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WAC 296-155-66409
Appendix E—Alternatives to timber shoring.
Appendix E to part N - Alternatives to Timber Shoring
Figure N-23, Aluminum Hydraulic Shoring
Figure N-24, Pneumatic/hydraulic Shoring
Figure N-25, Trench Jacks (Screw Jacks)
Figure N-26, Trench Shields
[Statutory Authority: Chapter
49.17
RCW and RCW
49.17.040
, [49.17].050 and [49.17].060. WSR 92-22-067 (Order 92-06), § 296-155-66409, filed 10/30/92, effective 12/8/92.]
