Spring thaw restrictions · Washington Embed this tool

Washington Spring Thaw Weight Restrictions

Status on 2026-11-14

Status unknown — check the state
Restrictions—No current reading

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

The source, and how we read it
JSON API · Machine-readablePolled weekly (off season)
Publisher
Washington State Department of Transportation
Format
JSON API — Machine-readable
What we do with it
Parsed into dated restriction rows.
Posting season
02-01 to 05-15 — WSDOT posts seasonal load restrictions on state highways during the spring thaw and publishes them alongside its other commercial-vehicle restrictions in the Traveler Information API.
Polling cadence today
Outside Washington's posting window by 79 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.
About this data

Washington is one of the 21 states this engine already prices permits for, so a restriction here can change a quote we issue. The feed is a typed JSON API and carries a start and end date per restriction.

We hold no current reading of this source.

Check the official publication before dispatch.