Mirrormont Property Maintenance: Snow & Sidewalk Clearing Rules (2026)

Unlike some cities within King County (Seattle requires property owners to clear sidewalks of snow and ice within specified hours), unincorporated King County does not impose a legal duty on residents to clear snow and ice from public sidewalks abutting their property. The King County Road Services Division handles snow removal on county roads on a priority basis: arterial and primary roads first, then secondary roads; local residential streets receive lower priority and may not be plowed in light to moderate snowfalls. Road Services applies deicer (typically magnesium chloride brine or salt) on major routes as storms approach. For residents, sidewalk clearing is encouraged as a neighbor-friendly practice but is not enforced. However, Washington common law (premises liability under RCW 4.24) may still create civil exposure: property owners who create a more hazardous condition by their actions (for example, shoveling a path and letting meltwater refreeze) may face liability to an injured pedestrian. In incorporated cities like Seattle, Bellevue, Kirkland, and Redmond, local ordinances do require snow clearing, so residents should check their specific city code. For winter preparedness, King County Road Services issues storm advisories and publishes a snow and ice response plan showing priority routes. Residents are responsible for their own driveways and culverts.