RCW 46.44.010 Outside width limit. The total outside width of any vehicle or load thereon must not exceed eight and one-half feet; except that an externally mounted rear vision mirror may extend beyond the width limits of the vehicle body to a point that allows the driver a view to the rear of the vehicle […]
RCW 46.44.013 Appurtenances on recreational vehicles. Motor homes, travel trailers, and campers may exceed the maximum width established under RCW 46.44.010 if the excess width is attributable to appurtenances that do not extend beyond the body of the vehicle by more than four inches, or if an awning, by more than six inches. As used […]
RCW 46.44.020 Maximum height—Impaired clearance signs. It is unlawful for any vehicle unladen or with load to exceed a height of fourteen feet above the level surface upon which the vehicle stands. This height limitation does not apply to authorized emergency vehicles or repair equipment of a public utility engaged in reasonably necessary operation. The […]
RCW 46.44.030 Maximum lengths. (1) It is unlawful for any person to operate upon the public highways of this state any vehicle having an overall length, with or without load, in excess of forty feet. This restriction does not apply to (a) a municipal transit vehicle, (b) auto stage, private carrier bus, school bus, travel […]
RCW 46.44.034 Maximum lengths—Front and rear protrusions. (1) The load, or any portion of any vehicle, operated alone upon the public highway of this state, or the load, or any portion of the front vehicle of a combination of vehicles, shall not extend more than three feet beyond the front wheels of such vehicle, or […]
RCW 46.44.036 Combination of units—Limitation. Except as provided in RCW 46.44.037, it is unlawful for any person to operate upon the public highways of this state any combination of vehicles consisting of more than two vehicles. For the purposes of this section a truck tractor-semitrailer or pole trailer combination will be considered as two vehicles […]
RCW 46.44.037 Combination of units—Lawful operations. Notwithstanding the provisions of RCW 46.44.036 and subject to such rules and regulations governing their operation as may be adopted by the state department of transportation, operation of the following combinations is lawful: (1) A combination consisting of a truck tractor, a semitrailer, and another semitrailer or a full […]
RCW 46.44.041 Maximum gross weights—Wheelbase and axle factors. No vehicle or combination of vehicles shall operate upon the public highways of this state with a gross load on any single axle in excess of twenty thousand pounds, or upon any group of axles in excess of that set forth in the following table, except that […]
RCW 46.44.042 Maximum gross weights—Axle and tire factors. Subject to the maximum gross weights specified in RCW 46.44.041, it is unlawful to operate any vehicle upon the public highways with a gross weight, including load, upon any tire concentrated upon the surface of the highway in excess of six hundred pounds per inch width of […]
RCW 46.44.043 Cement trucks—Axle loading controls. The switch that controls the raising and lowering of the retractable rear booster or tag axle on a ready-mix cement truck may be located within the reach of the driver’s compartment as long as the variable control, used to adjust axle loadings by regulating air pressure or by other […]
RCW 46.44.047 Excess weight—Logging trucks—Special permits—County or city permits—Fees—Discretion of arresting officer. A three axle truck tractor and a two axle pole trailer combination engaged in the operation of hauling logs may exceed by not more than six thousand eight hundred pounds the legal gross weight of the combination of vehicles when licensed, as permitted […]
RCW 46.44.049 Effect of weight on highways—Study authorized. The department of transportation may make and enter into agreements with the federal government or any state or group of states or agencies thereof, or any nonprofit association, on a joint or cooperative basis, to study, analyze, or test the effects of weight on highway construction. The […]
RCW 46.44.050 Minimum length of wheelbase. It shall be unlawful to operate any vehicle upon public highways with a wheelbase between any two axles thereof of less than three feet, six inches when weight exceeds that allowed for one axle under RCW 46.44.042 or 46.44.041. It shall be unlawful to operate any motor vehicle upon […]
RCW 46.44.060 Outside load limits for passenger vehicles. No passenger type vehicle shall be operated on any public highway with any load carried thereon extending beyond the line of the fenders on the left side of such vehicle nor extending more than six inches beyond the line of the fenders on the right side thereof. […]
RCW 46.44.070 Drawbar requirements—Trailer whipping or weaving—Towing flag. The drawbar or other connection between vehicles in combination shall be of sufficient strength to hold the weight of the towed vehicle on any grade where operated. No trailer shall whip, weave or oscillate or fail to follow substantially in the course of the towing vehicle. When […]
RCW 46.44.080 Local regulations—State highway regulations. Local authorities with respect to public highways under their jurisdiction may prohibit the operation thereon of motor trucks or other vehicles or may impose limits as to the weight thereof, or any other restrictions as may be deemed necessary, whenever any such public highway by reason of rain, snow, […]
RCW 46.44.090 Special permits for oversize or overweight movements. The department of transportation, pursuant to its rules with respect to state highways, and local authorities, with respect to public highways under their jurisdiction, may, upon application in writing and good cause being shown therefor, issue a special permit in writing, or electronically, authorizing the applicant […]
RCW 46.44.091 Special permits—Gross weight limit. (1) Except as otherwise provided in subsections (3) and (4) of this section, no special permit shall be issued for movement on any state highway or route of a state highway within the limits of any city or town where the gross weight, including load, exceeds the following limits: […]
RCW 46.44.0915 Heavy haul industrial corridors—Overweight sealed containers and vehicles. (1)(a) Except as provided in (b) and (c) of this subsection, the department of transportation, with respect to state highways maintained within port district property, may, at the request of a port commission, make and enter into agreements with port districts and adjacent jurisdictions or […]
RCW 46.44.092 Special permits—Overall width limits, exceptions—Application for permit. Special permits may not be issued for movements on any state highway outside the limits of any city or town in excess of the following widths: On two-lane highways, fourteen feet; On multiple-lane highways where a physical barrier serving as a median divider separates opposing traffic […]
