Idaho Code § 49-1001 Allowable Gross Loads

LibraryIdaho Statutes
Edition2023
CurrencyCurrent through the 2023 Regular Legislative Session
Year2023
CitationIdaho Code § 49-1001

The gross load imposed on the highway by any vehicle or combination of vehicles shall not exceed the limits in this section. The maximum single axle gross weight shall be twenty thousand (20,000) pounds, the maximum single wheel gross weight shall be ten thousand (10,000) pounds and the maximum gross vehicle or combination weight shall be one hundred five thousand five hundred (105,500) pounds, provided that maximum gross vehicle or combination weight on United States federal interstate and defense highways of this state shall not exceed eighty thousand (80,000) pounds, except as permitted under the provisions of section 49-1004, Idaho Code.

(1) The total gross weight imposed on the highway by any group of consecutive axles shall be determined by the following formula:

W=500((LN/N-1)+12N+36)

Where W is the maximum weight in pounds (to the nearest 500 pounds) carried on any group of two (2) or more consecutive axles. L is the distance in feet between the extremes of any group of two (2) or more consecutive axles, and N is the number of axles under consideration.

The formula is modified as illustrated in the following table:

<TABLE><TBODY> <TR> <TD colspan="2"> Distance in feet between the extremes of any group of 2 or more consecutive </TD><TD colspan="7"> Maximum load in pounds carried on any group of 2 or more consecutive axles </TD> </TR> <TR> <TD> axles </TD><TD> 2 axles </TD><TD> 3 axles </TD><TD> 4 axles </TD><TD> 5 axles </TD><TD> 6 axles </TD><TD> 7 axles </TD><TD> 8 axles </TD><TD> 9 axles </TD><TD> 10 axles </TD><TD> 11 axles </TD><TD> 12 axles </TD><TD> 13 axles </TD> </TR> <TR> <TD> 4 </TD> <TD> 34,000 </TD> </TR> <TR> <TD> 5 </TD> <TD> 34,000 </TD> <TD colspan="4"> WHEN NO ALLOWABLE WEIGHT IS </TD> </TR> <TR> <TD> 6 </TD> <TD> 34,000 </TD> <TD colspan="4"> LISTED FOR ANY AXLE SPACING, </TD> </TR> <TR> <TD> 7 </TD> <TD> 34,000 </TD> <TD colspan="4"> APPLY THE ALLOWABLE WEIGHT </TD> </TR> <TR> <TD> 8 </TD> <TD> 34,000 </TD> <TD colspan="4"> AS LISTED IN THE FIRST COLUMN </TD> </TR> <TR> <TD> 8+ </TD> <TD> 38,000 </TD> <TD> 42,000 </TD> <TD colspan="4"> TO THE LEFT </TD> </TR> <TR> <TD> 9 </TD> <TD> 39,000 </TD> <TD> 42,500 </TD> </TR> <TR> <TD> 10 </TD> <TD> 40,000 </TD> <TD> 43,500 </TD> </TR> <TR> <TD> 11 </TD> <TD> 44,000 </TD> </TR> <TR> <TD> 12 </TD> <TD> 45,000 </TD> <TD> 50,000 </TD> </TR> <TR> <TD> 13 </TD> <TD> 45,500 </TD> <TD> 50,500 </TD> </TR> <TR> <TD> 14 </TD> <TD> 46,500 </TD> <TD> 51,500 </TD> </TR> <TR> <TD> 15 </TD> <TD> 47,000 </TD> <TD> 52,000 </TD> </TR> <TR> <TD> 16 </TD> <TD> 48,000 </TD> <TD> 52,500 </TD> <TD> 58,000 </TD> </TR> <TR> <TD> 17 </TD> <TD> 48,500 </TD> <TD> 53,500 </TD> <TD> 58,500 </TD> </TR> <TR> <TD> 18 </TD> <TD> 49,500 </TD> <TD> 54,000 </TD> <TD> 59,000 </TD> </TR> <TR> <TD> 19 </TD> <TD> 50,000 </TD> <TD> 54,500 </TD> <TD> 60,000 </TD> </TR> <TR> <TD> 20 </TD> <TD> 51,000 </TD> <TD> 55,500 </TD> <TD> 60,500 </TD> <TD> 66,000 </TD> </TR> <TR> <TD> 21 </TD> <TD> 51,500 </TD> <TD> 56,000 </TD> <TD> 61,000 </TD> <TD> 66,500 </TD> </TR> <TR> <TD> 22 </TD> <TD> 52,500 </TD> <TD> 56,500 </TD> <TD> 61,500 </TD> <TD> 67,000 </TD> </TR> <TR> <TD> 23 </TD> <TD> 53,000 </TD> <TD> 57,500 </TD> <TD> 62,500 </TD> <TD> 68,000 </TD> </TR> <TR> <TD> 24 </TD> <TD> 54,000 </TD> <TD> 58,000 </TD> <TD> 63,000 </TD> <TD> 68,500 </TD> <TD> 74,000 </TD> </TR> <TR> <TD> 25 </TD> <TD> 54,500 </TD> <TD> 58,500 </TD> <TD> 63,500 </TD> <TD> 69,000 </TD> <TD> 74,500 </TD> </TR> <TR> <TD> 26 </TD> <TD> 55,500 </TD> <TD> 59,500 </TD> <TD> 64,000 </TD> <TD> 69,500 </TD> <TD> 75,000 </TD> </TR> <TR> <TD> 27 </TD> <TD> 56,000 </TD> <TD> 60,000 </TD> <TD> 65,000 </TD> <TD> 70,000 </TD> <TD> 75,500 </TD> </TR> <TR> <TD> 28 </TD> <TD> 57,000 </TD> <TD> 60,500 </TD> <TD> 65,500 </TD> <TD> 71,000 </TD> <TD> 76,500 </TD> <TD> 82,000 </TD> </TR> <TR> <TD> 29 </TD> <TD> 57,500 </TD> <TD> 61,500 </TD> <TD> 66,000 </TD> <TD> 71,500 </TD> <TD> 77,000 </TD> <TD> 82,500 </TD> </TR> <TR> <TD> 30 </TD> <TD> 58,500 </TD> <TD> 62,000 </TD> <TD> 66,500 </TD> <TD> 72,000 </TD> <TD> 77,500 </TD> <TD> 83,000 </TD> </TR> <TR> <TD> 31 </TD> <TD> 59,000 </TD> <TD> 62,500 </TD> <TD> 67,500 </TD> <TD> 72,500 </TD> <TD> 78,000 </TD> <TD> 83,500 </TD> </TR> <TR> <TD> 32 </TD> <TD> 60,000 </TD> <TD> 63,500 </TD> <TD> 68,000 </TD> <TD> 73,000 </TD> <TD> 78,500 </TD> <TD> 84,500 </TD> <TD> 90,000 </TD> </TR> <TR> <TD> 33 </TD> <TD> 64,000 </TD> <TD> 68,500 </TD> <TD> 74,000 </TD> <TD> 79,000 </TD> <TD> 85,000 </TD> <TD> 90,500 </TD> </TR> <TR> <TD> 34 </TD> <TD> 64,500 </TD> <TD> 69,000 </TD> <TD> 74,500 </TD> <TD> 80,000 </TD> <TD> 85,500 </TD> <TD> 91,000 </TD> </TR> <TR> <TD> 35 </TD> <TD> 65,500 </TD> <TD> 70,000 </TD> <TD> 75,000 </TD> <TD> 80,500 </TD> <TD> 86,000 </TD> <TD> 91,500 </TD> </TR> <TR> <TD> 36 </TD> <TD> 66,000 </TD> <TD> 70,500 </TD> <TD> 75,500 </TD> <TD> 81,000 </TD> <TD> 86,500 </TD> <TD> 92,000 </TD> <TD> 98,000 </TD> </TR> <TR> <TD> 37 </TD> <TD> 66,500 </TD> <TD> 71,000 </TD> <TD> 76,000 </TD> <TD> 81,500 </TD> <TD> 87,000 </TD> <TD> 93,000 </TD> <TD> 98,500 </TD> </TR> <TR> <TD> 38 </TD> <TD> 67,500 </TD> <TD> 71,500 </TD> <TD> 77,000 </TD> <TD> 82,000 </TD> <TD> 87,500 </TD> <TD> 93,500 </TD> <TD> 99,000 </TD> </TR> <TR> <TD> 39 </TD> <TD> 68,000 </TD> <TD> 72,500 </TD> <TD> 77,500 </TD> <TD> 82,500 </TD> <TD> 88,500 </TD> <TD> 94,000 </TD> <TD> 99,500 </TD> </TR> <TR> <TD> 40 </TD> <TD> 68,500 </TD> <TD> 73,000 </TD> <TD> 78,000 </TD> <TD> 83,500 </TD> <TD> 89,000 </TD> <TD> 94,500 </TD> <TD> 