Does Benton County, WA have its own construction hours ordinance?

No. Benton County, WA does not appear to have a local construction hours ordinance, Washington state law applies instead. The rules summarized on this page come from Revised Code of Washington.

Key Facts Ordinance Text Full Breakdown Violations FAQ Sources More in Benton County

Benton County, WA Noise Ordinances: Construction Hours (2026)

Some Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Construction hours in Benton County, WA, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.

Key Facts

Daytime: Exempt while working
Night limit: No exemption 10 p.m.-7 a.m.
State rule: WAC 173-60-050
City limits: Cities set own hours

Summary

Construction noise in unincorporated Benton County is exempt from WAC 173-60 limits while work is underway, but that exemption disappears in residential areas between 10 p.m. and 7 a.m., which effectively sets nighttime quiet.

These county ordinances apply to unincorporated areas of Benton County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Sounds originating from temporary construction sites as a result of construction activity.

Source: Revised Code of WashingtonView official code

Full Breakdown

Washington doesn't hand counties a fixed 7 a.m. start rule; instead WAC 173-60-050 exempts temporary construction-site noise from the environmental noise ceiling, except in Class A residential areas overnight. So a contractor grading a lot near West Richland or framing a home in Badger Canyon can run equipment loud by day, but noise reaching a residence between 10 p.m. and 7 a.m. loses the exemption and becomes actionable. Benton County's building permits govern the work itself, not the hours. Kennewick, Richland, and Prosser add their own construction-hour limits within city limits, and subdivision covenants often tighten them further.

Violations & Fines

Nighttime construction noise reaching residential property loses its WAC 173-60-050 exemption and can draw a Sheriff response and nuisance enforcement under BCC 6A.15, including abatement orders.

Frequently Asked Questions

Can I run construction equipment early on unincorporated land?

Yes. WAC 173-60-050 exempts active construction noise by day. The exemption drops in residential areas between 10 p.m. and 7 a.m., so avoid overnight work near homes.

Do county permits restrict work hours?

Benton County building permits regulate the construction, not the time of day. Hour limits come from the state noise exemption's overnight cutoff, city codes, or HOA covenants.

Sources & Official References

[1]Revised Code of Washington

Other rules in Benton County

Quiet HoursSome Restrictions Barking DogsSome Restrictions Decibel LimitsSome Restrictions Amplified Music & Outdoor SoundSome Restrictions Parking Rules: EV ChargingFew Restrictions Fence Regulations: Material RestrictionsSome Restrictions Fence Regulations: Fence Permit RequirementsSome Restrictions Animal Ordinances: Pet Groomer RulesFew Restrictions Animal Ordinances: Veterinary Clinic ZoningSignificant Restrictions Fire Regulations: FireworksSignificant Restrictions

All Benton County rules

How Benton County compares: Cities with the Strictest Construction Hours·Compare Benton County to another location·View the Washington noise ordinances overview

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Construction Hours in Cities Across Benton County

Kennewick, WA