Missouri Oversize Permits Overweight Trucking Permits Rules and Requirement
Missouri Oversize permits OR Missouri Overweight Permits are required when a vehicle or its load exceeds the state feet legal size or weight limits and needs to travel on public highways. These permits ensure compliance with safety standards and protect road infrastructure.
Missouri oversize permits phone number: 630-222-5770
At Chicago Permit, we specialize in securing Missouri Oversize Permits and Missouri Overweight Permits quickly and affordably. Whether you need Missouri Single Trip Permits, Missouri Annual Permits, or Missouri Overhang Permits, our team is here to simplify the process. We help trucking companies and independent drivers navigate the complex Missouri oversize regulations and Missouri Oversize / Overweight Regulations to ensure safe and legal transport.
We offer fast, reliable service for obtaining Missouri oversize overweight permits online, including those regulated by MODOT (Missouri Department of Transportation). Our experienced permit agents stay up to date on Missouri oversize travel restrictions, Missouri overweight permits requirements, and the latest rules from the Missouri Department of Transportation. We also guide you through understanding Missouri oversize permit cost and assist you with the Missouri oversize permits phone number if direct agency contact is needed.
Trust Chicago Permit for expert help with Missouri oversize permits, ensuring compliance with all Missouri oversize regulations. Whether it’s a one-time haul or regular transport, we’ve got you covered with comprehensive support and online access.
Missouri oversize regulations
Missouri Legal Dimension Limit
| Legal Dimensions for Trucking in Missouri | Legal Length in Missouri | Width | Height |
|---|---|---|---|
| General Legal Limits | A semi-trailer and its load, including rear extension, can be up to 53 feet on Interstates and approved highways. | 8 feet 6 inches permitted on designated highways and Interstates. | Maximum height: 14 feet on approved routes. |
| Up to 60 feet permitted when traveling more than 10 air miles away from the designated highway system. | On all other roads, width limit is 8 feet. | Height limit is 13 feet 6 inches on all other roads. |
Important For Height: Any overheight loads must be carried on a drop-deck trailer in order to be eligible for a permit.
Missouri Legal Weight Limit
The maximum allowable gross vehicle weight is 80,000 pounds, subject to axle configurations
Axle Weight Limits — Missouri
| Axle Type | Weight Limit |
|---|---|
| Single Axle | 20,000 pounds (or 22,000 pounds on secondary routes) |
| Tandem Axle | 34,000 pounds (36,000 on secondary roads) |
| Tridem Axle | 34,000 pounds for 8 feet spacing, 42,500 pounds for 9 feet spacing |
Important: In Missouri, permits are not issued solely for total gross weight if the legal weight limit is not exceeded overall but specific axle groups are over the limit
Missouri Routine Limit: Missouri Oversize and Overweight Limits
Legal Dimensions — Missouri
| Dimension | Limit |
|---|---|
| Length | up to 150 feet |
| Width | Maximum of 16 feet |
| Height | Permits can allow up to 16 feet, though some routes restrict this to 15 feet 7 inches. |
Maximum Axle Weights With Missouri Overweight Permit:
Weight (based on axle configuration and spacing)
Weight Allowances — Missouri
| Axles | Weight Limit |
|---|---|
| 5 Axles | Up to 104,000 pounds |
| 6 Axles | Up to 120,000 pounds |
| 7 Axles | A configuration with 7 axles arranged in a 1-3-3 setup may carry loads up to 130,000 pounds |
Axle Group Weight Limits — Missouri
| Axle Type | Weight Limit |
|---|---|
| Single Axle | Up to 27,000 pounds |
| Tandem Axle | Tandem axle assemblies may be permitted up to 46,000 pounds (restricted to 40,000 pounds on a 10-foot axle spread) |
| Tridem Axle | Up to 60,000 pounds |
| Quad Axle | Up to 72,000 pounds |
Note: Missouri does not authorize 1-2-2-1 configurations (tractor with tandem drives, tandem trailer, and booster). A tridem drive tractor must be used if pairing with a tandem trailer and booster setup.
Superload Classifications: Any load that exceeds these dimensions or has a gross weight over 160,000 pounds falls under the category of a Super Load and requires special authorization.
Missouri oversize permits validity period
To operate legally in Missouri, commercial carriers must secure the appropriate permits based on vehicle size, weight, and registration status. Below is a detailed guide to the validity of all key Missouri trucking permits, including oversize, overweight, superload, IRP, IFTA, TRP, and temporary trip and fuel permits.
