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Missouri · Oversize & Overweight

Missouri Oversize & Overweight Permits filed with MoDOT for you, 24/7

In Missouri, a load over 8 ft 6 in wide, 14 ft high on interstates (13 ft 6 in on other highways) or 80,000 lbs needs a permit from MoDOT Motor Carrier Services, applied for online only through MoDOT Carrier Express. A single-trip permit must be completed within 7 moving days. Send us the load and route: our permit desk quotes the price and files it for you.

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What will an oversize permit in Missouri 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
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Missouri rules

Missouri legal limits and permit rules

The size and weight Missouri allows without a permit, when escorts are required and when a permitted load may run.

Legal limits without a permit

Width
8 ft 6 in
Height, interstates and designated routes
14 ft
Height, other highways
13 ft 6 in
Semitrailer, interstate
53 ft
Single axle
20,000 lbs
Tandem axle
34,000 lbs
Gross weight
80,000 lbs
Axle tolerance off the interstate
Up to 2,000 lbs

Escorts

Over 12 ft 6 in to 14 ft wide
One escort: rear on divided or multi-lane, front on two-lane
Over 14 ft to 16 ft wide
Front and rear on two-lane and undivided multi-lane; one rear on divided
Over 110 ft long (non-divided) or 125 ft (all highways)
Rear escort
Over 15 ft 6 in high
Height-detection vehicle ahead
Highway Patrol escort
16 ft wide on two-lane, 18 ft on divided or multi-lane, 17 ft high, over 150 ft long
Escort drivers
Licensed, 18 or older; no certification

When you can move

Travel hours
30 min before sunrise to 30 min after sunset
At night
Overweight-only up to 110 ft long; up to 12 ft 6 in wide with conditions
Holidays
New Year's, Memorial Day, July 4, Labor Day, Thanksgiving, Christmas: from noon the last business day before
Over 12 ft 6 in to 14 ft wide
No moves 6:30–9 a.m. or 3:30–6 p.m. on weekdays
Weekends
No Saturday or Sunday moves around Lake of the Ozarks and Branson
Weather
No moves on snow or ice or under 500 ft of visibility

Source: MoDOT Motor Carrier Services and MoDOT Carrier Express; 7 CSR 10-25.020 (amended effective March 31, 2025); RSMo 304.170 and 304.180. Your permit's own conditions always apply.

Which permit you need

Missouri permits for oversize and overweight loads

  1. One move between two points

    Single-trip permit

    The move must be completed within 7 moving days. Applications go online only, through MoDOT Carrier Express.

  2. Moves all year

    Annual permit

    Valid until midnight on January 1 of the following year, whatever month it was issued.

  3. Utility work

    30-day public-utility blanket

    A 30-day blanket permit for public-utility loads.

  4. Over 16 ft wide, 16 ft high, 150 ft long or 160,000 lbs

    Superload permit

    MoDOT evaluates the route before issuing; allow at least two weeks.

Routes and road rules

Where Missouri routes add their own rules

Missouri's metro areas and its two tourist regions set hours beyond the statewide permit. Overweight-only loads are exempt from the metro curfews.

  1. St. Louis City and County

    No permitted moves from 6:30 to 9 a.m. and 3:30 to 6:30 p.m. on weekdays, on every route except Route 370.

    Plan:Cross St. Louis between the two windows, or use Route 370.

  2. St. Charles and the I-70 Missouri River Bridge

    The St. Charles curfew is bounded by the I-70 Missouri River Bridge and runs one way at a time.

    Hours:Eastbound 6:30–9 a.m., westbound 3:30–6:30 p.m. on weekdays.

  3. Kansas City and Springfield

    Both metros close to permitted loads from 7 to 9 a.m. and 4 to 6 p.m. on weekdays.

    Springfield:Some routes are exempt from the curfew.

  4. Lake of the Ozarks and Branson

    Permitted loads may not move on Saturday or Sunday in these two areas. Missouri has no statewide weekend ban.

    Plan:Deliveries there go Monday through Friday.

Missouri loads

Missouri permits for the loads Missouri hauls

MoDOT issues annual blanket permits for housing, farm, dairy and construction equipment.

  1. Housing

    Manufactured and sectional homes

    Annual blankets for units up to 12 ft 6 in wide and 150 ft long. House moves have their own rules.

  2. Farm

    Hay and farm implements

    Annual blankets for hay up to 12 ft 6 in wide and farm implements up to 14 ft 6 in wide within a 100-mile radius.

  3. Dairy

    Milk haulers

    An annual blanket for milk haulers up to 85,500 lbs.

  4. Construction and drilling

    Rigs, pumps and cranes

    Annual blankets for well-drilling rigs, concrete pumps and cranes.

How it works

Your Missouri 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 Missouri rules for your load and files with MoDOT Motor Carrier Services.

  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 Missouri

  1. Height changes with the road

    14 ft is legal on interstates and designated routes, 13 ft 6 in everywhere else. We check where a 13 ft 9 in load leaves the interstate before filing.

  2. The Patrol comes in early on two-lane roads

    At 16 ft wide on any two-lane highway Missouri requires a Highway Patrol escort, against 18 ft on divided roads. We route wide loads onto divided highways where we can.

  3. Holiday bans start a business day early

    The ban starts at noon on the last business day before the holiday, so a Monday holiday stops the load on Friday afternoon. We check your dates before you promise delivery.

FAQ

Missouri oversize permit questions

What size or weight triggers a MoDOT oversize permit?

Anything over 8 ft 6 in wide, 14 ft high on interstates and designated routes or 13 ft 6 in on other highways, 53 ft for a semitrailer on the interstate, or 80,000 lbs gross, 20,000 lbs on a single axle or 34,000 lbs on a tandem.

How much does a Missouri oversize permit cost?

It depends on the size, weight and route, and superloads cost more. 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 many moving days does a Missouri single-trip permit allow?

Seven. The trip must be completed within 7 moving days of the permit. Annual permits run until midnight on January 1 of the following year.

At what width does Missouri send a Highway Patrol escort?

At 16 ft wide on any two-lane highway and 18 ft on divided or multi-lane highways. The Patrol also escorts loads 17 ft high or over 150 ft long.

Can a permitted load deliver near Branson or Lake of the Ozarks on a weekend?

No. Permitted loads may not move on Saturday or Sunday in the Lake of the Ozarks and Branson areas. Elsewhere in Missouri weekend travel is allowed.

When can an oversize load get through St. Louis on a weekday?

Outside 6:30–9 a.m. and 3:30–6:30 p.m. Those hours apply on every route in St. Louis City and County except Route 370. Loads that are only overweight are exempt.

How does Route One GO get my Missouri permit?

Send us the truck, trailer, load dimensions, axle weights and route. Our permit desk checks the Missouri rules, files in MoDOT Carrier Express, and sends you the permit with a route map. Requests are taken 24/7.

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