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PDFWAC 296-155-810

Catch platforms.

(1) During the demolition of the exterior walls of a structure originally more than 70 feet high, you must erect catch platforms along the exterior faces of such walls where necessary to prevent injury to persons working below.
(2) You must construct and maintain such catch platforms not more than 3 stories below the story from which the exterior walls are being removed, until the demolition has progressed to within 3 stories of the ground level.
(3) Catch platforms must not be less than 5 feet in width measured in a horizontal distance from the face of the structure and constructed of outriggers and planks. You must lay planks tight together and without openings between the planks and the wall.
Catch platforms may be constructed of other approved materials of equal strength and security against falling material.
(4) Catch platforms must meet the strength and stability requirements of supported scaffolds in chapter 296-874 WAC.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and chapter 49.17 RCW. WSR 21-09-067, § 296-155-810, filed 4/20/21, effective 6/1/21. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 16-09-085, § 296-155-810, filed 4/19/16, effective 5/20/16; Order 74-26, § 296-155-810, filed 5/7/74, effective 6/6/74.]
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