Missouri Permit Types
| Permit Type | Validity Period | Requirement |
|---|---|---|
| Single Trip Oversize/Overweight Permit | Valid for up to 7 consecutive calendar days | For a one-time move of an oversize or overweight load along a specified route. Specific to one trip between origin and destination; any changes require a new permit. |
| Multi-Trip Permits | Usually issued for 30 days, but can vary based on load type and route | Allows repeated movements of the same type of oversize or overweight load within a specified area or route. Often used by carriers with frequent, similar shipments. |
| Annual Permits | Valid for 12 months from the date of issuance | Also known as “blanket permits,” these cover regular movements of certain oversize/overweight loads. Applies to loads within pre-approved dimensions and routes; great for routine hauls. |
| 72-Hour Permits | Valid for 72 hours (3 days) from the time and date requested | For out-of-state carriers not registered under IRP or IFTA to operate in Missouri temporarily. Commonly used by temporary or short-term commercial vehicle operators. |
| Oversize and Overweight Permits | Single-Trip: Up to 7 days. Annual or Multi-Trip: Varies, often 30 days to 1 year | Required when any vehicle or load exceeds Missouri’s legal limits for weight, height, length, or width. Must comply with routing, travel time restrictions, and may require escorts or additional equipment. |
| IRP/IFTA Trip and Fuel Permits | Both permits are valid for 72 hours (3 days) | IRP Trip Permit: For vehicles not registered under the International Registration Plan to travel in Missouri.
IFTA Fuel Permit: For vehicles without IFTA credentials to purchase fuel and operate in the state legally. Notes: Ideal for interstate carriers making temporary trips through Missouri without full registration. |
Operating Time Missouri:
Movement is permitted from 30 minutes before sunrise until 30 minutes after sunset, including Saturdays and Sundays. However, travel is not allowed for loads wider than 14 feet on weekends. In metropolitan and tourist-heavy regions, operating times are further restricted (see section on restricted travel below). Overweight loads up to 112,000 pounds, provided they are within legal dimensions, may travel 24 hours a day outside of metro and tourist zones only..
Restricted Travel Missouri:
- Holiday Travel: No travel is permitted on major holidays or after 12:00 PM the day before a holiday or holiday weekend.
- St. Louis Restrictions: No movement allowed in St. Louis city or county (except on Route 370), including:
I-70 in St. Charles County
Route 94 and Route 40/61
Jefferson County: Route 51 and Routes 41/61/67
Restricted hours: 6:30 AM to 9:00 AM and 3:30 PM to 6:30 PM. - Kansas City Area: No travel allowed on routes 150, 291, I-470, 152 west of I-435, or any road within the enclosed loop of I-435 and city limits from:
7:00 AM to 9:00 AM
4:00 PM to 6:00 PM
These time restrictions do not apply to overweight-only loads.
- Bridge Travel Prohibition: No permitted movement is allowed over Mississippi River bridges on I-70, I-55, and I-64 in St. Louis, or Routes 60/62 at Cairo, Illinois.
- Tourist Season Restrictions: From June 1 through Labor Day in the Lake of the Ozarks area, and through October 31 in the Branson area, weekend travel is prohibited on most routes within 10 miles of Branson excluding Route 65.
Details for these curfews are fully outlined in Part 9 of the Missouri Permit Regulations booklet, which drivers are advised to carry when operating oversize/overweight (O/D) loads within the state.
Missouri Oversize permits Tire Regulation
- All wheels and tires must be in good operational condition, properly inflated, and must show the minimum legal tread depth.
Chains or protrusions made of materials other than rubber are not allowed unless their use is deemed safe and has been approved. - Note: Studded tires are prohibited for use between April 1 and November 1.
Missouri Escort Requirement
Escort Requirements
| Length-Based Escorts | Width-Based Escorts | Height-Based Escorts |
|---|---|---|
| Loads longer than 90 feet require one escort vehicle on all highways, excluding divided highways | For loads exceeding 12 feet 4 inches in width: one escort vehicle is mandatory (two escorts required if traveling off approved highway routes) | Over 15 feet 6 inches: Traveling on two-lane or undivided highways requires one escort vehicle |
| Over 14 feet: One escort on Interstates and divided highways | Over 15 feet 6 inches: Divided highways require one escort along with a completed route survey. A high-pole escort is mandatory, and a utility truck with a bucket lift may be needed to manage overhead utility lines | |
| Over 14 feet: Two escorts required for two-lane or undivided highways |
Missouri Banners, Lighting & Flage Requirement
Loads exceeding 10 feet 6 inches in width must display “Oversize Load” signs on both the front and rear of the hauling vehicle.
