Weight restriction season happens in the spring. The Regional Municipality of Durham and local municipalities restrict the operation of motor vehicles on designated roads. This affects vehicles that are heavier than 5,000 kilograms or five tonnes per axle. Weight restrictions are enacted under the authority of the Highway Traffic Act and Regional By-law 26-2018.
View the Weight Restriction map
Preventing road damage
We need weight restrictions to prevent damage to Regional roads.
In the spring, frozen roads start to thaw. The thawing water may not drain out of the gravel that is under the pavement. This is because the surrounding soil may be frozen or too solid. The water will soak into the gravel. When the water is absorbed, the pavement will temporarily lose strength. When this happens, the pavement cannot support vehicles that are heavier than 5,000 kilograms or five tonnes per axle.
Start and end dates
The 2025 weight restriction season for roads under the jurisdiction of the Region of Durham will end at 12:01 a.m. on Thursday May 1st.
Signs will remain erected on all Regional roads where year round weight restrictions are in effect. Refer to the Weight Restriction map for detailed locations.
Please note that weight restrictions for local area municipality roads may differ from Durham Region. Please contact your local area municipality for details on their weight restrictions.
Weight Restriction Season enforcement
Durham Regional Police Service and the Ministry of Transportation Ontario monitor vehicles to enforce weight restrictions. Most public utility and emergency vehicles are exempt. Other vehicles may also be exempted through a request made in writing to the Region. You need to tell us your route and the reason for needing an exemption. These vehicles include:
- Liquid or gas heating fuel
- Livestock feed
- Poultry or milk
- Vehicles operating on behalf of a municipality
If you have any questions regarding the weight restriction season or wish to apply for an exemption, please email weightrestrictions@durham.ca
The following roads are exempt from weight restrictions:
| Regional roads exempt from weight restrictions |
Regional roads exempt from weight restrictions
| Regional Road | From | To |
|---|
| Name | Regional Road # | Name | Regional Road # | Name | Regional Road # |
|---|
|
Regional Highway 2
|
102
|
North Street / Baldwin Street
|
|
Haines Street (Clarington)
|
|
|
Regional Highway 2
|
102
|
Bowmanville Avenue
|
57 |
Townline Road (Clarington)
|
55 |
|
Regional Highway 2
|
102
|
Durham/Northumberland Line
|
|
290m West of Arthur Street
|
|
|
Kingston Road/ Dundas Street West (Regional Highway 2)
|
102
|
Fothergill Court
|
|
Toronto Durham Line
|
|
|
Brock Street/Baldwin Street (Regional Highway 12)
|
112
|
Rossland Road
|
28
|
Highway 7/12
|
|
|
Regional Highway 47/Toronto Street/Brock Street
|
147
|
Highway 7/12
|
|
Fourth Avenue
|
|
|
Regional Highway 47/ Toronto Street/ Brock Street (RHwy 47)
|
147
|
Marietta Street/First Avenue
|
|
York Durham Line
|
30 |
|
Regional Highway 48
|
148
|
Durham/Kawartha Lakes Line
|
|
Highway 7/12
|
|
|
Brock Road
|
1
|
Montgomery Park Road
|
|
Highway 7
|
|
|
Brock Road
|
1
|
Giordano Pit entrance (South of Regional Road 21)
|
|
Regional Highway 47
|
147
|
|
Main Street North
|
1
|
Regional Highway 47
|
147 |
Dallas Street
|
|
|
Main Street South
|
1
|
Regional Highway 47
|
147 |
Reach Street
|
8 |
|
Simcoe Street
|
2
|
Harbour Road
