Minnesota Department of Transportation

511 Travel Info

Oversize/Overweight Permits

Red semi-truck features a yellow 'Oversize Load' sign over the grille.

Permitting System Glossary

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511 - MnDOT’s traveler information website to assist motorist in their decision making on Minnesota roadways. Features such as construction restrictions impacting travel hours and/or dimensions, weather conditions and reports, road closures and other features can be referenced using this online map. www.511mn.org

A, B, C weights (also referred to as bridge class, weight category, bridge weight) - Bridge weight categories that are determined by total axle group weight, and/or total gross vehicle weight (GVW).
A, B, C weight categories are used to determine route and specific restrictions applied to the bridges on the approved annual permit trip log.
Refer to Limits for Oversize/Overweight (OSOW) Annual Permit Attachment for allowable A, B, C axle group weights.

Annual Permit - 365 day permit for specific commodity types. Online route verification may be required for each move.

App_No - The number assigned to the application.

Application Status:

    • Working - The application is currently being worked on.
    • Update - The application is returned from MnDOT for you to update information.
    • Bridge - The application has been sent to the bridge office for manual review.
    • Supervisor - The application requires a Supervisor’s review for approval.
    • Approved - The application is available for payment and issue.
    • Completion - The application has been returned from the bridge office and is awaiting processing.
    • District - The application has been submitted to the district(s) for notification and review.
    • Issued - The application has been issued.

ARPS Account - see Organizational Account

Auto-generated Routing - Let system create my route, a function where the system provides a route based on a beginning and ending route and location.

Auto-Issue - System issued permits. Permits are generally auto-issued for loads that do not exceed14’6” W x 14’6”H x 110’0” L, do not exceed class A weights, and do not contain notes or unique symbols.

Axle Width - The width of a single axle line. Example, my axle width is 8’0” or 8’6” wide.


Bridge Check - A manual bridge analysis that the MnDOT Bridge Office performs for routes submitted.

Bridge Class (also referred to as A, B, C weights, weight category, bridge weight) - Bridge weight categories determined by total axle group weight, and/or total gross vehicle weight (GVW).
A, B, C weight categories are used to determine routes and specific restrictions applied to the bridges on the approved annual permit trip log.


Central Office - MnDOT’s headquarters location in St. Paul. MnDOT's Oversize/Overweight Permits Section is located at MnDOT’s Central Office Transportation Building, located at 395 John Ireland Blvd, St. Paul, MN 55155. Statewide permitting for all Minnesota trunk highways, US highways, and Interstate roadways is processed at this location.

Certified Pilot Car / Escort - All pilot car and escort drivers must obtain a certification card through the Minnesota Pilot Car Certification Program to be able to escort oversize/overweight vehicles on state roadways.


Details button - A button found at the bottom of the online permitting system routing page. Clicking on details will reveal route details, providing information such as total mileage, mileage by road segment, constraint/failure location details and general travel restrictions.

Divisible Load - Any load being moved which can be separated into units of legal weight without affecting the physical integrity of the load.


EW (Estimated Weight) - For Unit one and each of the vehicles, enter the empty weight of the individual vehicle in the EW field.

Evaluate button - The evaluate button is displayed with custom routing and is used to verify a route during intervals, and/or after all custom route information has been entered.


Generate button - The generate button is displayed with auto-generated routing and is used to verify a route once the beginning and end route, and location information have been entered.

Group Weights - Total weight of the total set of axles. Example, tandem, tridem (tri-axle), quad.


ID - A field in the vehicles tab used to auto-enter saved vehicle information by selecting a saved ID number you’ve stored for a specific vehicle.  Users with a MnDOT Organization account can save vehicle templates.

Info button - A button adjacent to the route location box. Clicking the info button opens a dialogue box to select the off system function when routing and allows entry of additional route instructions.

I provide route - A routing operation used to enter your own custom route line by line. Vehicle weight and dimensions are taken into account to determine if a route passes or fails the custom route.


Java - A programming language required to run the MnDOT Oversize/Overweight Permitting system.
NOTE:  HTML5 browsers such as Edge and Google Chrome no longer use Java, thus will not work with the MnDOT Oversize/Overweight Permitting System. Please see Minimum System Requirements for more compatibility information.

Job Permit - 60 day permit for a specified number of moves of like loads, vehicle configurations, weights and spacings, and route.


Kingpin - A pin on the underside front portion of trailer equipment which connects a trailer to a power unit using a fifth wheel plate on the power unit.


Let system create my route - A routing operation in which the system auto-generates routes based on weight and overall dimensions. Only enter the beginning and ending routes and location information when using this operation.

Log a Trip (also referred to as Trip Logging) - The process of entering your annual permit move into the MnDOT Oversize/Overweight Permitting System for route directions/approval.

