Spring thaw restrictions · Maine

Maine Spring Thaw Weight Restrictions

Maine calls these posted roads rather than frost laws. The list covers state and state-aid highways and is republished as roads are added and released.

Check MaineDOT — Posted Roads before you dispatch.

This page mirrors the state's publication with a timestamp; it is not the authority. Read 1 day(s) ago (2026-09-08). The document states no date of its own. Open the state's own page.

In force on 2026-09-09

Status unknown — check the state

We hold no confirmed restriction list for Maine right now. That is not the same as "no restrictions" — open the state's page below.

The source, and how we read it

HTML table · Partly machine-readablePolled weekly (off season)
Publisher
Maine Department of Transportation
Authoritative page
https://www.maine.gov/dot/postedroads/
Format
HTML table — Partly machine-readable
What we do with it
Watched for change and linked. We do not synthesise a limit from a map or a PDF.
Posting season
02-15 to 05-31 — MaineDOT publishes the posted-road list for the spring thaw and lifts it as roads recover; the observed season runs from late February postings to a May lift.
Polling cadence today
Outside Maine's posting window by 101 days — polled weekly, so an unscheduled restriction and a broken source are both found before the season opens.
If our copy goes stale
It errs toward showing a restriction the state has already lifted, because this source publishes only what is currently in force.

Other states

All states and what each one publishes · Oversize & overweight permit calculator