Legal size & loaded measurements
Loaded height
13′6″–14′14′ on Interstate and designated highways; 13′6″ on other highways. Commercial zones and automobile transporters have separate provisions.
Front overhang
Missouri regulations and issued permit terms govern front projection; exact treatment remains configuration-specific.
Gross and axle weight
Missouri weight legality requires gross, axle, group, spacing, tire, registration, bridge, route and posted-condition facts.
Width & route-dependent height
General width is 102″. Missouri allows loaded height up to 14′ on Interstate and designated highways, and 13′6″ on other highways. Automobile transporters and commercial zones have separate provisions. Confirm the road classification and actual overhead clearance for the entire move.
Permits, routes & larger loads
Roads & authorities
MoDOT Motor Carrier Services administers the state OSOW path; local, county, city, federal, port and facility permissions remain separate.
Permit products & applications
Use MoDOT Carrier Express for the current OSOW application; the user guide states that credentials are sent by Motor Carrier Services and application pages drive the workflow.
State permit fees
Single-trip agency fee example
$15 for this Missouri planning example: a nondivisible load measuring 8′7″ wide, 13′ high and 70′ overall, at 72,000 lb gross on a five-axle rig with a 48′ trailer. The example uses 100 in-state miles. Change the load details in the calculator for your move.
What the agency estimate includes
The calculator applies Missouri's maintained single-trip permit schedule to the loaded vehicle and the supplied fee inputs. It itemizes the supported state charges, including weight or distance charges where applicable. Annual permits, special products, local permissions and payment-method charges need their own applicable schedule.
MO / Permit worksheet
Price your Missouri movement.
Enter the complete loaded vehicle. Get estimated agency fees and escort requirements before sharing your contact details.
The numbers behind your next move.
Your result will show the agency fee breakdown, potential pilot-car requirements, and the rules used to calculate them.
- 01 State agency fee subtotal
- 02 Escort & survey considerations
- 03 Sources & pricing assumptions
Single-state pricing uses the mileage you enter. For a proposed route and intermediate states, use the route calculator.
About the example equipment
The samples use ODPermit’s editable 48 ft flatbed · 5 axles planning profile. Loaded dimensions, gross weight, 100 state miles and Texas registration are example inputs, not a capacity rating or a route approval. Replace them with your actual setup.
Great Dane Freedom trailer specifications — 48 ft platform; the illustrated 40 in drop deck and 20 in drop support a 60 in upper-deck planning height. Combined tare and tractor geometry are editable ODPermit assumptions.
Pilot cars, height poles & surveys
14′6″-wide load example
Example: 14′6″ wide × 13′ high, 75′ overall, 72,000 lb gross, zero overhang or rear projection, ordinary nondivisible freight in daylight. Two-lane roads: 1 front and 1 rear pilot cars. Multi-lane undivided roads: 1 front and 1 rear pilot cars. Divided highways: 1 rear pilot car.
17′6″-high load example
Example: 9′ wide × 17′6″ high, 75′ overall, 72,000 lb gross, zero overhang or rear projection, ordinary nondivisible freight in daylight. Two-lane roads: 2 front (one with height pole) pilot cars. Multi-lane undivided roads: 1 front (height pole required) pilot car. Divided highways: 1 front (height pole required) pilot car.
Travel hours & road restrictions
Permit travel conditions
MoDOT's superload pilot path requires additional application/route review; preliminary or portal activity is not an issued authorization.
Restricted travel
Current restrictions, route, bridge, construction, weather, holiday and metropolitan conditions must be checked against the issued permit.
Daylight & poor visibility
The ordinary permitted travel window starts 30 minutes before sunrise and ends 30 minutes after sunset. Named permit products and issued conditions can differ. Movement is restricted in hazardous road conditions or visibility below 500 feet; holiday and metropolitan restrictions also apply.
Signs, flags & safety equipment
Safety equipment
Missouri regulations and issued conditions control signs, flags, lights, securement and safety; exact thresholds require the applicable product.
Oversize load signs
Missouri regulations and issued conditions control oversize signs; exact triggers and placement require the selected product.
What the driver needs
Prepare the driver packet
Carry the issued MoDOT permit and its conditions, and present them for inspection. Confirm the accepted document format when the permit is issued.
Carry the permit
Carrier Express workflow produces an issued permit and conditions that must match the movement; draft/application status is not authorization.
Special equipment & permit programs
Special permit programs
Carrier Express and the superload pilot are separate program paths; do not treat login, feasibility or a draft as authorization.
Special vehicle programs
Carrier Express OSOW and the superload pilot are distinct program paths with separate route/application review and conditions.
BEFORE THE TRUCK ROLLS
Turn the estimate
into a permitted move.
Confirm the loaded measurements, carrier details, travel dates and exact pickup and delivery. We can help coordinate permits, escorts and route surveys around those facts.
THE SOURCE RECORD
Official references.
Read the rule behind each requirement. These are dated references; current restrictions and the issued permit control your move.
- 01Missouri Oversize/Overweight Permit Regulation Book—Effective March 31, 2025
2025 Regulations §§6, 12-15
Source record: - 02MoDOT — 2025 Oversize/Overweight Regulation Book
RSMo 304.170, printed page 47; general travel conditions, printed page 19
Source record: - 03
- 04MoDOT OSOW regulations, March 30, 2025 — section 4(B) permit and bridge-analysis fees
MoDOT OSOW regulations, March 30, 2025 — section 4(B) permit and bridge-analysis fees
Source record: - 05MoDOT 2025 OSOW Regulations — escort table and sections 13–15
MoDOT 2025 OSOW Regulations — escort table and sections 13–15
Source record: - 06MoDOT 2025 OSOW Regulations — escort table and sections 13–15
MoDOT 2025 OSOW Regulations — escort table and sections 13–15
Source record: - 07Missouri Revised Statutes Sections 304.170 through 304.240
RSMo §§304.170-.240 — vehicle size, weight and permit authority
Source record: - 082026 Superload Law-Enforcement Escort Pilot
2026 Superload Law-Enforcement Escort Pilot
Source record: - 09
- 10Ordering Missouri OSOW Permits—MoDOT Carrier Express User Guide
Ordering Missouri OSOW Permits — Carrier Express User Guide
Source record: