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Weight Restriction Season

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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 2023 weight restriction for roads under the jurisdiction of the Region of Durham will be in effect on Wednesday, March 1, 2023 and tentatively end on Sunday, April 30, 2023. Signs will be erected on all Regional roads where weight restrictions are in effect - refer to the Weight Restriction map for detailed locations.

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 RoadFromTo
NameRegional Road #NameRegional Road #NameRegional 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

Concession 7

1

Regional Highway 47

147

Dallas Street

 

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

 

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)

 

Liberty Street South

14

Duke Street

 

Ontario Street

 

Ritson Road

16

Wentworth Street East

60

Oshawa Transfer Station Entrance

 

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

44

Kingston Road (Regional Highway 2) 

102

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

 

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