Lookup - A tool used to search location data such as state road junctions, towns, and/or points of interest on a specific route during the routing procedure.


M/S No - Field to enter the model number and/or serial number of the load.

Miles - A field in the routing process, used to enter the distance in mileage in conjunction with Proximity settings.

Minimum System Requirements - Only approved operating systems, browsers, and java may be used with the MnDOT Oversize/Overweight Permitting system. Compatibility is determined on the Login screen. On that page, users can see if their system’s browser and java versions are approved by showing PASS or FAIL.

Remote Application Submittal for 32-bit x86 Windows is supported on:

    • Internet Explorer: 8.0 or Above (not to be confused with the Edge Browser on Windows 10)
    • Mozilla Firefox: 11.0 or Above


Non-divisible load - A load that consists of a single piece or item which cannot be separated to lighten the load without affecting its physical integrity. Examples of non-divisible loads include, but are not limited to: columns, wood or metal trusses, buildings, or service trucks.

Non supported characters - Characters that are not allowed when entering information in the online permitting system. Examples of non supported characters: # ; ?  & ,  . /   @ !  “  : = \  + *  ~

Notes - An open text box located at the top of the application that is used to communicate with permit staff. Use the notes field to enter instructions or to reply to an application that has been returned for corrections or review. NOTE: Permits will not auto-issue your permit if information is entered in the notes field.


OFCVO (Office of Freight & Commercial Vehicle Operations also referred to as CVO) - The Oversize/Overweight Permits section is part of the MnDOT Office of Freight and Commercial Vehicle Operations located at 395 John Ireland Blvd, St Paul, MN 55155.

Off System - A procedure used during the routing process to identify 1) the location/point at which the route begins its return route, 2) the proximity or junction at which the vehicle exits the state highway system to use a local road network.

Open last - Allows you to open a new permit application containing the information from the previous permit application.

Operation - The process of selecting either Let system create my route “auto-generated” or I provide route “custom routing”.

Organization Account (also referred to as ORG ID number, ARPS Account, MnDOT Account Number) - Customers have the option to open an account. Benefits of having an account include:

    • Receive an account number specific to the company.
    • Maintain stored credit card information.
    • Set up company profiles.
    • Add multiple users who can login under the MnDOT assigned account number.
    • Copy and revise permits.
    • Sort and view all applications and issued permits by the account holder.
    • Save and recall or open last applications.

OSOW - Acronym for oversize/overweight.


Permit Attachments - An attachment defining the limitations for oversize/overweight annual permits in Minnesota.

    • A copy of the MnDOT transportation permit, General Provisions, and Limits must be carried in the vehicle during transport of an OSOW load/vehicle and made available to law enforcement or a MnDOT official when requested.
    • An electronic copy may reside on a portable electronic device (e.g. laptop, tablet, smartphone) as long as the device provides a complete and legible copy of the documents.

Pre-Trip Route Survey – A complete route which has been physically surveyed to ensure clearance and navigation as part of the application process. Required when exceeding 16’0” H and
20’0” W. May also be required for excessive length.

Proximity - A routing enhancement used to offset and/or pinpoint an exact location that is not an exact junction on the route. When selecting town, the proximity setting defaults to VICNITY OF. However, proximities can be manually adjusted to EAST OF, WEST OF, NORTH OF, SOUTH OF, or LIMITS OF.


Remember button - The remember button copies the application information into a file on your local hard drive so it can be recalled for up to 7 days, saving you from having to re-enter the data. This function is especially useful when having to close the browser, but wanting to save the application information entered on the screen.

Return Reverse Route (also referred to as Return Route and RRR) - A route that is permitted to return to its origin in the opposite direction.

Revision (also called revise) - A procedure to alter an active permit. If changes are made to a configuration affecting weights and spacings, or number of axles, a new permit is required.

Road Area Used (also referred to as RAU or road used) - A calculation used to determine when an over dimension load and/or vehicle configuration encroaches over the centerline on a two-lane roadway.

RouteBuilder (also referred to as RBNT, rbnet or ARPS) - The name used to describe MnDOT's online Oversize/Overweight Permitting System.


Self-propelled - A self-propelled vehicle is equipment that powers its own movement. Examples: mobile crane, concrete pumpers, drill rig, etc.

Single Trip - 7 day permit for 1 move for a specific load, vehicle configuration weight and spacings, and route.


VIA - Used with custom routing and return routing, a VIA line is used to add state roads to your desired route. In general, when entering data into VIA, preset your operation to I provide route/custom routing.

VIN (Vehicle Identification Number) – Enter the last six digits of a VIN number for applications requiring this information for unit one.


WINNDOT Portal – A web interface permitting portal that allows carriers traversing in both Wisconsin and Minnesota to fill out one application and receive a permit from each state. The intent is to offer an efficient method of applying for permits and reduce the time a carrier spends in separate transactions.