Michigan permit limits

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[0].name

Spring weight restrictions

[0].description

During spring thaw, reduced weight limits are in effect for seasonal routes. Overweight permits are not issued for any MDOT jurisdiction routes, and permits for vehicles or loads exceeding 14 feet in width are not issued to protect shoulder…

[0].region summary

Seasonal routes on MDOT jurisdiction infrastructure (shown on MDOT Truck Operators' Map)

[0].verbatim snippet

during the period of weight restriction... reduced weight limits are in effect for seasonal routes... overweight permits are not issued for any MDOT jurisdiction routes... permits for vehicles or loads exceeding 14 feet in width are not iss…

[0].weight reduction pct

25

[0].chain required

No

[1].name

Seasonal Load Limitations - Flexible Pavement

[1].description

When restricted loadings are in effect, the normal maximum axle weights allowable on flexible pavements shall be reduced 35% and the maximum wheel load shall not exceed 450 pounds per inch width of tire. Speed limit 35 MPH. No overweight pe…

[1].weight reduction pct

35

[1].chain required

No

[1].verbatim snippet

When restricted loadings are in effect, the normal maximum axle weights allowable on flexible pavements shall be reduced 35% and the maximum wheel load shall not exceed 450 pounds per inch width of tire.

[1].region summary

Statewide on flexible pavement routes

[Spring-weight-restrictions].name

Spring weight restrictions

[Spring-weight-restrictions].description

During the spring thaw, reduced weight limits are in effect for seasonal routes; overweight permits are not issued for any MDOT jurisdiction routes; permits for vehicles or loads exceeding 14 feet in width are not issued.

[Spring-weight-restrictions].region summary

Seasonal routes shown on the MDOT Truck Operators' Map; statewide MDOT jurisdiction routes

[Spring-weight-restrictions].verbatim snippet

During the spring thaw, a soft layer below the pavement and above the frost line can create weakness in the pavement... reduced weight limits are in effect for seasonal routes... overweight permits are not issued for any MDOT jurisdiction r…

[Seasonal-Load-Limitations-Rigid-Pavement].name

Seasonal Load Limitations - Rigid Pavement

[Seasonal-Load-Limitations-Rigid-Pavement].description

When restricted loadings are in effect, the normal maximum axle weights allowable on rigid pavements shall be reduced 25% and the maximum wheel load shall not exceed 525 pounds per inch width of tire. Speed limit 35 MPH.

[Seasonal-Load-Limitations-Rigid-Pavement].weight reduction pct

25

[Seasonal-Load-Limitations-Rigid-Pavement].verbatim snippet

When restricted loadings are in effect, the normal maximum axle weights allowable on rigid pavements shall be reduced 25% and the maximum wheel load shall not exceed 525 pounds per inch width of tire.

[Seasonal-Load-Limitations-Flexible-Pavement].name

Seasonal Load Limitations - Flexible Pavement

[Seasonal-Load-Limitations-Flexible-Pavement].description

When restricted loadings are in effect, the normal maximum axle weights allowable on flexible pavements shall be reduced 35% and the maximum wheel load shall not exceed 450 pounds per inch width of tire. Speed limit 35 MPH.

[Seasonal-Load-Limitations-Flexible-Pavement].weight reduction pct

35

[Seasonal-Load-Limitations-Flexible-Pavement].verbatim snippet

When restricted loadings are in effect, the normal maximum axle weights allowable on flexible pavements shall be reduced 35% and the maximum wheel load shall not exceed 450 pounds per inch width of tire.

state specific.access flexible route single axle lb

11,700

state specific.access flexible route tandem axle lb

10,400

state specific.access rigid route single axle lb

13,500

state specific.access rigid route tandem axle lb

12,000

state specific.access within miles of special designated highway

5

state specific.articulated bus max length ft

65

state specific.authority

Act 300 of the Public Acts of 1949, the Michigan Vehicle Code (MVC).

state specific.auto transport front overhang ft

4

state specific.auto transport max length ft

65

state specific.auto transport rear overhang ft

6

state specific.auto transporter front overhang ft

4

state specific.auto transporter max length ft

65

state specific.auto transporter rear overhang ft

6

state specific.axle limitation

A combination of vehicles shall not exceed 11 axles.

state specific.axle loading note

Maximum axle loadings depend on the size of the tires on the axle (see Maximum Axle Loading in Relation to Tire Size).

state specific.axle loading.description

Maximum axle loadings depend on the size of the tires on the axle.

state specific.axle loading.verbatim snippet

Maximum axle loadings depend on the size of the tires on the axle.

state specific.axle loadings

Maximum axle loadings depend on the size of the tires on the axle (see Maximum Axle Loading in Relation to Tire Size).

state specific.axle weight note

Maximum axle loadings depend on the size of the tires on the axle.

state specific.axle weights normal.spacing 3 5 to 9ft lb

13,000

state specific.axle weights normal.spacing 9ft or over lb

18,000

state specific.axle weights normal.spacing 9ft or over under 80k lb

20,000

state specific.axle weights normal.spacing less than 3 5ft lb

9,000

state specific.axle weights normal.tandem axle assembly lb per axle

16,000

state specific.axle weights normal.tandem total lb

34,000

state specific.axle weights seasonal flexible.spacing 3 5 to 9ft lb

8,450

state specific.axle weights seasonal flexible.spacing 9ft or over lb

11,700

state specific.axle weights seasonal flexible.spacing less than 3 5ft lb

5,850

state specific.axle weights seasonal flexible.tandem axle assembly lb per axle

10,400

state specific.axle weights seasonal rigid.spacing 3 5 to 9ft lb

9,750

+ 336 more (see PDF source)