If the total length of the load exceeds 90 feet, an additional “Oversize Load” sign is required on the rear of the load.
Red or fluorescent flags must be placed on the outermost edges or projections of any overwidth or overlength load.
Additional Information
When a trailer is extended or spread out, Missouri authorities require information on the total deck space used and unused on the well, front, and rear portions of the trailer.
Missouri Oversize/Overweight Fee structure
Missouri offers a variety of vehicle and transportation permits, each with its own fee depending on the type and usage. Below is a breakdown of key permit types and their current associated costs:
Permit Fees
| Permit Type | Fee |
|---|---|
| Standard Single Trip Oversize Permit (including pre-issued) | $15 |
| Oversize Load over 16′ wide, 16′ high, or 150′ long | $250 |
| Multi-Stop Oversize Permit (Farm Implements only) | $25 |
| Loads up to and including 160,000lbs gross weight | $15 + $20 for every 10,000lbs above legal gross weight |
| Loads exceeding 160,000lbs gross weight | $15 + $20 per 10,000lbs over legal limit |
| Bridge & Roadway Analysis Fee (0–50 miles) | $425 |
| Bridge & Roadway Analysis Fee (51–200 miles) | $625 |
| Bridge & Roadway Analysis Fee (over 200 miles) | $925 |
| Annual Emergency Overweight Blanket Permit (round trip) | $624 |
| Annual Oversize Blanket Permit – Single Commodity | $128 |
| Annual Oversize Blanket Permit – Multiple Commodities | $400 |
| Annual Blanket Overweight Permit – Well Drillers or Concrete Pump Trucks | $300 |
| 30-Day Blanket Permit | $300 |
| Project-Specific Permit | $125 |
| Highway Crossing Permit | $250 |
| Permit Revisions | $2.00 |
Frequently Asked Questions
Missouri oversize permits can be obtained online through our website Chicago Permit or by calling us at 630-222-5770
In Missouri, vehicles or loads exceeding 8 feet 6 inches in width, 13 feet 6 inches in height, 53 feet in length (for semi-trailers), or 80,000 pounds gross weight are considered oversize or overweight. Such loads must secure the appropriate permits.
Generally, oversize loads are allowed to travel during daylight hours only, from 30 minutes before sunrise to 30 minutes after sunset. Night travel may be allowed under special conditions and must be stated in the permit.
Missouri oversize permits can be obtained online through our website chicagopermit.net or by calling us at 630-222-5770
The cost of a Missouri oversize permit depends on the type and size of the load. Typically, single trip permits start around $15 to $50.
Missouri oversize permit prices vary by load dimensions and route. A basic permit may cost approximately $15 to $50.
You can log in to manage your Missouri oversize permit through Our website chicagopermit.net
In Missouri, any vehicle or load exceeding standard legal dimensions specifically over 8 feet 6 inches wide, 13 feet 6 inches high, 53 feet long, or 80,000 pounds gross weight is classified as oversized and requires a special permit.
The maximum width allowed without a permit in Missouri is 8 feet 6 inches. Anything wider is considered oversize and must be permitted.
Permit rules in Missouri include restrictions on travel times, escort requirements, designated routes, and specific weight or size limits. Permits must be obtained before entering the state with an oversize or overweight load.
Yes, Missouri requires trip permits for out-of-state carriers that are not registered under the International Registration Plan (IRP). These permits allow temporary entry into the state.
Applications for Missouri oversize permits can be submitted online via our website chicagopermit.net or by calling us at 630-222-5770
Legal loads in Missouri must not exceed 8 feet 6 inches in width, 13 feet 6 inches in height, 53 feet in length for trailers, and 80,000 pounds in gross weight. Any vehicle exceeding these dimensions or weight must secure an oversize or overweight permit.
Overweight permit costs depend on axle weights and total load weight. Fees generally start at $15 and increase based on the load.
The phone number for assistance is 630-222-5770.
The price for an oversize permit typically ranges from $15 to $50 for single trips. Prices vary depending on load specifications and routing.
Yes, you can get Missouri oversize permit online by calling us at 630-222-5770.
A Missouri overweight permit may start at around $15 but can go higher based on axle configuration and total weight.
You can reach Chicago Permit at 📞 630-222-5770 for all Missouri oversize permit services, including guidance, pricing, and applications. Their specialists are available to assist you immediately.
