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Weight Limits on Interstate System routes for Special Products*


*Special Products Include: Logs, pulpwood, stull, poles or piling; Ores, concentrates, sand & gravel, and aggregates thereof, in bulk; Unprocessed agricultural products, including livestock.
LEGAL ALLOWABLE GROSS LOADS
Maximum Load in Pounds Carried on any Group of Two or More Consecutive Axles
 
Column A
Column B

 
Column A
Column B
Distance in feet between first and last axle of any group of consecutive axles
Vehicles with three or four axles
Vehicles with five or more axles

Distance in feet between first and last axle of any group of consecutive axles
Vehicles with three or four axles
Vehicles with five or more axles
Single Axle Weight
20,000
20,000

28' 66,000 70,950
3' thru 12'
37,800
37,800

29' 66,000 71,500
13' 56,470 56,470
30' 66,000 72,050
14' 57,940 57,940
31'   72,600
15' 59,400 59,400
32'   73,150
16' 60,610 60,610
33'   73,700
17' 61,820 61,820
34'   74,250
18' 63,140 63,140
35'   74,800
19' 64,350 64,350
36'   75,350
20' 65,450 65,450
37'   75,900
21' 66,000 66,330
38'   76,450
22' 66,000 67,250
39'   77,000
23' 66,000 67,880
40'   77,550
24' 66,000 68,510
41'   78,100
25' 66,000 69,150
42'   78,650
26' 66,000 69,770
  43'+   79,000
27' 66,000 70,400
     
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Page Last Modified: 5/22/2007 1:46:26 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

CVS@itd.idaho.gov

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Idaho Transportation Department
3311 W. State Street ยท P.O. Box 7129
Boise, ID 83707-1129