Right now, in late January, every jobsite in central Minnesota is frozen hard enough to drive anything anywhere. Six to eight weeks from now, half of them will be soup. Mud season — roughly mid-March through early May, depending on the year — is when we watch otherwise well-run projects lose whole weeks to stuck trucks, buried lumber packages, and cranes that can't reach the pad. The frustrating part is that most of it is preventable, and the prevention has to happen now, while the ground can still carry a loaded truck for free.
Do the dirt work while it's frozen
Frozen ground is the cheapest matting you'll ever get. Use it:
- Rock the access road now. Class 5 spread on frozen subgrade goes down fast and stays put. The same road built in April means tracked-in base, ruts, and repairs.
- Build crane and forklift pads early. Figure out where the crane sets for each building and get compacted rock there before thaw. A crane that can't get within reach of the pad stops framing entirely.
- Establish the laydown yard on high ground. Rock it, crown it so it sheds water, and size it for full packages — not the leftover corner that turns into a pond.
Know the frost-law calendar cold
Spring load restrictions typically post in March across Minnesota and North Dakota and hold for six to eight weeks. Once your route is posted, full lumber loads, concrete trucks, and crane moves either split into partial loads, wait for permits, or don't come at all. We plan around it two ways: get the heavy deliveries — floor systems, wall package, trusses if the schedule allows — onto the site before restrictions post, and confirm which routes to the site are restricted so nobody finds out from a stopped truck.
Stage deliveries like the mud is coming — because it is
- Fewer, earlier, bigger drops beat just-in-time deliveries in mud season. Material sitting on dunnage on rocked ground is an asset; a delivery truck buried to the axles is a lost day.
- Keep packages up on dunnage and covered. A lumber unit set in a swale in March is sitting in water by April, and wet, muddy lumber makes bad walls and worse floors.
- Leave forklift lanes rocked and open between laydown and the building. The shortest path across bare dirt stops being a path the first warm week.
Keep the mud off the deck
Mud tracked onto a subfloor breaks adhesive bonds, wrecks flooring prep, and turns a deck into a skating rink on frosty mornings. Our crews run scrape stations at ladder bases, keep sacrificial walk paths to the building, and sweep decks before glue goes down. It sounds fussy until you've paid for the alternative — we wrote about why deck cleanliness matters in our post on preventing subfloor squeaks.
Schedule around the ground, not the calendar
On multi-building projects, mud season is a sequencing problem. We work with the GC to keep crews on whichever pad has access — framing the building with rocked approaches while the wet one drains, shifting to panel prep, backframing, or interior work when a site goes soft for a few days. On a multi-building job like our Rogers senior living project, that kind of week-by-week access planning with the super is the difference between a March that produces and a March that's an excuse. A short weekly call about access, deliveries, and crane picks costs fifteen minutes and saves days.
Starting a project this spring and want a framing sub who plans for mud instead of complaining about it? Send us the plans and we'll build the logistics into the schedule from day one.