|
|
Highway 407
|
|
|
Simcoe Street
|
2
|
740 m south of Scugog Line 4
|
|
Reach Street
|
8
|
|
Centre Street
|
2A
|
Simcoe Street South
|
2
|
Simcoe Street North
|
2
|
|
Taunton Road
|
4
|
Townline Road
|
55
|
York/Durham Line
|
30
|
|
Reach Street
|
8
|
Simoce Street
|
2 |
Highway 12
|
|
|
Reach Street
|
8
|
Main Street
|
1 |
200m East of Testa Road
|
|
|
Brock Street
|
8
|
Regional Highway 47
|
147 |
291 Brock Street (Arena's entrance)
|
|
|
Cameron Street
|
12
|
Adelaide Street
|
|
Highway 12
|
|
|
Third Concession Road
|
13
|
Highway 12
|
|
CBM Pit entrance (west of Highway 12)
|
|
|
Mill Street
|
17
|
Highway 401
|
|
King Street (Regional Highway 2)
|
102
|
|
Newtonville Road
|
18
|
Highway 401
|
|
Regional Highway 2 |
102 |
|
Mosport Road
|
20
|
Highway 35
|
|
Bowmanville Avenue |
57 |
|
Goodwood Road
|
21
|
Highway 7/12
|
|
Regional Highway 47
|
147
|
|
Bayly Street/ Bloor Street/Victoria Street
|
22
|
Grandview Street South
|
|
Whites Road
|
38 |
|
Lake Ridge Road
|
23
|
Bayly Street/Victoria Street
|
22
|
Kingston Road/Dundas Street (Regional Highway 2)
|
102
|
|
Lake Ridge Road
|
23
|
Taunton Road
|
4
|
Highway 407
|
|
|
Lake Ridge Road
|
23
|
Sideroad 17
|
|
Park Avenue (Beaverton)
|
|
|
Lake Ridge Road
|
23
|
2 kilometres south of Goodwood Road
|
21
|
Regional Highway 47
|
147
|
|
Consumers Drive/Champlain Avenue
|
25A
|
Stevenson Road South
|
53
|
Brock Street
|
|
|
Stellar Drive
|
25
|
Thornton Road
|
52
|
Consumers Drive/Champlain Avenue
|
25A |
|
Thickson Road
|
26
|
Wentworth Street
|
60
|
Highway 407
|
|
|
Rossland Road
|
28
|
Harmony Road North
|
33
|
Brock Street (Regional Highway 12)
|
112
|
|
Liverpool Road
|
29
|
Bayly Street
|
22
|
Kingston Road (Regional Highway 2)
|
102
|
|
York-Durham Line
|
30
|
Regional Highway 47
|
147
|
Lafarge entrance, (north of Regional Highway 47)
|
|
|
York-Durham Line
|
30
|
Wagg Road
|
|
Aurora Road
|
York Regional Road 15 |
|
Westney Road
|
31
|
Harwood Avenue
|
|
Taunton Road
|
4
|
|
Harmony Road
|
33
|
Bloor Street East
|
22
|
Conlin Road East
|
|
|
Courtice Road
|
34
|
Highway 401
|
|
Baseline Road
|
|
|
Wilson Road
|
35
|
Bloor Street East
|
22
|
Taunton Road East
|
4
|
|
Anderson Street/ Hopkins Street
|
36
|
Consumers Drive
|
25 |
Rossland Road
|
28
|
|
Whites Road
|
38
|
Oklahoma Drive
|
|
Kingston Road (Regional Highway 2)
|
102
|
|
Salem Road
|
41
|
Bayly Street
|
22
|
Taunton Road West
|
4
|
|
Brock Street South
|
46
|
Victoria Street
|
22 |
Highway 401
|
|
|
Thornton Road
|
52
|
Champlain Avenue
|
25A
|
Taunton Road
|
4
|
|
Boundary Road
|
52
|
Phillip Murray Avenue
|
|
Wentworth Street
|
60
|
|
Phillip Murray Avenue
|
52
|
Park Road South
|
54
|
Stevenson Road South
|
53
|
|
Stevenson Road
|
53
|
Phillip Murray Avenue
|
52
|
Rossland Road West
|
28
|
|
Park Road
|
54
|
Phillip Murray Avenue
|
52
|
Rossland Road West
|
28
|
|
Townline Road
|
55
|
King Street (Regional Highway 2)
|
102
|
Adelaide Avenue
|
58
|
|
Farewell Street
|
56
|
Harbour Road
|
|
Bloor Street East
|
22
|
|
Bowmanville Avenue
|
57
|
Highway 407
|
|
Mosport Road
|
20
|
|
Adelaide Avenue
|
58
|
Townline Road North
|
55
|
Thornton Road North
|
52
|
|
Gibb Street
|
59
|
Simcoe Street South
|
2
|
Thornton Road South
|
52
|
|
Olive Avenue
|
59
|
Harmony Road South
|
33
|
Simcoe Street South
|
2
|
|
Wentworth Street
|
60
|
Farewell Street
|
56
|
Park Road South
|
54
|
|
Wentworth Street
|
60
|
Stevenson Road South
|
53
|
Thickson Road South
|
26
|
|
