Spokane enforces a 20-foot vision clearance triangle at street intersections under SMC 17C.110.240. Fences, hedges, and vegetation over 3 feet tall are prohibited in this triangle.
SMC 17C.110.240 establishes a vision clearance area at all street intersections. The triangle is measured 20 feet back from the point where the property lines intersect along each street. Within this triangle, fences, walls, hedges, shrubs, and any obstruction between 3 feet and 8 feet above the grade are prohibited so drivers have clear sightlines. Tree trunks are allowed if limbs below 8 feet are pruned. Corner lot owners commonly get violation notices for overgrown junipers or wooden fences installed right to the corner. Driveway vision triangles (15 feet at the driveway-street intersection) apply as well.
Notice to prune or remove obstruction. Failure to comply is 100 to 500 dollars and city may remove the obstruction at owner expense.
See how Spokane's fence requirements rules stack up against other locations.
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