OAR 437-007-0505: Bridges

(1) All bridge structures and surfaces must be: (a) Adequate to support the maximum imposed loads. (b) Maintained in good repair. (2) All bridges must have rub rails constructed of wood, concrete or equivalent materials that: (a) Have a minimum height of 9 inches (6-inch by 6-inch timbers set on 4-inch by 6-inch blocks). (b) Are secured to the bridge deck.