100,000 </TD> <TD> 106,000 </TD> </TR> <TR> <TD> 41 </TD> <TD> 69,500 </TD> <TD> 73,500 </TD> <TD> 78,500 </TD> <TD> 84,000 </TD> <TD> 89,500 </TD> <TD> 95,000 </TD> <TD> 100,500 </TD> <TD> 106,500 </TD> </TR> <TR> <TD> 42 </TD> <TD> 70,000 </TD> <TD> 74,000 </TD> <TD> 79,000 </TD> <TD> 84,500 </TD> <TD> 90,000 </TD> <TD> 95,500 </TD> <TD> 101,000 </TD> <TD> 107,000 </TD> </TR> <TR> <TD> 43 </TD> <TD> 70,500 </TD> <TD> 75,000 </TD> <TD> 80,000 </TD> <TD> 85,000 </TD> <TD> 90,500 </TD> <TD> 96,000 </TD> <TD> 102,000 </TD> <TD> 107,500 </TD> </TR> <TR> <TD> 44 </TD> <TD> 71,500 </TD> <TD> 75,500 </TD> <TD> 80,500 </TD> <TD> 85,500 </TD> <TD> 91,000 </TD> <TD> 96,500 </TD> <TD> 102,500 </TD> <TD> 108,000 </TD> <TD> 114,000 </TD> </TR> <TR> <TD> 45 </TD> <TD> 72,000 </TD> <TD> 76,000 </TD> <TD> 81,000 </TD> <TD> 86,000 </TD> <TD> 91,500 </TD> <TD> 97,500 </TD> <TD> 103,000 </TD> <TD> 108,500 </TD> <TD> 114,500 </TD> </TR> <TR> <TD> 46 </TD> <TD> 72,500 </TD> <TD> 76,500 </TD> <TD> 81,500 </TD> <TD> 87,000 </TD> <TD> 92,500 </TD> <TD> 98,000 </TD> <TD> 103,500 </TD> <TD> 109,000 </TD> <TD> 115,000 </TD> </TR> <TR> <TD> 47 </TD> <TD> 73,500 </TD> <TD> 77,500 </TD> <TD> 82,000 </TD> <TD> 87,500 </TD> <TD> 93,000 </TD> <TD> 98,500 </TD> <TD> 104,000 </TD> <TD> 110,000 </TD> <TD> 115,500 </TD> </TR> <TR> <TD> 48 </TD> <TD> 74,000 </TD> <TD> 78,000 </TD> <TD> 83,000 </TD> <TD> 88,000 </TD> <TD> 93,500 </TD> <TD> 99,000 </TD> <TD> 104,500 </TD> <TD> 110,500 </TD> <TD> 116,000 </TD> <TD> 122,000 </TD> </TR> <TR> <TD> 49 </TD> <TD> 74,500 </TD> <TD> 78,500 </TD> <TD> 83,500 </TD> <TD> 88,500 </TD> <TD> 94,000 </TD> <TD> 99,500 </TD> <TD> 105,000 </TD> <TD> 111,000 </TD> <TD> 116,500 </TD> <TD> 122,500 </TD> </TR> <TR> <TD> 50 </TD> <TD> 75,500 </TD> <TD> 79,000 </TD> <TD> 84,000 </TD> <TD> 89,000 </TD> <TD> 94,500 </TD> <TD> 100,000 </TD> <TD> 105,500 </TD> <TD> 111,500 </TD> <TD> 117,000 </TD> <TD> 123,000 </TD> </TR> <TR> <TD> 51 </TD> <TD> 76,000 </TD> <TD> 80,000 </TD> <TD> 84,500 </TD> <TD> 89,500 </TD> <TD> 95,000 </TD> <TD> 100,500 </TD> <TD> 106,000 </TD> <TD> 112,000 </TD> <TD> 118,000 </TD> <TD> 123,500 </TD> </TR> <TR> <TD> 52 </TD> <TD> 76,500 </TD> <TD> 80,500 </TD> <TD> 85,000 </TD> <TD> 90,500 </TD> <TD> 95,500 </TD> <TD> 101,000 </TD> <TD> 107,000 </TD> <TD> 112,500 </TD> <TD> 118,500 </TD> <TD> 124,000 </TD> </TR> <TR> <TD> 53 </TD> <TD> 77,500 </TD> <TD> 81,000 </TD> <TD> 86,000 </TD> <TD> 91,000 </TD> <TD> 96,500 </TD> <TD> 102,000 </TD> <TD> 107,500 </TD> <TD> 113,000 </TD> <TD> 119,000 </TD> <TD> 124,500 </TD> </TR> <TR> <TD> 54 </TD> <TD> 78,000 </TD> <TD> 81,500 </TD> <TD> 86,500 </TD> <TD> 91,500 </TD> <TD> 97,000 </TD> <TD> 102,500 </TD> <TD> 108,000 </TD> <TD> 113,500 </TD> <TD> 119,500 </TD> <TD> 125,000 </TD> </TR> <TR>...

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