Vehicle Dimension Regulations and Commercial Zones
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Questions and Answers

What is the maximum height of any vehicle outside of a commercial zone on designated highways?

14 feet

What is the maximum height of any vehicle in a commercial zone?

15 feet

What is the maximum height on all other highways?

13 1/2 feet

What is the maximum width of any vehicle?

<p>8 1/2 feet</p> Signup and view all the answers

What is the capacity to be classified as a commercial zone?

<p>Commercial zones exist only in cities with a population of 75,000 or more.</p> Signup and view all the answers

What defines the commercial zone?

<p>The commercial zone is one mile beyond the city limits, plus one mile for every 50,000 residents or portion thereof, except for a few cities.</p> Signup and view all the answers

What is the commercial zone extent for St. Louis?

<p>Extends 18 miles beyond the city limits.</p> Signup and view all the answers

What is the commercial zone extent for Kansas City?

<p>Extends 12 miles beyond the city limits and includes the city of Harrisonville.</p> Signup and view all the answers

What is the extent of commercial zones for Springfield, St. Joseph, and Columbia?

<p>Extend only 2 miles beyond the city limits.</p> Signup and view all the answers

What is the maximum length for any single vehicle?

<p>45 feet</p> Signup and view all the answers

What is the maximum length for any bus or trackless trolley coach?

<p>45 feet</p> Signup and view all the answers

What is the maximum length of truck-tractor and semi-trailer on interstates?

<p>53 feet</p> Signup and view all the answers

What is the maximum length of truck-tractor and semi-trailer upon all other roads?

<p>60 feet</p> Signup and view all the answers

What is the maximum length of truck-tractor, semi-trailer, and trailer combinations on interstates?

<p>28 feet</p> Signup and view all the answers

What is the maximum length of truck-tractor, semi-trailer, and trailer combinations upon all other roads?

<p>65 feet</p> Signup and view all the answers

What is the maximum length of truck and trailer(s) and all other combinations of vehicles on interstates?

<p>65 feet</p> Signup and view all the answers

What is the maximum length of truck and trailer(s) and all other combinations of vehicles on all other roads?

<p>55 feet</p> Signup and view all the answers

What is the maximum length for automobile transporters and boat transporters?

<p>75 feet (for combination unit plus 3 feet front to 4 feet overhang)</p> Signup and view all the answers

What is the maximum length for Driveaway Saddle Mount Combinations on interstates?

<p>97 feet</p> Signup and view all the answers

Motor vehicle carriers may carry loads that extend beyond their legal length limits, but loads must not extend more than 3 feet beyond the front or 4 feet beyond the rear of the vehicle.

<p>True</p> Signup and view all the answers

What are some exemptions from size limits (excluding interstate highways)?

<p>1.Farm machinery driven occasionally for short distances 2.Vehicles temporarily transporting farm machinery. 3.Implement dealers delivering or moving farm machinery for repair. 4.Vehicles temporarily transporting road-making machines or road materials. 5.Vehicles towing disabled vehicles for repair on highways.</p> Signup and view all the answers

How do weight limitations (without special permit) compare with bridge limits?

<p>A bridge's weight limit may differ from the road's weight limit. If the bridge has a different weight limit, the limit will be posted.</p> Signup and view all the answers

What is the maximum weight on any single axle allowed on interstates?

<p>20,000 lbs</p> Signup and view all the answers

What is the maximum weight on any single axle allowed in a commercial zone?

<p>22,400 lbs</p> Signup and view all the answers

What is the maximum weight on any single axle allowed on all other routes?

<p>22,000 lbs</p> Signup and view all the answers

What is the maximum weight on any tandem axle allowed on interstates?

<p>34,000 lbs</p> Signup and view all the answers

What is the maximum weight on any tandem axle allowed on all other routes?

<p>36,000 lbs</p> Signup and view all the answers

How do you calculate the maximum gross weight?

<p>Multiply the number of axles by the maximum weight allowed on any single axle in that area.</p> Signup and view all the answers

Is 80,000 lbs of maximum gross weight allowed on all highways in Missouri except where?

<p>Where bridge structures are posted with lesser weight limits.</p> Signup and view all the answers

What is the maximum gross weight allowed on interstates, primary, and other designated highways?

<p>80,000 lbs</p> Signup and view all the answers

You may apply for an over-dimension or overweight permit.

<p>True</p> Signup and view all the answers

Study Notes

Vehicle Dimension Regulations

  • Maximum height for vehicles outside commercial zones on designated highways is 14 feet.
  • Maximum height for vehicles in commercial zones is 15 feet.
  • Maximum height on all other highways is 13.5 feet.
  • Maximum width for any vehicle is 8.5 feet.

Commercial Zone Capacity

  • Commercial zones are established in cities with populations of 75,000 or more.
  • Commercial zones extend 1 mile beyond city limits, plus 1 additional mile for every 50,000 residents or portion thereof, with exceptions for certain cities.
  • St. Louis has a commercial zone extending 18 miles beyond city limits.
  • Kansas City's commercial zone extends 12 miles beyond city limits, including Herrisonville.
  • Springfield, St. Joseph, and Columbia have commercial zones that extend only 2 miles beyond city limits.

Vehicle Length Regulations

  • Maximum length for any single vehicle is 45 feet.
  • Buses or trackless trolley coaches (not including safety bumpers) have a maximum length of 45 feet.
  • Maximum length for truck-tractor and semi-trailer on interstates and designated highways is 53 feet.
  • On all other roads, this combination has a maximum length of 60 feet.
  • Double bottom combinations on interstates and designated highways have a maximum length of 28 feet.
  • On other roads, the maximum length for double bottoms is 65 feet.
  • Maximum length for truck and trailer combinations on interstates is 65 feet; on all other roads, it's 55 feet.
  • Automobile and boat transporters can be up to 75 feet long, including overhangs.
  • Driveaway saddle mount combinations can be up to 97 feet on interstates and designated highways.

Load Extensions and Exemptions

  • Motor vehicle carriers can carry loads extending beyond legal limits, with specific front (3 feet) and rear (4 feet) extension allowances.
  • Exemptions from size limits include:
    • Farm machinery driven occasionally for short distances.
    • Temporary transportation of farm machinery.
    • Implement dealers moving farm machinery for repair.
    • Vehicles moving road-making machinery or materials.
    • Towing disabled vehicles for repair.

Weight Regulations

  • Maximum weight on any single axle allowed on interstates is 20,000 lbs.
  • Maximum weight on any single axle in commercial zones is 22,400 lbs.
  • Maximum weight on a single axle on all other routes is 22,000 lbs.
  • Maximum weight on tandem axles on interstates is 34,000 lbs; on other routes, it is 36,000 lbs.
  • Maximum gross weight calculations involve multiplying the number of axles by the maximum weight allowed per axle.
  • 80,000 lbs of maximum gross weight is allowed on all Missouri highways, except on bridges with posted lower weight limits.
  • The maximum gross weight allowed on interstates, primary, and other designated highways is 80,000 lbs.

Permits

  • Over-dimension or overweight permits can be applied for under certain circumstances.

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Description

Test your knowledge on vehicle dimension regulations and commercial zone capacities. This quiz covers maximum height, width, and length restrictions for vehicles in various zones, along with specific details about commercial zones in different cities. Assess your understanding of these important regulations.

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