Highway Maintenance Supervisor pay range
State of Washington · class code 596T
- Class code
- 596T
- Salary range
- 55E
- Pay unit
- Year
- State
- Washington
- The State of Washington published pay range for Highway Maintenance Supervisor is $69,348 to $84,528 per year.
- Washington State Office of Financial Management (OFM) keys this classification as class code 596T.
- This is the range the plan authorises, not the salary of any individual employee.
Step progression
Washington State Office of Financial Management (OFM) assigns this class to salary range 55E in the General Service Salary Schedule. The range pays 9 steps, and this class starts at step E rather than at the bottom of the range; a step is normally earned on a periodic increment date, not negotiated.
| Basis | E | F | G | H | I | J | K | L | M |
|---|---|---|---|---|---|---|---|---|---|
| Annual | $69,348 | $71,136 | $72,900 | $74,748 | $76,608 | $78,504 | $80,496 | $82,440 | $84,528 |
| Monthly | $5,779 | $5,928 | $6,075 | $6,229 | $6,384 | $6,542 | $6,708 | $6,870 | $7,044 |
| Hourly | $33.21 | $34.07 | $34.91 | $35.80 | $36.69 | $37.60 | $38.55 | $39.48 | $40.48 |
Steps as published. The monthly and hourly rows are the state's own, not conversions of the annual row.
Class specification
The OFM classified job specification for this class is published by Washington State Office of Financial Management (OFM). The passages below are quoted from it as published, not paraphrased, and cut to their opening sentences; the full specification is the authority on duties and qualifications.
What the state says the job is
Supervises one or more highway maintenance crews performing maintenance work for a specific section of highway; OR Supervises one or more specialty crews with a full-time region or area-wide assignment.
Examples of the 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 ...
Minimum qualifications
Two years of experience as a Highway Maintenance Worker 3 or equivalent, or one year of experience as a Highway Maintenance Worker 4.
Quoted from the OFM classified job specification, read 2026-10-21.
Where this comes from
Washington State Office of Financial Management (OFM) publishes this figure in Classified Job Listing joined to the OFM salary schedules effective July 1, 2026. Every number on this page is read from that document; nothing is estimated, modelled or averaged.
The dollar figures come from the salary schedule the listing assigns this range to.
Nearby classes in Washington
Highway Maintenance Supervisor in other states
| State | Minimum | Maximum | Per year at full time |
|---|---|---|---|
| Iowa | $73,674 | $113,464 | $73,674 to $113,464 |
| Nebraska | $28.46 | $42.66 | $59,193 to $88,724 |
Each state publishes its own range for a classification with this exact title. Duties, grade structures and bargaining units differ between states, so read each class page before comparing.