§ 9.46.090. Allowable gross weights.

A.

The gross weight of any vehicle or combination of vehicles shall not exceed any of the limits provided in this section. The most restrictive limitation shall determine the maximum allowable weight of every vehicle or vehicle combination:

1.

The maximum gross vehicle weight shall not exceed the weight determined from the following formula:

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

Where:

W	=	The maximum gross vehicle weight to the nearest 500 pounds.
L	=	The distance in feet between extreme axles.
N	=	The number of axles.

 

2.

The weight on axles shall not exceed and the distance between axles shall not be less than the following:

	Weight (pounds)	Distance
Single axles	20,000	8′1″ minimum spacing*
2-axle tandem	38,000	3′6″ minimum spacing
3-axle tandem	42,000	3′6″ minimum spacing
4-axle tandem	50,000	3′6″ minimum spacing

 

*Any axle spaced less than ten feet from any other axle, measured between the centers of the nearest axles, is considered part of an axle group.

Any axle that may be elevated from the roadway, thus transferring its portion of the vehicle weight to the other axles, shall not be considered as a load-carrying axle unless the vehicle is equipped with an approved tell-tale device. The tell-tale device shall indicate the lift axle is in full load-carrying position and shall be clearly visible from the left side of the vehicle under normal operating conditions.

3.

The weight on a tire located on a steering axle of a power vehicle shall not exceed 600 pounds per inch of tire width based on the tire manufacturer's rating of tire width. The weight on any other tire shall not exceed 550 pounds per inch of tire width based on the tire manufacturer's rating of tire width.

B.

The total combined weights of any two consecutive axles or axle groups may not exceed the values in Table I in section 9.46.100, based on the measured distance from the first axle in the first group to the last axle in the following group, and based on the number of axles included within the two consecutive groups.

(CAC 9.46.090; AO No. 78-72; AO No. 89-52; AO No. 2011-113(S), § 134, 11-22-11, eff. 12-22-11)

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