and government."

Road Closures and Restrictions

Public Notice

Beginning Monday, March 1, 2021 at 7:00 a.m. Seasonal Weight and Speed Restrictions will go into effect on Monroe County Road Commission jurisdiction roads pursuant to Public Act 300 of 1949 of the Michigan Vehicle Code.


During the time of Seasonal Weight and Speed Restrictions on seasonally restricted roads, also referred to Normal Loading roads, the maximum allowable legal axle loads per the Michigan Vehicle Code are reduced by 35 percent and the maximum wheel load shall not exceed 450 pounds per inch of tire width. For vehicles over 10,000 pounds operated on seasonally restricted roads the maximum allowable vehicle speed shall be 35 mph for all roads with posted or prima facie speeds greater than 35 mph.


Travel on roads designated as All Season routes are not subject the reduced weight and speed limit requirements. When Seasonal Weight Restrictions are in effect no transportation permits will be issued for overweight vehicles on All Season routes.


When Seasonal Weight and Speed Restrictions are in effect only special seasonal transportation permits will be issued, per the Michigan Vehicle Code, for certain cases of agricultural, public utility , and emergency needs.


Most roads in Monroe County are seasonally restricted.


List of Seasonally Restricted Roads

List of All Season Roads

Additional Information:

Michigan Department of Transportation Weight Restriction Bulletins

County Road Association Seasonal Weight Restrictions

Why Michigan Needs Spring Weight Restrictions

The Monroe County Road Commission has put together a map showing various information regarding closed structures, weight restricted Roads and structures used in the trucking industry.

The information shown on this map is subject to change by the Monroe County Road Commission. Certain portions of roads or structures may have restrictions other than provided on this map. These roads and structures will be physically posted at their appropriate location.

The restrictions, limitations and exceptions presented by this map do not relieve the truck operator's responsibility of complying with applicable State and Federal laws and local ordinances and permit requirements within the villages, cities, and townships of Monroe County.

  • National Truck Network in Monroe County, Michigan

The Federal Highway Administration, U.S. Department of Transportation, issued regulation 23 CFR 658.19 requiring states to allow reasonable truck access within one (1) mile of the National Truck Network, the Monroe County Road Commission intends to protect, maintain and improve roads in the County of Monroe, Michigan and has developed a truck operators map to accommodate commercial traffic along County roads, to be enforced by township truck route ordinances. A resolution was passed in order to accomplish this and can be found here.

Miscellaneous Closures


TOWNSHIP: LaSalle/Monroe Township
ROAD NAME & LIMITS: S. Laplaisance Road, South Dixie Highway (M125) to Knab Road
EMERGENCY CLOSURE – Canadian National Railroad has contacted the Monroe County Road Commission stating that they are closing their tracks on S. Laplaisance Road near Knab Road due to a bad rail; no thru traffic allowed between M125 and Knab Road. Work to fix this bad rail will start Friday, February 5, 2021 and continue until Tuesday, February 9, 2021, weather permitting. Detour traffic to use Laplaisance Road north to Mortar Creek Road west to Hull Road north to Albain Road west to M125.

  • LaPlaisance Road bridge over I-75 Closure

TOWNSHIP: Monroe Township
ROAD NAME & LIMITS: LaPlaisance Road bridge over I-75

CLOSURE DETAILS:The Michigan Department of Transportation (MDOT) will perform an in-depth inspection and load rating on the LaPlaisance Road bridge over I-75 in Monroe.

Project Map