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Saskatchewan Frost Laws

2020 Saskatchewan frost laws, seasonal load weight and speed restrictions.

The winter/spring season frost law restrictions will again be in in effect for many roadways in the Province of Saskatchewan this year according to information provided by the the provincial Ministry of Highways and Infrastructure. Typically, seasonal (spring) frost law restrictions that take effect in March.

Spring load restrictions on affected highways: The maximum load on steering axles is 10 kg per millimeter (560 lbs. per inch) width of tire (manufacturer’s stamped dimensions), to a maximum of 3 000 kg (6,612 lbs.) on each wheel but to a maximum of 5,500 kg (12 120 lbs.) on the steering axle; except for straight trucks on primary highways which are allowed up to a maximum of 7,250 kg (15,983 lbs.) on the steering axle with the appropriate tire size.

Maximum loads on all other wheels will be limited to 6.25 kg/mm (350 lbs. per inch) width of tire to a maximum loading of 1,650 kg per wheel (3,636 lbs.)

Maximum gross axle weights and tire sizes.

Colder temperatures during the winter months help freeze and strengthen roads. As a result more weight can be transported on provincial highways without damaging the road. This is a benefit to the trucking community.

The winter weight period that allows additional weight typically runs from November 16 through March 14. However, if weather remains mild the program may be postponed because without sufficient freezing, extra weight can damage pavement and the road beneath.

Winter Weights will not apply in the southwest area of the province until December 1 and will be removed on the last day of February due to historically milder climatic conditions.

Municipal roads are the responsibility of each rural municipality, who can set out their own weight limits. Weights can be restricted at any time by Minister’s order.

Saskatchewan is a large province with considerable difference in climate in the north and the south. The new change takes into account the climatic differences in the north and the south of the province while also maintaining the original intent of providing primary weight access for economic activities. In the north of the province, the annual weight increase on the 9-month primary highways will be same as before, from July 1 to March 31 of the following year. In the south of the province, the annual weight increase on the 9-month primary highways will occur earlier, from June 15 to March 15 of the following year. This change will help to sustain road conditions in the south, where spring thaw occurs earlier.

Additional information can be obtained by contacting the inquiry line: 1-866-933-5290 in Saskatchewan or 306-933-5290 outside the province.

Source: Spring Road Restrictions: https://www.saskatchewan.ca/business/transportation-and-road-construction/information-for-truckers-and-commercial-trucking-companies/regulations-and-road-restrictions/increased-weights-and-road-restrictions

Government of Saskatchewan, winter weight restrictions and spring frost law road bans and interactive road map:

http://publications.saskatchewan.ca/api/v1/products/87911/formats/104609/download

http://hotline.gov.sk.ca/restrictions_map.html

 

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Prince Edward Island Frost Laws

2020 Prince Edward Island frost laws, seasonal load weight and speed restrictions.

Spring frost laws and weight restrictions for Island roads will begin at 12:01 a.m. on Friday, March 15, 2020.

Frost/thaw law for PEI.

For Prince Edward Island all weather roads, such as routes 1 and 2: Vehicles may carry up to their maximum allowable weight with no overweight exceptions permitted. Other roads: Vehicles may carry 75 percent of their maximum allowable weight during frost law (thaw law) season. Only the road’s posted weight limit is permitted and if the laws are not observed a fine may be levied.

It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the Prince Edward Island posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.

Seasonal weight restrictions limit the maximum weight of vehicles allowed to travel on certain roads as a way to help prevent damage and protect investment in the roadways.

Late winter and early spring driving in this province has its own set of challenges. Previously frozen roads become more vulnerable to damage as they thaw out and soften. Heavy vehicles travelling over paved roads can make it worse by causing the pavement to crack and break up.

What is frost law and why are they necessary?

When pavement thaws during the daytime and freezes at night it is potentially damaging to the road. In order to prevent this “frost laws” are implemented in order to prevent costly damages to the road.

How are roads damaged by frost thawing or the road freezing?

