W=500 ( LN/(N-1) + 12N + 36)
where W = overall gross weight on any group of two or more consecutive axles to the nearest 500 pounds, L = distance in feet between the extreme of any group of two or more consecutive axles, and N = number of axles in the group under consideration; except, that two consecutive sets of tandem axles may carry a gross load of 34,000 pounds each, provided the overall distance between the first and last axles of the consecutive sets of tandem axles is 36 feet or more and the overall gross weight may not exceed 80,000 pounds, including the allowable load tolerance.
COMPUTED GROSS WEIGHT TABLE
For various spacings of axle groupings | |||||
Distance in feet between first and last axles of vehicle or combination of vehicles | Maximum load in pounds on all the axles | ||||
2 axles | 3 axles | 4 axles | 5 axles | 6 axles | |
8 or less | 36,000 | 42,000 | 42,000 | ||
9 | 38,000 | 42,500 | 42,500 | ||
10 | 40,000 | 43,500 | 43,500 | ||
11 | 44,000 | 44,000 | |||
12 | 45,000 | 50,000 | 50,000 | ||
13 | 45,500 | 50,500 | 50,500 | ||
14 | 46,500 | 51,500 | 51,500 | ||
15 | 47,000 | 52,000 | 52,000 | ||
16 | 48,000 | 52,500 | 58,000 | 58,000 | |
17 | 48,500 | 53,500 | 58,500 | 58,500 | |
18 | 49,500 | 54,000 | 59,000 | 59,000 | |
19 | 50,000 | 54,500 | 60,000 | 60,000 | |
20 | 51,000 | 55,500 | 60,500 | 66,000 | |
21 | 51,500 | 56,000 | 61,000 | 66,500 | |
22 | 52,500 | 56,500 | 61,500 | 67,000 | |
23 | 53,000 | 57,500 | 62,500 | 68,000 | |
24 | 54,000 | 58,000 | 63,000 | 68,500 | |
25 | 54,500 | 58,500 | 63,500 | 69,000 | |
26 | 56,000 | 59,500 | 64,000 | 69,500 | |
27 | 57,000 | 60,000 | 65,000 | 70,000 | |
28 | 59,000 | 60,500 | 65,500 | 71,000 | |
29 | 60,000 | 61,500 | 66,000 | 71,500 | |
30 | 62,000 | 66,500 | 72,000 | ||
31 | 63,500 | 67,000 | 72,500 | ||
32 | 64,500 | 68,000 | 73,500 | ||
33 | 65,000 | 69,000 | 74,000 | ||
34 | 65,500 | 70,000 | 74,500 | ||
35 | 66,500 | 71,000 | 75,000 | ||
36 | 67,000 | 72,000 | 76,000 | ||
37 | 68,000 | 73,000 | 77,000 | ||
38 | 69,000 | 74,000 | 78,000 | ||
39 | 70,000 | 75,000 | 79,000 | ||
40 | 71,000 | 76,000 | 80,000 | ||
41 | 72,000 | 77,000 | 81,000 | ||
42 | 73,000 | 78,000 | 82,000 | ||
43 | 74,000 | 79,000 | 83,000 | ||
44 and over | 75,000 | 80,000 | 84,000 |
Ala. Code § 32-9-20 (1975)