Cart

Wyoming · Oversize & Overweight

Wyoming Oversize & Overweight Permits filed with the Highway Patrol for you, 24/7

Wyoming oversize and overweight permits follow WYDOT rules and are issued by the Wyoming Highway Patrol. A load over 8 ft 6 in wide or 14 ft high, or past the length and axle limits, needs one. On the interstate a truck can gross up to 117,000 lbs by the bridge table without a permit. A single-trip permit runs no more than four days. Send us the load and route: our permit desk quotes the price and files it for you.

Request a permit

What will an oversize permit in Wyoming cost?

Enter your pickup and delivery locations, choose your permit type, and compare estimated permit costs across route options.

  1. Oversize and overweight permits across the lower 48 and DC
  2. State-by-state fee breakdown for each route option
  3. Order your permit or talk to a specialist
Calculate permit cost

Wyoming rules

Wyoming legal limits and permit rules

The size and weight Wyoming allows without a permit, when a load needs escorts and when a permitted load may run.

Legal limits without a permit

Width
8 ft 6 in (102 in)
Height
14 ft
Single unit or semitrailer
60 ft
Doubles and triples, trailers
81 ft
Other combinations
85 ft
Single axle
20,000 lbs
Tandem axle
36,000 lbs
Triple axle
42,000 lbs
Gross, interstate
Up to 117,000 lbs by bridge table

Escorts

Two-lane roads, 14 ft wide or more, or crossing the centerline
Front and rear escort
Interstate or divided highway, 15 ft wide or more
Rear escort
Length, two-lane roads / interstate
Escort from 110 ft / 150 ft
Rear overhang 25 ft or more
Escort
Over 17 ft high
Front escort with a height-measuring device
Spacing
About 1,000 ft from the load
Wider loads
The Highway Patrol may add escorts

When you can move

Oversize moves
Daylight only
Exception
Loads up to 10 ft wide, on interstates only
Holidays, escorted moves
New Year's, Memorial Day, July 4, Labor Day, Thanksgiving Day, Christmas: sunset the evening before to sunrise the day after
Three-day weekends
Escorted moves park the whole weekend
Over 18 ft wide
Off primary and secondary roads during school bus or heavy commuter traffic
Advisories
No moves under no-unnecessary-travel advisories or chain law
Wind
Blow-over-prone vehicles observe light, high-profile closures, classes 1 to 4, on every highway
Frost
Posted restrictions only

Source: WYDOT Chapter 5, Size and Weight Limitations of Vehicles (rules filed after the October 2024 hearing); Wyoming Highway Patrol commercial carrier, ports of entry and mountain road pages. Your permit's own conditions always apply.

Which permit you need

Wyoming permits for oversize and overweight loads

  1. One move, up to four days

    Single-trip permit

    Covers one move and runs no more than four days.

  2. Up to one year

    Class D extended-period permit

    Repeat moves up to 12 ft wide, 15 ft high, 75 ft for a single unit and 120 ft overall.

  3. Up to 18 ft wide, 17 ft high, 120 ft long

    Class B and C permits

    The classes for larger loads within those limits, up to 160,000 lbs gross.

  4. Anything past Class B and C

    Class A superload

    Approved only by the Overweight Loads Office. Over 18 ft wide or 18 ft high, at least 24 hours' prior notice; some route studies take 72 hours or more.

Routes and road rules

Where Wyoming routes add their own rules

Ports of entry, a mountain pass with a winter trailer ban, wind on the interstates and road width all shape a Wyoming move.

  1. Wyoming ports of entry

    Every commercial vehicle stops at a port: Alpine, Casper, Cheyenne on I-80, US-85 and I-25, Evanston, Frannie, Gillette, Kemmerer, Laramie, Lusk, Sheridan, Sundance and Torrington.

    Before the port:We file the permit so it is ready when the truck rolls in.

  2. Teton Pass, WY-22

    60,000 lbs maximum weight, and from November 15 to April 1 no trailers of any kind.

    In winter:Trailer loads go another way.