Water from melted ice and snow seeps into cracks in the pavement and softens the gravel underneath. When the water beneath the surface freezes again, it expands and breaks the pavement, causing potholes. If ice continues to form under the pavement from a steady supply of water, it can push the entire surface of the road upward causing the washboard like unevenness (ripple) known as “frost heaving.” These damages are permanent and costly to repair.

Why are Prince Edward Island roads more vulnerable to seasonal damage?

Prince Edward Island consists of a high concentration of silty soil which collects and holds more water beneath the roadway surfaces, making the roads more susceptible to frost heaving and potholes despite any drainage measures that have been put into place.

What are the classifications of roads under weight restrictions?

  • All-weather roads, such as routes 1 and 2: Vehicles may carry up to their maximum allowable weight – with no overweight exceptions permitted.
  • Other roads: Vehicles may carry 75 percent of their maximum allowable weight.
  • Posted weight limits: Only the road’s posted weight limit is allowed.

Contact information:

Department of Transportation, Infrastructure and Energy
3rd Floor, Jones Building
11 Kent Street,
P.O. Box 2000,
Charlottetown, PE C1A 7N8

Phone: 902-368-5100
Fax: 902-368-5395

If you have questions about the frost/thaw laws as well as any other road related inquiries send a e-mail to: roads@gov.pe.ca

Prince Edward Island Seasonal Weight Restrictions:

https://www.princeedwardisland.ca/en/information/transportation-infrastructure-and-energy/seasonal-weight-restrictions

Learn about frost laws in other Canadian provinces.

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Ontario Frost Laws

2020 Ontario frost laws, seasonal load weight and speed restrictions.

Frost - thaw laws Ontario.

Restrictions on permits during frost or thaw law months.

All annual and project heavy haul trucking permits are not valid on any highways unless otherwise specified on the permit during frost or thaw months:

  • March and April in Southern Ontario
  • March, April and May in Northern Ontario

For the purposes of this restriction the Province of Ontario 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 transporting heavy haul shipments on highways not designated in Schedules 1, 2 and 3, may be issued but are subject to axle weight controls established by the Ministry of Transportation.

Pursuant to The Highway Traffic Act, the Ontario Ministry of Transportation will impose reduced load weight limits for designated parts of the provincial highways between March 1 and April 30, for Schedule 1 and Schedule 2 roadways, and from March 1 to June 30 for Schedule 3 roadways.

Spring frost/thaw law weight maximums (restrictions) for Ontario:

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, 2020 to April 30, 2020: Verification.

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, 2020 to May 31, 2020.

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

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: Verification.

Source: http://www.mto.gov.on.ca/english/trucks/load-restrictions.shtml

It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the Ontario posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.

Seasonal weight restrictions limit the maximum weight of vehicles allowed to travel on certain roads as a way to help prevent damage and protect public investment in the roadways.

Learn about frost laws in other Canadian provinces.
Learn about shipping regulations in Ontario.

Please share your knowledge with others by commenting below:

New Brunswick frost laws

2020 New Brunswick frost laws, seasonal load weight and speed restrictions.

Spring frost law/thaw law weight restrictions.

Spring weight restrictions for truck traffic will come into effect on Monday, March 11th, in southern New Brunswick and on Monday , March 18th , in northern New Brunswick. Restrictions will continue until midnight on Sunday, May 14th, in southern New Brunswick and midnight, Sunday, May 21th, in northern New Brunswick. These dates are dependent upon weather conditions and are subject to change.

“These weight limits are put in place every spring to ensure that our road infrastructure does not suffer damage during the annual frost and thaw cycle,” said Transportation and Infrastructure Minister Bill Fraser. “We provide this notice to the trucking community so that they may prepare to reduce their loads or plan alternate routes during this period. I thank members of the industry for the co-operation and patience they demonstrate each year while these restrictions are in place.”

For the purpose of these restrictions, northern New Brunswick includes:

  • The area lying within the counties of Northumberland, Gloucester, Restigouche, Madawaska and Victoria.
  • The portion of Route 108 within York County.
  • The portion of Gordon Vale Road and Holtville Road within York County.
  • The portion of Route 123 within Sunbury County and Queens County.
  • The portion of Bloomfield Ridge Road between Holtville Road and Route 625.
  • The portion of Route 625 between Gordon Vale Road and Route 8.

