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State of Washington Classified Job Specification


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Class Code: 618U
Category: Maintenance Trades & Labor


Supervise heavy equipment operators, utility/maintenance workers, and other employees in the operation and maintenance of construction and earth moving equipment and the installation, maintenance, and alteration of plant facilities.

Typical Work

Supervise heavy equipment operators, utility workers, and others engaged in the operation of trucks, tractors, powered cranes, shovels, bulldozers, snow plows, graders and similar equipment; 

Read plans and blueprints; inspect maintenance and installation projects; determine scope of work, materials needed, and their cost and availability; assist in the development of departmental budget; 

Select, train, and evaluate employees; participate in employee discipline; enforce safety rules and regulations; 

Plan work, assign tasks, maintain efficiency of construction crew; 

Operate heavy equipment and train residents in operation and maintenance of this equipment; 

Use explosives to blow stumps, rocks, or other obstructions and train others in safe explosives handling and use.

Knowledge and Abilities

Knowledge of: rules of safe operation of equipment; state motor vehicle laws; materials used in servicing and maintaining heavy equipment; rules governing operation of state vehicles; methods, tools, and materials used in servicing and maintaining heavy equipment. 

Ability to: operate heavy construction equipment in safe and skillful manner; make adjustments and repairs to equipment; follow oral and written instructions; keep simple records; work to grade.

Legal Requirement(s)

There may be instances where individual positions must have additional licenses or certification.  It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position.

Persons legally authorized to work in the U.S. under federal law, including Deferred Action for Childhood Arrivals recipients, are eligible for employment unless prohibited by other state or federal law.

Desirable Qualifications

Positions typically require two years of full-time experience as a journey heavy equipment operator or equivalent work in street and road construction, maintenance, and repair; including one year of full-time experience as a lead, or equivalent; or, two years of experience as a supervisor on heavy construction projects; or, four years of experience in the operation of a variety of heavy construction equipment including heavy bulldozers, power shovels, drag lines or similar equipment. Possession of a valid motor vehicle operator's license may be required.  

Equivalent education/experience will substitute for all minimum qualifications except when there are legal requirements, such as a license/certification/registration.

Class Specification History

Revise class. Revises class code (formerly 618K), general revision; adopted May 10, 2007, effective July 1, 2007.
(03/05/2009) Removed incorrect language from Typical Work section.

Revise class title (formerly Heavy Equipment Operator Supervisor) and definition; adopted August 11, 2011, effective August 12, 2011.

Revised Legal Requirements; effective June 6, 2024, due to adopted legislative action.