Purpose: This proposal amends the WAC 468-38-270, previously titled "Construction equipment," by expanding the rule to cover all specialized equipment as defined by the Federal Highway Administration and the Washington State Department of Transportation. The new rule adopts federal rule for specialized equipment used on the interstate. The rule also addresses those vehicles that, due to their unique design and use, exceed legal weight and/or dimension and must have an oversize/overweight permit for intrastate operation.
Citation of Existing Rules Affected by this Order: Amending WAC 468-38-270.
Statutory Authority for Adoption: RCW 46.44.090.
Other Authority: HB 1180 passed by the 2005 legislature.
Adopted under notice filed as WSR 05-08-016 on March 28, 2005.
Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 1, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 1, Repealed 0.
Number of Sections Adopted at Request of a Nongovernmental Entity: New 0, Amended 0, Repealed 0.
Number of Sections Adopted on the Agency's Own Initiative: New 0, Amended 1, Repealed 0.
Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 1, Repealed 0.
Number of Sections Adopted Using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 0, Amended 0, Repealed 0.
Date Adopted: May 13, 2005.
John F. Conrad
Engineering and Regional Operations
AMENDATORY SECTION(Amending Order 31, Resolution No. 156, filed 8/20/82)
WAC 468-38-270 ((
Construction)) Specialized mobile
(( Pursuant to RCW 46.44.091(3), permits may be
issued to move equipment on approved highways whose single
axle weight is not more than 45,000 pounds if operating on
single pneumatic tires having a rim width of 20 inches or more
and a rim diameter of 24 inches or more. If the vehicle has
dual pneumatic tires, the rim width shall be at least 16
inches and the rim diameter shall be at least 24 inches.)) (1)
Why are certain vehicles designated as specialized mobile
equipment? Certain vehicles are designed and built for very
unique functions other than transporting persons. The federal
highway administration has classified some of these vehicles
as specialized mobile equipment and set minimum and/or maximum
parameters for the vehicle to operate legally. The department
has adopted these specialized classifications and accepted or
further defined the legal parameters for operation on state
highways. In addition to federal rule, the department has
also recognized certain specially designed vehicles that, by
necessity, exceed one or more of the vehicle size and weight
parameters. The department has also classified these
over-legal vehicles as specialized mobile equipment in order
to address their needs, via special permit, and provide a
consistent administrative and enforcement treatment. This
rule is not intended to encourage the development of vehicles
that exceed the legal requirements of chapter 46.44 RCW. All
vehicles exceeding legal requirements are subject to
restricted access to the state highway network.
(2) What specialized equipment, including size parameters, can operate legally without a special permit? Listed in alphabetical order:
Automobile transporter: To be considered an automobile transporter, the power unit and the trailing unit must be modified to carry assembled automobiles. If the combination consists of a truck and stinger-steered trailing unit, the overall dimension for length can be up to seventy-five feet, plus a front overhang of three feet and rear overhang of four feet. A combination of tractor semi-trailer (traditional high mount) may have an overall dimension for length of sixty-five feet, plus three-foot front overhang and four-foot rear overhang.
Boat transporter: See automobile transporter.
Munitions carriers with dromedary equipment: A truck tractor equipped with a dromedary unit operating in combination with a semi-trailer transporting Class 1 explosives and/or any munitions related security material, as specified by the U.S. Department of Defense in compliance with 49 CFR 177.835, may have an overall dimension for length up to seventy-five feet.
(3) What specialized equipment, including size and weight parameters, can operate with special permit? Listed in alphabetical order:
Concrete pumper trucks: As a single unit fixed load vehicle, may exceed the legal weight limits up to the maximums established in RCW 46.44.091. Tire loading for the movement is limited to the lesser of six hundred pounds per inch width of tire or the tire manufacturer's rating with proper inflation, as determined by the nomenclature imprinted on the tire. Included with the fixed load are pumper hose extensions and a necessary volume of water to flush the system at the job site when the pumping process is complete.
Construction equipment: Equipment used primarily for off-road heavy construction activity may be permitted for use on designated highway segments up to the maximums established in RCW 46.44.091 when properly equipped for highway operation per chapter 46.37 RCW. Equipment delivered to a construction site may operate without permit on highway segments designated as part of the construction zone.
Cranes: As a single unit fixed load vehicle, may exceed the legal weight limits up to the maximums established in RCW 46.44.091. Tire loading for the movement is limited to the lesser of six hundred pounds per inch width of tire or the tire manufacturer's rating with proper inflation, as determined by the nomenclature imprinted on the tire. Cranes may be permitted with standard working components that are included within the rated capacity of the crane. A boom trailer or boom dolly will be permitted only when the boom is attached to the crane upper works, for the purpose of transferring load to meet weight requirements. A crane may be permitted with counterweights, outrigger assemblies, load block, hook and cable tension ball assembly also loaded on the boom trailer or boom dolly, as long as those components are included in the rated capacity of the crane and do not cause the vehicle to exceed permitted weight limits.
Well drilling trucks: As a single unit fixed load vehicle, may exceed the legal weight limits up to the maximums established in RCW 46.44.091. Tire loading for the movement is limited to the lesser of six hundred pounds per inch width of tire or the tire manufacturer's rating with proper inflation, as determined by the nomenclature imprinted on the tire. In addition to the fixed load, the vehicle may carry drill extensions.
(4) Can specialized mobile equipment tow a licensed vehicle used for commute purposes? A specialized self-propelled single unit vehicle registered as a fixed load, operating under a fixed load permit, and/or cranes operating under an oversize/overweight permit (exclusive of boom dollies or trailers), may be permitted to tow a vehicle with a gross vehicle weight rating not to exceed eight thousand pounds. The overall length of the combination must not exceed seventy-five feet. The towed vehicle must be used for the sole purpose of commuting to and from the job site where the specialized mobile equipment is in service.
(5) Does a specialized mobile vehicle operating under an overweight or fixed load permit receive any exemption from postings or restrictions placed on highway infrastructure? No. Specialized mobile equipment must not cross load-restricted infrastructure when the equipment, either as a result of gross weight, axle weight or tire loadings, exceeds the stated capacity of the posting or restriction.
[Statutory Authority: RCW 46.44.090. 82-18-010 (Order 31, Resolution No. 156), § 468-38-270, filed 8/20/82. Formerly WAC 468-38-380. Statutory Authority: 1977 ex.s. c 151. 79-01-033 (DOT Order 10 and Comm. Order 1, Resolution No. 13), § 468-38-270, filed 12/20/78. Formerly WAC 252-24-336.]