Details are available online. Should weather conditions warrant, district engineers are authorized to close roads to trucks or impose weight restrictions on highways or portions of highways.

How to calculate your truck weights for spring thaw/frost transport.

Source: https://www2.gnb.ca/content/gnb/en/departments/dti/trucking/content/spring_weight_restrictions.html

Spring weight restrictions of 90% or 80% of legal axle weight are published each spring and are available at the link below.

http://www2.gnb.ca/content/dam/gnb/Departments/trans/pdf/en/Trucking/SWRListing-e.pdf

It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the New Brunswick posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.

Seasonal weight restrictions limit the maximum weight of vehicles allowed to travel on certain roads as a way to help prevent damage and protect public investment in the roadways.

Learn about frost laws in other Canadian provinces.

Please share your knowledge with others by commenting below:

Manitoba Frost Laws

2020 Manitoba frost laws, seasonal load weight and speed restrictions.

Manitoba Spring Road Restrictions (SRR) program.

The Manitoba Ministry of Infrastructure divides its province into three sections, with each section having a unique thaw restriction start and end date. In 2020, it will begin its spring road restrictions for Region A and Region B of the province at 6 a.m. on Friday, March 10. Weight restrictions are scheduled to end at 11:59 p.m. on Wednesday, May 31.

The allowable axle weights on weight restricted roads during the spring season are based on the percentages of the legal axle weights, with some exceptions for the single steer axles and in situations where essential commodities are being shipped. There are two levels of spring weight restrictions in Manitoba depending on the strength and surface conditions of the pavement structures. The Level 1 weight restriction applies to weak pavements while the Level 2 weight restriction applies to very weak pavements. The allowable axle weights on different axle configurations are calculated as follows:

Level 1 Spring Weight Restrictions:

  1. On a single steering axle of a single or tandem drive truck tractor:
    • 10 kg per millimeter width of tire up to a maximum of 5,500 kg on all highways.
  2. On a single steering axle of a straight truck or a tridem drive truck tractor:
    • Tire size 305 mm or less: 10 kg per millimeter width of tire up to a maximum of 5,500 kg on all highways.
    • Tire size greater than 305 mm: 9 kg per millimeter width of tire up to a maximum of 6,570 kg on all highways.
  3. On a tandem steering axle group of a straight truck:
    • 9 kg per mm width of tire multiplied by 0.90 (download factor) up to a maximum of 12,240 kg on RTAC Routes or Class A1 highways and up to a maximum of 9,900 kg on Class B1 highways.
  4. On all other axle groups:
    • 9 kg per millimetre width of tire up to a maximum of 90% of the legal axle group weights on all highways.

Level 2 Spring Weight Restrictions:

  1. On all single steering axles of all vehicle configurations:
    • 6.5 kg per millimeter width of tire up to a maximum of 65% of the legal axle weights on Class A1 and Class B1 highways.
  2. On a tandem steering axle of a straight truck:
    • 6.5 kg per millimeter width of tire multiplied by 0.90 (download factor) up to a maximum of 8,840 kg on Class A1 highways and up to a maximum of 7,150 kg on Class B1 highways.
  3. On all other axle groups:
    • 6.5 kg per millimeter width of tire up to a maximum of 65% of the legal axle weights on Class A1 and Class B1 highways.

Road restrictions for Region C, the northern most regions, will begin at 6 a.m. on Sunday, March 12, and end at 11:59 p.m. on Saturday, June 10. Region C is defined as the rest of the province north of the virtual line in Region B.

Spring Weight Restrictions are classified as Level 1 and Level 2 (see table below).

Example of Maximum Allowable Axle Weights. Level 1 Spring Weight Restriction, Reduce Axle Weights to 90% Maximum Allowable Weights. Level 2 Spring Weight Restriction, Reduce Axle Weights to 65% Maximum Allowable Weights. A complete list of Charts of Allowable Axle Weights can be found at the following link: http://gov.mb.ca/mit/srr/restrictions.html

Manitoba Spring Road Restrictions Program:

Source: http://www.gov.mb.ca/mit/srr/

Manitoba publishes a list of road bans as conditions change. Go to the above link and look for “Road Bans” in the left column. These bans identify specific roadways and the ban imposed in percent of rated axle capacity.

