Washington § 49.24.260 - Requirements as to caissons.

Full text of Washington Revised Code of Washington § 49.24.260 — Requirements as to caissons., with citation guidance and answers to common questions.

§ 49.24.260. Requirements as to caissons.

All shafting used in pneumatic caissons shall be provided with ladders, which are to be kept clear and in good condition at all times. The distance between the centers of the rungs of a ladder shall not exceed fourteen inches and shall not vary more than one inch in any one piece of shafting. The length of the ladder rungs shall not be less than nine inches. The rungs of the ladder shall in no case be less than three inches from the wall or other obstruction in the shafting or opening in which the ladder shall be used. Under no circumstances shall a ladder inclining backward from the vertical be installed. A suitable ladder shall be provided from the top of all locks to the surface.
All man shafts shall be lighted at a distance of every ten feet with a guarded incandescent lamp.
All outside caisson air locks shall be provided with a platform not less than forty-two inches wide, and provided with a guardrail forty-two inches high.
All caissons in which fifteen or more men are employed shall have two locks, one of which shall be used as a man lock. Man locks and man shafts shall be in charge of a man whose duty it shall be to operate said lock and shaft. All caissons more than ten feet in diameter shall be provided with a separate man shaft, which shall be kept clear and in operating order at all times.
Locks shall be so located that the distance between the bottom door and water level shall be not less than three feet.
[ 1941 c 194 s 19; Rem. Supp. 1941 s 7666-27.]

Source: official Washington text · Last verified 2026-08-27

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Frequently Asked Questions About Washington § 49.24.260

What does Revised Code of Washington § 49.24.260 cover?

Section 49.24.260 ("Requirements as to caissons.") is part of the Revised Code of Washington, the codified statutory law of Washington. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Washington § 49.24.260?

A common citation format is "Revised Code of Washington § 49.24.260" (Washington). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Washington law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Washington official source linked on this page or consult a licensed Washington attorney.

How does Washington § 49.24.260 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Washington can advise on how this section applies to you. Contact your state or local bar association for a referral.

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