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State of Washington Classified Job Specification


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Class Code: 596T
Category: Maintenance Trades & Labor


Supervises one or more highway maintenance crews performing maintenance work for a specific section of highway;




Supervises one or more specialty crews with a full-time region or area-wide assignment.

Distinguishing Characteristics

Maintenance crews working in a specific section of highway consisting of several sub-sections of highway, perform a variety of highway maintenance tasks such as operating heavy equipment to maintain and/or repair highways, repairing guardrails and guardrail posts, repairing highway signs and clearing the highway of debris.


Specialty crews with a full-time region or area-wide assignment primarily perform work in a specialty area such as thermoplastics, striping, vegetation mitigation, or homeless encampment clean up. 


Positions in this class supervise one or more Highway Maintenance Worker 3 or Highway Maintenance Worker 4 positions.


This level is distinguished from the Highway Maintenance Worker 3 by the responsibility for several sub-sections of highway, which comprise one section. This level is distinguished from the Highway Maintenance Worker 4 by the responsibility to work independently rather than in an assistant role.

Typical Work

Plans, budgets, schedules and supervises highway maintenance crews engaged in specialized maintenance, repair and reconstruction of highway features including: 

  • Highway maintenance, asphalt paving and patching;
  • Repairing bridge ends and concrete surfaces;
  • Rebuilding and reshaping shoulders;
  • Drainage maintenance; ditching and slide removal;
  • Repairing flood damage, cleaning and replacing culverts, catch basins and bulkheads, cleaning sedimentation basins and oil water separators, placing riprap on dikes, bridges, river and stream banks;
  • Vegetation management; tree and brush removal, pesticide application, maintaining wetlands;
  • Rest area maintenance;
  • Snow and ice control;
  • Highway safety features; guardrail and impact attenuator repair, sign replacement, pavement striping and marking; and
  • Drilling and shooting rock, stumps, and beaver dams.


Recommends actions related to employment, promotion, demotion, transfer or discharge, or adjudication of grievances affecting subordinates; 


Uses computer in the development of the annual maintenance plan including fund availability and staffing requirements, and to prepare records and reports pertaining to work accomplished and expenditures, reporting of personnel and accident information; 


Arranges for the purchase of repair or replacement parts; 


Communicates and coordinates with police and fire departments during emergency situations on a 24-hour basis; 


Meets with the general public, public agencies or community organizations in order to promote or maintain favorable public relations; 


Reviews permit and franchise applications, recommends requirement and approval, inspects all permit and franchise work; 


Reviews highway location and construction plans, attends plan and review and preconstruction conferences, reviews construction work in progress and completed projects; 


Directs, supervises and is charged with the security, maintenance and proper use of plant facilities, motor vehicle equipment, tools, materials, and supplies; 


Directs and is responsible for the acquisition of materials and supplies and maintains an inventory of all consumables; 


Arranges rental or lease of privately owned equipment; 


Performs traffic control duties; 


Patrols assigned section or sections, inspects for illegal right-of-way encroachment, highway safety, maintenance needs, and signing to ensure quality as set forth by state standards and specifications; 


Prioritizes and assigns work to Highway Maintenance Worker 3s and/or Highway Maintenance Worker 4s and crews, schedules equipment and materials as needed; 


Conducts crew safety and training meetings to ensure safe work practices and compliance with new regulations including confined space, fall restraint and traffic control; 


Plans lay out of shrub beds and lawn area; placement of trees and liners; 


Develops and monitors an annual vegetation management program, makes recommendation on proper pesticide application, purchasing and inventory of pesticides, preparing and maintaining records and reports of applications; 


Applies best management practices as they pertain to environmental and wildlife issues; 


Responds to emergencies 24 hours a day; 


May operate highway equipment in the case of an emergency;


Performs other related work as required.

Knowledge and Abilities

Knowledge of: planning and managing a budget, safety standards, construction industry standards, basic computer knowledge, and heavy equipment operation.


Ability to: travel to various locations; communicate orally and in writing to a variety of audiences; effectively supervise others; read and understanding plans, calculate volumes, percentages, applications rates and solve basic mathematic equations; plan and follow fiscal and biennial budgets; train others in the repair and installation of highway safety features.

Legal Requirement(s)

There may be instances where individual positions must have additional licenses or certifications. Some positions require a Commercial Driver’s License (CDL).


Positions for Incident Response teams must obtain fingerprint card and successfully pass an FBI background check prior to performing incident response duties in an authorized emergency vehicle.

Desirable Qualifications

Two years of experience as a Highway Maintenance Worker 3 or equivalent, or one year of experience as a Highway Maintenance Worker 4.

Class Specification History

Revise class. Revises minimum qualifications; adopted December 6, 1971.
Revise class. Revises title (formerly Highway Maintenance Foreman), general revision; adopted September 7, 1973.
Revise class. Revises class code (formerly 7069) Highway Maintenance Class Study adopted; July 1, 1975.
Revise class. Revises definition, distinguishing characteristics, minimum qualifications; adopted September 12, 1980.
Revised definition, distinguishing characteristics, minimum qualifications adopted November 9, 1984.
Revise class. Revises minimum qualifications; adopted October 13, 1989.
Revise class. Revises minimum qualifications adopted April 10, 1992.
Revise class. General revision, revises desirable qualifications; adopted May 10, 2007, effective July 1, 2007.
Base range salary adjustment adopted 6/30/2017, effective 7/1/2017.
Revise title (formerly Maintenance Supervisor), definition, distinguishing characteristics, typical work, legal requirements and desirable qualifications; added knowledge and abilities; adopted June 13, 2019, effective July 1, 2019.