WAC 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.

     (b) Not have a maximum incline exceeding 20° from horizontal if used for wheeled equipment.

     (2) Guarding exposed sides.

     • 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.

     • 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 and[49.17].050 . 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.]