§ 6.27. Runways and ramps.
(a) Planks and supports. Runways and ramps, where used in scaffold work, shall be substantially constructed and supported. Runways shall be composed of planks, each at least 10 inches in width. The minimum width of runways shall be 30 inches. They may be laid so that their edges abut, but in that case a wide, solid bearing shall be provided. When the planks overlap, the plank that runs from below shall be placed so that it laps over the one running from above. The planks of runways and ramps shall be securely nailed in position and the supports shall be well-braced.
(b) Inclines and cleats. The construction of runways and ramps at an incline greater than 1 foot rise in 3 feet is prohibited. Runways and ramps constructed at a greater incline than 1 foot rise in 6 feet shall be provided with cleats running crosswise and flush with the edges of the inclined platform. The cleats shall be of ample size, spaced not more than eight inches apart and securely fastened into position. They may be laid in sections across the platform so as to form a barrow track. Runways and ramps shall be kept free from snow and ice in the winter and, if necessary, treated with sand and ashes.
(c) Guardrails and toeboards. Where runways or ramps are more than 10 feet in height the outside edges at least shall be provided with guardrails and toeboards. Where such runways pass near deep holes, railroad tracks, high tension wires, mortar beds or similar dangerous places, guardrails and toeboards shall be provided on both sides of the runways or the dangerous points effectively guarded.
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