Idaho Transportation Department
About Us Travel Services DMV Get Involved News and Information
Printer-Friendly Version
ITD Home News and Info Contact Us

DMV HomeOn-Line ServicesNew to Idaho?Driver ServicesVehicle ServicesMotor Carrier Services / Ports of EntryDriver Licensing OfficesVehicle Licensing OfficesCounty WebsitesOther State DMV LinksInformation for Idaho Military PersonnelManualsLinksRecent LegislationIdaho Motor Vehicle LawsAdmin. RulesVoter RegistrationDMV Historytrucking.idaho.govContact Us

Bridge Weight Calculation Examples

* 37,800 lbs. is allowed for Bulk Materials not exceeding 79,000 lbs on Interstate routes or 80,000 lbs on non-Interstate routes.
** Bridge Length and Axles will determine this allowable weight.
*** To Calculate the Allowed Legal Weight for the steering axle, use 600 lbs per inch width of tire.
Example: 11 inch tires can legally carry 13,200 lbs.

Bulk Materials include: Logs, pulpwood, stull, poles, or piling;

Ores, concentrates, sand & gravel, and aggregates thereof, in bulk;

Unprocessed agricultural products, including livestock.

Back to Previous Page Off-Track Calculator Bridge Tables
Page Last Modified: 5/22/2007 2:04:49 PM

Division of Motor Vehicles / Commercial Vehicle Services
Ports of Entry- (208) 334-8688
Motor Carrier- (208) 334-8611
Overlegal Permits- (208) 334-8420
or 1-800-662-7133

About Us | Traveler Services | DMV | Projects | News And Info | Reader-Friendly | Privacy & Security
Idaho Transportation Department
3311 W. State Street ยท P.O. Box 7129
Boise, ID 83707-1129