Missouri oversize permit office
Missouri Department of Transportation (MoDOT), Motor Carrier Services - Oversize/Overweight Permits. Call 1-866-831-6277 Central time.
From Missouri's own pages, checked 2026-10-24. Fees and rules change: the state's page is the last word.
- Apply online
- MoDOT Carrier ExpressSource
- How to get one
- Apply online in MoDOT Carrier Express; MoDOT takes oversize/overweight applications only there, and it is open 24/7.
- Single trip fee
- Single trip oversize permits—fifteen dollars ($15); over 16' wide, 16' high, or 150' long adds a $250 movement feasibility fee. Single trip overweight up to 160,000 lbs—$15 plus $20 per each 10,000 lbs over legal gross weight; over 160,000 lbs also adds a bridge and roadway analysis fee ($425 for 0–50 miles, $625 for 51–200 miles, $925 over 200 miles).Source
- Legal without a permit
- Width 8'6" · Height 13'6" on all highways; 14' on interstates, the designated and primary highway system, or within 10 air miles of them · Length 53' trailer and load (truck-tractor semi-trailer); no overall limit on interstate/designated system or within 10 air miles, 60' overall when farther away · Weight 80,000 lbs grossSource
- Superloads
- Your load is a superload if it is over 16 feet wide, over 16 feet tall, over 150 feet long, or over 160,000 lbs gross.Source
- How fast
- Superloads are issued only by the Jefferson City office after a bridge and road study, and take about two weeks; routine permit timing is not published.Source
When you can move
- Daylight
- Moves are allowed from 30 minutes before sunrise to 30 minutes after sunset (National Weather Service times), and not on snowy or icy roads, in strong crosswinds, or with visibility under 500 ft.Source
- At night
- Night moves are allowed for loads up to 12 ft 6 in wide that are legal height and no longer than 110 ft (hay up to 14 ft wide, otherwise legal), and for overweight-only loads within routine limits; signs must be lit or reflective.
- Weekends
- No statewide weekend ban, but no moves on Saturdays and Sundays near Lake of the Ozarks (May 25 to Labor Day) and Branson (May 1 to Nov 30); superloads may move on weekends only if 16 ft wide or less.
- Holidays
- New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day. No moves from 12 noon on the last business day before the holiday until 30 minutes before sunrise on the first business day after it. Next datesSource
- Rush-hour curfews
- 9 in Missouri, such as St. Louis City and County (all routes except Route 370): Mon-Fri 6:30-9 a.m. and 3:30-6:30 p.m. All of them