25 feet.
29 CFR 1926.651 (C)(2) MEANS OF EGRESS FROM TRENCH EXCAVATIONS A stairway, ladder, ramp or other safe means of egress (exit) shall be located in trench excavations that are 4 feet or more in depth so as to require no more than 25 feet of lateral travel for employees.
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When a trench is 4 feet or more in depth a means of egress?
Means of egress from trench excavations. A stairway, ladder, ramp or other safe means of egress shall be located in trench excavations that are 4 feet (1.22 m) or more in depth so as to require no more than 25 feet (7.62 m) of lateral travel for employees.
feet of anyone in the trench?
OSHA standards require safe access and egress to all excavations, including ladders, steps, ramps or other safe means of exit for employees working in trench excavations four feet or deeper. These devices must be located within 25 feet of all workers.
When working in a trench over four feet deep there must be a ladder located every?
OSHA standards require safe access and egress to all excavations, including ladders, steps, ramps, or other safe means of exit for employees working in trench excavations 4 feet (1.22 meters) or deeper. These devices must be located within 25 feet (7.6 meters) of all workers.
How do you access and egress the pit trench if it is more than 1.2 meter?
If the trench is 4 feet (1.2Mt) or more deep it should be provided with standard ladder to facilitate safe entry and exit. 6.2. 3. The Sides of trenches in hard or compact soil, including embankments, shall be shored or otherwise supported when the trench is more than 5 feet (1.5Mt) in depth.
What is the maximum distance allowed between ladders used for ingress/egress of trench?
Ingress and Egress
1. Trenches four (4) feet or more in depth shall be provided with a fixed means of egress. 2. Spacing between ladders or other means of egress must be such that a worker will not have to travel more than twenty-five (25) feet laterally to the nearest means on egress, 3.
What is the maximum allowed spacing between ladders in a trench that is 120 feet long?
Employees should not have to crawl or climb out of trenches regardless if they are healthy and capable of doing it. There may come a time when due to a trench collapse / failure that they will need an emergency exit. Because of such emergencies, OSHA has set 25 feet as the maximum distance to the nearest ladder.
What is the 5 foot rule excavation?
Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.
What is the maximum allowable slope for an excavation less than 20 feet in a Type B soil?
1:1
B-1.2 Excavations Made in Type B Soil
1. All simple slope excavations 20 feet or less in depth shall have a maximum allowable slope of 1:1. 3.
How far does a ladder need to extend past the landing on a trench or excavation?
The ladder must extend at least 3′ above the top of the trench and be placed on firm ground within the trench. A ladder must be provided every 25 feet of lateral travel.
At what height do you need a ladder in a trench?
The Excavation Standard requires a ladder or other means of access and egress when the trench is 4 feet or more.
How far should ladders extend from the bottom of a trench?
3 feet
People working in a trench box must have access to a ladder or other means of egress. The ladder must be secured and located within 25 lateral feet of all workers, and it must extend beyond the top of the trench by 3 feet.
What is the minimum height above the side of the trench that a trench box wall should extend?
18 inches
Specifically, the trench shield extends 18 inches (0.45 m) above the vertical part of the walls, but is below the top of the trench. Therefore, where the top of the shield is below grade, it must extend a minimum of 18 inches above the vertical part of the wall.
When excavating to depths of 1.2 m or more what three methods are used to prevent cave-ins?
What are the different types of protective systems used to protect against cave-ins? There are two basic methods of protecting workers against cave-ins: Sloping. Temporary protective structures (e.g., shoring, trench boxes, pre-fabricated systems, hydraulic systems, engineering systems, etc.)
Why is 1.2 meter excavation confined space?
What is the 1.2m excavation rule? The 1.2m rule for trenches used to be in older health and safety regulations and is often still quoted today. The basis of the rule is that, if a trench is under 1.2m deep, then people can enter the trench without the sides of the excavation being supported or battered back.
What is required for excavation more than 1.2 m deep?
Where ever the depth of excavation is more than 1.2 meters shall be treated as confined space because of restricted means of ingress & egress and that is also not designed for normal occupancy. Obtain a confined space permit and fulfill its requirements.
How far apart should access egress ladders be in excavations?
25 ft.
Spacing between ladders or other means of egress must be such that a worker will not have to travel more than 25 ft. laterally to the nearest means of egress. Ladders must be secured and extend a minimum of 36 in (0.9 m) above the landing.
What is the minimum distance a 10 foot scaffold plank should extend over its supports if it is not cleated or otherwise restrained from movement?
Unless planks are nailed or otherwise restrained from movement, the overlap must be at least… 12 inches.
Should every excavation be provided with a safe means of ingress and egress that is kept available at all times?
Every excavation shall be provided with at least one safe means of ingress and egress that is kept available at all times.
What must be spaced at intervals no more than 4 feet apart on cages?
Horizontal bands must be spaced at intervals not more than 4 feet (1.2 m) apart measured from centerline to centerline. Vertical bars must be on the inside of the horizontal bands and must be fastened to them.
Is required when the top of the ladder is more than 24 feet above the lower elevation?
If the fixed ladder will reach more than 24 feet above a lower level, you as the employer are required to incorporate a personal fall arrest or ladder safety system into the installation of the ladder. (This requirement is cited in OSHA Section 1910.28(b)(9)(i).)