Seasonal Loads


Under the Highway Traffic Act, the province enforces reduced load restrictions on trucks to protect Ontario's highways during spring thaw, when road damage is most likely to occur.

Note: The Raw Forest products freeze up period is no longer in effect, for any areas.

Last Updated: June 24, 2019


Restriction on permits

All annual and project overweight permits are not valid on any highways unless otherwise specified on the permit during:

  • March and April in Southern Ontario

  • March, April and May in Northern Ontario

For purposes of this restriction, the province is divided, west to east, by:

  • a line formed by the Severn River to Regional Rd. 169

  • Regional Rd. 169 from Washago to Hwy. 12

  • Hwy. 12, from Regional Rd. 169 to Hwy. 7, north of Sunderland

  • Hwy. 7, from Hwy. 12 to Regional Rd. 7B at Carleton Place

  • Regional Rd. 7B to Hwy. 15

  • Regional Rd. 29 to Arnprior

Single trip permits, for moving of overloads on highways not designated in Schedules 1, 2 and 3, may be issued, but are subject to axle controls established by the Ministry of Transportation.


Reduced Loads

Schedule 1

Pursuant to the Highway Traffic Act, the ministry will impose reduced load limits for those designated parts of the King's Highways listed in Schedule 1, when appropriate, between March 1, 2019 to April 30, 2019.

None at this time.

Schedule 2

Pursuant to the Highway Traffic Act, the ministry will impose reduced load limits for those designated parts of the King's Highways listed in Schedule 2, when appropriate, between March 1, 2019 to May 31, 2019.

When signs are posted, the following Highways will have a Reduced Load Limit for their ENTIRE length:

None at this time.


Schedule 3

Pursuant to the Highway Traffic Act, the ministry will impose reduced load limits for those designated parts of the King's Highways/Roads listed in Schedule 3, when appropriate, between March 1, 2019 to June 30, 2019.

When signs are posted, the Highway/Roads within the following Territories will have a Reduced Load Limit:

None at this time.


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