If your community is reached by winter road, the delivery date is not something you choose: the road sets it, and in Manitoba it is open for only about six to eight weeks. Work backwards from the earliest realistic opening date, have site work finished before freeze-up, and plan for the road opening late, closing early or limiting weight. In practice, that means making the key decisions about a year before the homes move.
This guide is a planning calendar for housing managers, band councils and tribal council technical staff. It does not explain why factory-built homes suit remote sites (we cover that here), and it does not walk through funding programs. It covers timing: what needs to happen each month so finished homes are ready to roll on the first day the road can carry them, and what to do when the season does not cooperate.
How long is the winter road season, really?
Shorter than most project schedules assume. Manitoba's winter road system is over 2,356 kilometres long and serves more than 30,000 people in 22 communities. The province says that, depending on weather, the network is open from late January to mid-March. Indigenous Services Canada describes the same Manitoba roads as usually open for approximately 6 to 8 weeks, from mid-to-late January to mid-to-late March.
Ontario's network is longer. ISC supports approximately 3,200 kilometres of winter roads serving 32 remote First Nations, and the province's 2024–25 annual report describes an approximately 3,170-kilometre road system. Ontario's draft northern transportation plan says these roads give seasonal access for approximately three months per year, mostly from mid-January to March or April, and that communities use them to move fuel, food, water and housing materials.
In the Northwest Territories, the Department of Infrastructure says winter roads are typically open from December through April. Its five-year average dates vary widely by route: the Colville Lake Winter Road averages December 20 to April 6, the Gamètì Winter Road February 17 to April 13, and the Wekweètì Winter Road only March 15 to April 13. Use the average for your own route, not the territory-wide range.
What should happen in each month of the planning year?
The calendar below assumes a Manitoba- or Ontario-style season, with the road opening in mid-to-late January. If your road opens in December, as many NWT routes do, shift each step a month earlier. Treat it as a planning template, not a rule.
- February to March, one year out: Watch this season's road closely. Note the actual opening and closing dates on your route, any weight limits or closures, and how long freight took to arrive. Agree on the need: number of units, unit types, who they are for and where they will go.
- April to May: Confirm the budget source and timing (see our funding guide for program details). Ask builders for budget quotes that include the haul. Choose sites, and book survey and geotechnical work for when the ground is thawed.
- June to July: Sign the contract and approve the drawings. Confirm each module's width and height against the permit limits on your route (see the next section). Book a production slot, because factory calendars fill up for winter-road deliveries.
- August to September: Do site work while the ground is open: pads or foundations, water, sewer and power stubs, and access from the road to each lot. Anything for site prep that cannot wait for the winter road needs another way in.
- October to December: Homes are built in the factory. Apply for winter road and overweight or over-dimensional permits, line up the trucking and set crews, and plan where crews will stay and eat in the community.
- January: Finished units are staged and loaded. Check road status daily and be ready to move on the opening day of your section.
- February to March: The delivery window. Haul priority units first, set and close in each home, and keep a running count of units still to come against the days left in the season.
- April: Close-out, deficiencies and a short review: what arrived late, why, and what to change for next year.
Count backwards to check the plan. If a builder quotes about 16 weeks for manufacturing and delivery, and your road usually opens in the last week of January, production has to start by early October at the latest. September gives you a buffer. Missing that start date in the fall usually means missing the season.
What can a winter road actually carry?
Modular sections are wide, heavy loads, so permit conditions matter as much as the opening date. In Manitoba, a One Move permit is needed when a load's overall width exceeds 2.6 m or its height exceeds 4.15 m. The province says loads over 4.88 m wide are not recommended, and that there is no guarantee such permits will be authorized in a given year. Some bridges are narrower still: the Echimamish River Bridge on the road to Oxford House and the Cochrane River Bridge on the road to Brochet each have a 4.27 m width restriction. Loads over 4.25 m wide need a pilot escort and a winch truck, and the province asks permit holders for seven days' notice before some wide-load moves so staff can determine ice-bearing capacity.
Weight is governed by ice. Manitoba's general permit conditions say the maximum-posted weight must not be exceeded. They also cap vehicles over 7,000 kg at 15 km/h on any ice road. Manitoba's heavy-traffic guidance says all overweight and overwidth loads require winter road permits approved by the Region, and asks applicants to allow time for ice testing.