  3. Wind on I-80 and I-25

    Wind restrictions run in classes 1 to 4 on all highways, interstates included. Vehicles prone to blow-over must observe closures to light, high-profile vehicles.

    Light, tall loads:They wait out the closure.

  4. Narrow roads, wide loads

    A load over 26 ft wide is not allowed on roads 32 ft wide or narrower. Over 18 ft wide, it stays off primary and secondary roads during school bus or heavy commuter traffic.

    Over 26 ft:We route on roads wider than 32 ft.

Wyoming loads

Wyoming permits for the loads Wyoming hauls

Beside the general classes, Wyoming sets permit classes for farm, forest and aggregate freight and for heavy multi-piece loads.

  1. Timber and hay

    Forest products and hay

    Class E/F permits, valid up to 90 days.

  2. Harvest

    Sugar beets

    Sugar beet hauls run under Class E/F, for up to 90 days.

  3. Aggregate and ranch

    Gravel and livestock

    Gravel and livestock loads use Class E/F permits too, 90 days at most.

  4. Over 117,000 lbs

    Class W multi-piece permit

    For multi-piece loads heavier than 117,000 lbs.

How it works

Your Wyoming permit in three steps

  1. Send the load and route

    Truck, trailer, dimensions, weight, origin and destination. Your fleet details are saved for next time.

  2. We check and file

    Our permit desk checks the Wyoming rules for your load and files with Wyoming Highway Patrol / WYDOT.

  3. Get your permit

    You get the permit PDF, a written route and an interactive route map to share with the driver.

From our permit desk

What we check before filing in Wyoming

  1. Four days to finish the trip

    A Wyoming single-trip permit runs no more than four days. We set the start date so the port stops and daylight hours fit inside it.

  2. Superload notice and route studies

    Class A loads go through the Overweight Loads Office. Over 18 ft wide or high needs 24 hours' notice, and some route studies take 72 hours or more. We file as soon as the dimensions are firm.

  3. Weather can hold the load

    No moves under no-unnecessary-travel advisories or chain law, and blow-over-prone loads observe wind closures. We plan the move dates with spare days for it.

FAQ

Wyoming oversize permit questions

How heavy can a truck run on Wyoming interstates before it needs a permit?

Up to 117,000 lbs gross by the bridge table, or 80,000 lbs under Table 2, with 20,000 lbs on a single axle, 36,000 on a tandem and 42,000 on a triple.

How much does a Wyoming oversize permit cost?

It depends on the permit class, size, weight and route. Put your route into our permit cost calculator for an estimate, or send us the load and our permit desk quotes the exact price before filing.

How long can doubles and triples run in Wyoming?

Up to 81 ft of trailers, with three units at most. Other combinations go to 85 ft, and a single unit or semitrailer to 60 ft.

Which Wyoming permit class covers my load?

Class D, for up to a year, covers loads up to 12 ft wide, 15 ft high, 75 ft single unit and 120 ft overall. Class B and C go to 18 ft wide, 17 ft high, 120 ft long and 160,000 lbs. Anything bigger is a Class A superload, approved by the Overweight Loads Office.

When does a Wyoming oversize load need an escort?

On two-lane roads, front and rear from 14 ft wide or when the load crosses the centerline; on interstates and divided highways, a rear escort from 15 ft. Length calls for one from 110 ft on two-lane roads and 150 ft on the interstate, rear overhang from 25 ft, and over 17 ft high a front escort carries a height-measuring device.

Which holidays park escorted loads in Wyoming?

New Year's, Memorial Day, July 4, Labor Day, Thanksgiving Day only and Christmas, from sunset the evening before to sunrise the day after. On a three-day weekend the block covers the whole weekend.

How does Route One GO get my Wyoming permit?

Send us the truck, trailer, load dimensions, axle weights and route. Our permit desk checks the Wyoming rules and permit class, files with the Wyoming Highway Patrol, and sends you the permit with a route map. Requests are taken 24/7.

Keep going

More on truck permits

24/7 permit desk

Need a permit in Wyoming for this load?

Send the details once. We file with Wyoming Highway Patrol / WYDOT, plus every other state on your route.

Request a permit