It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the Manitoba posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.

Seasonal weight restrictions limit the maximum weight of vehicles allowed to travel on certain roads as a way to help prevent damage and protect public investment in the roadways.

Learn about frost laws in other Canadian provinces.

Please share your knowledge with others by commenting below:

British Columbia Frost Laws

2020 British Columbia frost laws, seasonal load weight and speed restrictions.

2020 Seasonal Load Restrictions.

The British Columbia Ministry of Transportation and Infrastructure maintains an frequently updated database that posts frost law notices and seasonal load restrictions by region. Depending on the region weight restrictions may already be in place while others are scheduled to take place imminently.

NEW: Get on the e-mail notification list to be notified of seasonal load restriction changes for the following areas in British Columbia:

The link below includes an interactive map with links to 28 regions. Each region posts its current road conditions and any weight restrictions imposed. The current map indicates restrictions from “no weight restrictions” to “50%” of rated axle weights restrictions. It also includes access to recently updated load restrictions and road reports. British Columbia is excellent about providing up to date information about their frost laws and when they are in effect. It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.

  • South Vancouver Island.
  • Central Vancouver Island.
  • North Vancouver Island.
  • Howe Sound,
  • Sunshine Coast.
  • Lower Mainland.
  • Fraser Valley.
  • South Okanagan.
  • Kootenay Boundary.
  • Central Kootenay.
  • East Kootenay.
  • Selkirk.
  • Okanagan-Shuswap.
  • Nicola.
  • Thompson.
  • South Cariboo.
  • Central Cariboo.
  • North Cariboo.
  • Fort George.
  • Robson.
  • South Peace.
  • North Peace.
  • Nechako.
  • Lakes.
  • Bulkley Nass.
  • Skeena.
  • North Coast.
  • Stikine.

 

British Columbia:

http://www.th.gov.bc.ca/roadreports/RRMonitor.aspx

http://www.th.gov.bc.ca/bchighways/loadrestrictions/loadrestrictions.htm

Learn about frost laws in other Canadian provinces.

Please share your knowledge with others by commenting below:

 

Alberta frost law restrictions.

2020 Alberta frost laws, seasonal load weight and speed restrictions.

Just like any other Province Alberta has seasonal frost laws. However The Alberta Ministry of Transportation offers a e-mail notification service on their website to drivers who wish to stay up-to-date and legal on the latest road ban orders and seasonal weight restrictions. According to the website seasonal weights for heavy haul trucking are set according to the following schedule:

Spring: weather dependent, subject to thaw depth readings and begins at same time as Period 1 (weather dependent, subject to thaw readings of at last 25 cm.

Winter: weather dependent, subject to frost depth readings of one meter or more. In winter, trucking weights can be greater because the pavement is less vulnerable when the ground beneath it is frozen, providing support.

Seasonal Weights

Seasonal weights for heavy haul trucking are set according to the following schedule:

  • Spring: weather dependent, subject to thaw depth readings of at least 25 centimeters and begins at same time as Period 1 weights for service rigs
  • Post-Thaw: June 16 (may begin one week earlier or one week later)
  • Summer: July 1
  • Fall: September 1
  • Winter: weather dependent, subject to frost depth readings of 75 centimeters or more.

Seasonal weights for service rigs are set according to the following schedule:

  • Period 1: weather dependent, subject to thaw depth readings of at least 25 centimeters and begins at same time as Spring weights for heavy haul
  • Period 2: June 16 (may begin one week earlier or one week later)
  • Period 3: July 16
  • Period 4: September 1

Alberta also publishes a “Road Ban List” of major highways. Typically, the document lists weight restrictions of 90% of 75% of permitted axle weights. Access to the bans list can be viewed here: https://www.alberta.ca/road-restrictions-and-bans-overview.aspx#form15865

The most recent frost/thaw line can be viewed here: Thaw/Contour Map

You can contact the Alberta Ministry of Transportation by e-mail: central.permits@gov.ab.ca for general frost law inquiries. Contact information for City, County and other municipalities can be viewed here.

