Washington Statutes
§ 49.24.130 — Air chambers—Hanging walks.
Washington § 49.24.130
This text of Washington § 49.24.130 (Air chambers—Hanging walks.) is published on Counsel Stack Legal Research, covering Washington primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.
Bluebook
Wash. Rev. Code § 49.24.130 (2026).
Text
(1)Whenever the air pressure in a tunnel heading exceeds twenty-one pounds per square inch above atmospheric pressure, two air chambers shall always be in use, except for such time as may be necessary when headings are being started from shafts; and whenever practicable the pressure in the outer chamber shall not exceed one-half the pressure in the heading;
(2)In all tunnels sixteen feet in diameter or over, hanging walks shall be provided from working face to nearest lock. An overhead clearance of six feet shall be maintained and suitable ramps provided under all safety screens.
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Legislative History
[1941 c 194 s 6; Rem. Supp. 1941 s 7666-14.]
Nearby Sections
15
§ 49.04.030
Supervisor of apprenticeship—Duties.§ 49.04.050
Apprenticeship program standards.§ 49.04.060
Apprenticeship agreements.§ 49.04.065
Decisions of apprenticeship council—Appeal to director of labor and industries—Judicial appeal.§ 49.04.070
Limitation.§ 49.04.141
Transportation opportunities—Report.Cite This Page — Counsel Stack
Bluebook (online)
Washington § 49.24.130, Counsel Stack Legal Research, https://law.counselstack.com/statute/wa/49.24.130.