The NWT's field guide shows why weight limits rise slowly early in the season. Under its Guidelines for Safe Ice Construction (February 2015), allowable gross vehicle weight is estimated with Gold's Formula, P = Ah², where h is the minimum thickness of good-quality ice in centimetres. At the routine A value of 4, 50 cm of ice supports 10,000 kg, and it takes 100 cm to reach 40,000 kg. In other words, ice that is thick enough for a pickup truck can be far from thick enough for a loaded module truck. The same guide calls for reducing loads to 75% of the allowable figure where large, intersecting cracks are found. This is a 2015 document, so confirm current practice with the territory.
What can go wrong, and how do you plan for it?
- Late freeze-up. The road opens weeks after its average date. Plan: have units finished and staged early so they are ready on day one rather than arriving at the yard in late January. Keep site work off the critical path by finishing it in the fall.
- Early thaw. Manitoba says travel is not approved if there is water on any ice road and recommends against travel at −5°C or milder. A warm spell in early March can end the season for heavy loads. Plan: send the most important units first, and do not leave the last loads for the final week.
- Shortened seasons. Manitoba's safety guidance says that in recent seasons the number of days a section stays open has been reduced, and warns that immediate, early or permanent closures are possible. Ontario's draft plan says a changing climate is creating challenges by shortening the winter road season. The federal minister said in 2024 that climate change has significantly shortened the window. Plan: build the schedule on a short season, not an average one.
- Short-notice closures. Manitoba warns that sections may close for repairs on short notice because of changing weather. Plan: ask your builder and carrier how they handle a load that is stopped partway, where it can wait safely, and who pays for the delay.
- Weight limits that never reach full load. In a thin-ice year, posted limits may stay below what a loaded module truck needs. Plan: ask early about lighter configurations, smaller sections or splitting loads, and know the posted limit on your route before units leave the factory.
- Missed season. If units miss the window, they wait for the next one. Plan: agree in the contract where completed units would be stored, who insures them and who pays, before you need to.
How do you track opening dates and road status?
Each jurisdiction posts status differently, and your schedule should name someone to check it daily from December on.
- Manitoba: the province asks travellers to check road status on 511 before heading out, and lists every winter road at gov.mb.ca/mti/winter. Its safety page also gives a 24-hour winter road voice report line and says travel is not approved until a section officially opens. Permits come through Manitoba Permit Services.
- Ontario: the provincial Winter Roads Program funds First Nation communities for the construction and operation of their winter roads, with federal support through ISC, so status usually comes from the community or tribal council operating your road. Confirm the contact in the summer.
- Northwest Territories: the Department of Infrastructure says roads are opened as soon as they are safe, and points to DriveNWT and its highway conditions map for current conditions, including weight restrictions.
Keep your own record each year: actual opening date, first date heavy loads were allowed, and closing date. After two or three seasons, that record is a better planning tool than any average.
What decisions belong to council, and when?
Most delays on winter-road projects start with a late decision, not a late truck. Put these decisions on the council calendar early:
- By late spring: approve the project scope, the number and type of units, and the sites.
- By early summer: approve the contract and drawings, so the builder can book a production slot.
- By late summer: sign off on site-work completion, so pads and services are confirmed before freeze-up.
- Before production starts: name a single person who can approve changes, because a change made in November can push a unit past the road's closing date.
Foundations are one decision worth making early. A home set on a skid system that stays under the unit does not wait on a poured foundation, which removes one piece of site work from a short fall season. Our overview of modular Indigenous housing compares skids and foundations.
Where does a builder fit in?
A builder cannot change when the road opens, but it can make sure finished homes are waiting for it. Herauf Modular builds homes and community buildings as finished sections indoors in its Saskatchewan and BC plants, then delivers and sets them on site. Most builds are manufactured and delivered in about 16 weeks, with foundations, pads and services prepared on site at the same time. Every unit meets or exceeds CSA A277 and the National Building Code for climate zones 6 through 8.
For St. Theresa Point First Nation in northern Manitoba, Herauf built through the off-season and delivered roughly 1,300 km north over the winter ice road: first a child and family services building, then, in March 2026, three youth transitional homes. At Nisichawayasihk Cree Nation, housing went in on the Herauf rapid portable skid system, so the build did not wait on a poured foundation.
If you are planning for next winter's road, the best time to start talking is now. Herauf replies to enquiries within one business day. Contact Herauf Modular to compare your road's season against a build schedule. This article is general information. Confirm permit conditions, load limits and road status with your provincial or territorial transportation department and your road operator.
This guide is general information, not legal or financial advice. Program rules change: confirm the details with the program, your Indigenous Services Canada regional office or CMHC before relying on them. Herauf does not administer any program or apply on a community's behalf.