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WACs > Title 296 > Chapter 296-155 > Section 296-155-697
296-155-695
296-155-699
No agency filings affecting this section since 2003
WAC 296-155-697
Requirements for masonry construction.
(1) A limited access zone shall be established whenever a masonry wall is being constructed. The limited access zone shall conform to the following:
(2) The limited access zone shall be established prior to the start of construction of the wall.
(3) The limited access zone shall be equal to the height of the wall to be constructed plus four feet, and shall run the entire length of the wall.
(4) The limited access zone shall be established on the side of the wall which will be unscaffolded.
(5) The limited access zone shall be restricted to entry by employees actively engaged in constructing the wall. No other employees shall be permitted to enter the zone.
(6) The limited access zone shall remain in place until the wall is adequately supported to prevent overturning and to prevent collapse unless the height of wall is over eight feet, in which case, the limited access zone shall remain in place until the requirements of subsection (7) of this section have been met.
(7) All masonry walls over eight feet in height shall be adequately braced to prevent overturning and to prevent collapse unless the wall is adequately supported so that it will not overturn or collapse. The bracing shall remain in place until permanent supporting elements of the structure are in place.
(8) Employees engaged in cutting or chipping shall wear suitable eye protection in accordance with WAC 296-155-215.
(9) Masonry saws shall be constructed, guarded and operated in accordance with WAC 296-155-367 (1) through (4).
(10) Persons charged with operation of derricks used for stone setting shall be qualified in that type of work.
(11) Stone shall be set directly on the wall by the derrick.
(12) Breast derricks when used in setting stone shall be secured against a slip or kick back and guyed with wire cables. Provide hold down line to prevent derrick from falling back.
(13) Stone cutters shall wear goggles while trimming stone or cutting holes.
(14) Pins shall be tested for security before stone is hoisted.
(15) Hoisting cables shall be protected from chafing and wearing over corners.
(16) Mason's mortar mixers shall have a bar-type grill installed over the mixer opening. The guard shall be installed with an automatic disconnect switch to stop the mixer tub rotation and prevent the mixer from starting whenever the guard is not in place.
[Statutory Authority: Chapter 49.17 RCW. WSR 90-17-051 (Order 90-10), § 296-155-697, filed 8/13/90, effective 9/24/90; WSR 90-03-029 (Order 89-20), § 296-155-697, filed 1/11/90, effective 2/26/90; WSR 89-11-035 (Order 89-03), § 296-155-697, filed 5/15/89, effective 6/30/89.]
