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PDFWAC 296-79-110

Elevated runways and ramps used by vehicles.

(1) Runways and ramps must:
(a) Be cleated, grooved, rough surfaced, or covered with a material that will minimize the danger of skidding; and
(b) Not have a maximum incline exceeding 20° from horizontal if used for wheeled equipment.
(2) Guarding exposed sides.
(a) Elevated ramps or runways used for the travel of wheeled equipment must have exposed sides guarded with a substantial bull rail or shear rail of sufficient height to prevent wheeled equipment from going over the rail.
(b) If elevated ramps or runways are used by pedestrians, standard guardrails must be installed on runways wherever the height exceeds 4 feet above the adjacent area except where used for loading or unloading purposes.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 17-16-132, § 296-79-110, filed 8/1/17, effective 9/1/17. Statutory Authority: RCW 49.17.010, [49.17].040 and [49.17].050. WSR 99-16-083, § 296-79-110, filed 8/3/99, effective 11/3/99; Order 74-24, § 296-79-110, filed 5/6/74; Order 70-6, § 296-79-110, filed 7/10/70, effective 8/10/70.]
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