Benton County requires a barrier around residential pools, spas, and hot tubs under Washington's building code: at least a 48-inch fence with self-closing, self-latching gates, to prevent child drownings.
Under the Washington-adopted building codes enforced by Benton County, any residential swimming pool, spa, or hot tub needs a surrounding barrier. The fence must be at least 48 inches high, with no gaps a four-inch sphere can pass through and no easy footholds a child could climb. Gates must swing away from the pool and be self-closing and self-latching, with the latch mounted high out of a child's reach. A house wall can form part of the barrier only if doors leading to the pool have alarms or self-closing hardware. Compliance is checked at the pool permit inspection.
A pool without a compliant barrier fails inspection and cannot be filled or used until corrected. Beyond code penalties, an unfenced pool is a serious drowning and liability hazard.
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See how Benton County's pool barriers rules stack up against other locations.
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