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(a) When dredge discharge pipe lines are used as walkways, they shall be provided with a flat surface walkway at least 12 inches wide, anchored to the pipe line to prevent displacement. A railing providing at least a single rail or taut rope 42 to 45 inches high shall be provided along one side. When rope is used, it shall be at least as strong as 3/4-inch diameter Manila or at least 3/8-inch diameter wire rope, or equivalent.
(b) Catwalks or platforms shall be at least 20 inches wide with railings provided at all locations over bodies of water more than 4 feet deep. Plank for such use at those locations subject to immersion shall be rough sawn and treated to resist rot. Railings shall be installed in accordance with the provisions of Section 1620.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
HISTORY
1. Amendment of subsection (a) filed 9-9-85; effective thirtieth day thereafter (Register 85, No. 37).
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