Cofferdams.

(1) If overtopping of the cofferdam by high waters is possible, you must provide means for controlled flooding of the work area.
(2) You must develop and post signals for evacuation of employees in case of emergency.
(3) You must provide cofferdam walkways, bridges, or ramps with at least two means of rapid exit and guardrails as specified in Part C-1 of this chapter.
(4) You must install manways and ladderways separately from the hoistways and partitioned off to prevent hoisted materials from protruding into or falling into manways and/or ladderways.
(5) Pumping equipment must be located on substantially constructed platforms and where installed in such a position that persons must work below, toe boards must be installed on the platform.
(6) You must protect cofferdams located close to navigable shipping channels from vessels in transit, where possible.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 16-09-085, § 296-155-740, filed 4/19/16, effective 5/20/16. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and 29 C.F.R. 1926, Subpart M, Fall Protection. WSR 13-04-073, § 296-155-740, filed 2/4/13, effective 4/1/13. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. WSR 96-24-051, § 296-155-740, filed 11/27/96, effective 2/1/97. Statutory Authority: Chapter 49.17 RCW. WSR 95-10-016, § 296-155-740, filed 4/25/95, effective 10/1/95; Order 74-26, § 296-155-740, filed 5/7/74, effective 6/6/74.]
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