It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the Alberta posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.

Seasonal weight restrictions limit the maximum weight of vehicles allowed to travel on certain roads as a way to help prevent damage and protect public investment in the roadways.

Learn about frost laws in other Canadian provinces.

Please share your knowledge with others by commenting below:

Minnesota frost law restrictions.

2019 Minnesota frost laws, seasonal load weight and speed restrictions.

As of April 26th, 2019 the last update was on March 14th 2019 for Winter Load Increase end date set for the NORTH-CENTRAL and NORTH FROST ZONES.

Spring Load Restrictions start date set for the CENTRAL, NORTH-CENTRAL and NORTH FROST ZONES
www.dot.state.mn.us/materials/pvmtdesign/sll/doc/seasonalupdates03142019.pdfSEASONAL WEIGHT INCREASE: Minnesota highways are at their strongest during the winter months. During the dates set by the Commissioner of Transportation each winter, the weight limitations are increased by 10 percent in designated frost zones

WEIGHT RESTRICTIONS: Paved routes remain at 10-ton limits, unless signs are posted restricting the axle weights to a lower limit. The starting and ending dates for these restrictions are determined by the Commissioner of Transportation for each of the frost zones depicted in the online map. Any road may be restricted at any time by the appropriate jurisdiction when conditions threaten damage or deterioration.

The Minnesota weight limits pamphlet and map can be found at:
http://www.dot.state.mn.us/materials/pvmtdesign/sll/doc/weight-limits-pamphlet-2014.pdf

For Seasonal Load Limits see: http://www.dot.state.mn.us/materials/pvmtdesign/sll/updates.html

This is a tabbed table showing dates and routes subject to seasonal restrictions, maps, weight information, seasonal load limits, etc.

Michigan frost law restrictions.

2019 Michigan frost laws, seasonal load weight and speed restrictions.

The last update was released by Michigan on April 26th, 2019.

For the latest Spring Weight Restrictions updates, check 2019 Spring Weight Restriction Bulletins

Spring Weight Rules:

Michigan does not allow more than 11 axle trucks to enter or exit during Spring weight restrictions.

Michigan does not allow movements that exceed 14′ in width during Spring weight restrictions.

Michigan may subtract 25-35% of the normal legal weight an axle group can haul on non interstate roads during Spring weight restrictions.

Michigan does not allow movements that are over legal weight on any group of axles during Spring weight restrictions.

Latest Update

Title: Spring Weight Restriction Bulletin #9 #9

Date: 04/29/2019

Effective Wednesday, May 1, 2019, 6 a.m., weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to and including US-2 from Iron Mountain to St. Ignace. Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north of US-2 and M-185 on Mackinac Island.

State trunk line highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.

– On routes designated as “All Season Routes” (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.

– On routes designated as “Seasonal” (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.

Extended permits will be valid for oversize only in the weight restricted area.

Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.

Please refer to the MDOT Truck Operator’s Map for route designations.

State trunkline highways typically carry M, I, or US designations.

Updates

Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers

Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-373-6256.

For the most recent info, Please refer to the:

Calculate Oversize/Overweight Load Regulations and Prices Instantly with Oversize.io

Maine frost law restrictions.

2019 Maine Frost Laws, Seasonal Load Weight and Speed Restrictions.

Each spring, Maine DOT evaluates potential damage to state highways and determines whether weight restrictions should be imposed to prevent damage due to freeze/thaw action. Many municipalities undertake similar evaluations and restrictions on local road systems.

This means that a road that can carry a 15-ton load in the summer or winter may only be able to carry a 5-ton load as it thaws. A posted state road’s maximum weight limit is 23,000 pounds. The posting is temporary and is designed to protect a road while it is vulnerable.

For up-to-date road conditions and restrictions, go to: http://newengland511.org/ and select “trucking” at the top of the page and “Maine” at the top of the map.

For information about local road postings, please see the “Locally Posted Roads” Section or contact the appropriate municipal office:

http://maine.gov/mdot/postedroads/#undefined3