equipment that could pose a hazard by falling or rolling Page 16 Occupational Safety and Health Administration 1 0 inside the excavation by placing and keeping such materials or equipment at least 2 feet (0.61 meters) from the edge and/or by using a retaining device to keep the materials or equipment from falling or ...
How far from the edge of an excavation must you keep materials?
Keep excavated soil (spoils) and other materials at least 2 feet (0.6 meters) from trench edges. Know where underground utilities are located before digging. Test for atmospheric hazards such as low oxygen, hazardous fumes and toxic gases when > 4 feet deep.
What is the distance that tools and equipment must be kept from the edge of a trench?
Store all materials, tools, and equipment at least two feet away from the edge of the excavation.
What is the minimum safe distance to keep excavated from trenches?
Keep excavated soil (spoils) and other materials at least 2 feet (0.6 meters) from trench edges. Know where underground utilities are located before digging. Test for atmospheric hazards such as low oxygen, hazardous fumes and toxic gases when > 4 feet deep. Inspect trenches at the start of each shift.
Where should excavated materials be stored?
All material excavated from trenches and piled adjacent to the trench or in any street pursuant to work under this Chapter shall be piled and maintained in such manner as not to endanger those working in the trench, pedestrians or users of the streets and so that as little inconvenience as possible is caused to those ...
What is the safest way of entering and exiting a deep excavation?
OSHA requires employers to provide ladders, steps, ramps, or other safe means of egress for workers working in trench excavations 4 feet (1.22 meters) or deeper. ... Employers must ensure that any worker who enters a bell- bottom pier hole or similar deep and confined footing excavation wears a harness with a lifeline.
At what depth is a trench considered a confined space?
In the United States, any pit or trench with a depth equal to or greater than 4 feet is classified as a permit-required confined space.
When a trench is 4 feet or more in depth?
In trenches that are 4 feet or more in depth, provide a means of access and egress . Spacing between ladders, stairs or ramps should not be more than 50 feet. No worker should have to travel more than 25 feet laterally to reach a means of egress (exit). Ladders must be secured and extend 36 inches above the landing.
How deep can you dig without a trench box?
How Deep Can a Trench Be Without Shoring? Trenches with a depth of 5 feet (1.5 meters) or greater need a protective system unless the entire excavation is in stable rock. If there is anything less than 5 feet, it is up to a competent person’s discretion to determine if there is a need for a protective system.
When digging a trench a gas line hit can lead to an explosion?
– A gas line hit can lead to an explosion. – A broken water line can fill a trench in seconds. – Contact with buried power cables can kill. Safety Tip: Always your local utility locating service such as 811 before you dig, and get the utilities marked.
What can you do with excavated material?
For example, excavated materials may be removed to another location to make way for road construction . However, excavated materials may also be used in the building of the roadway, such as to build embankments.
How do you store materials?
Store materials and supplies in an organized manner to ensure easy access for retrieval and transportation . Place heavier loads on lower or middle shelves. Store long, tall or top-heavy items on their side or secure them to prevent tipover.
When archaeologists dig a site What is it called?
In archaeology, excavation is the exposure, processing and recording of archaeological remains. An excavation site or “dig” is the area being studied. ... During excavation, archaeologists often use stratigraphic excavation to remove phases of the site one layer at a time.
What are 2 measures that could be used to prevent ground collapse when excavating?
- Move extra excavation materials at least 2 feet away from the trench.
- If there isn’t room, remove the materials from the site.
- Remove personnel from the edge of the trench who are not working on it.
- Keep all equipment away from the site to prevent cave-ins and blunt force trauma.
What is benching in excavation?
“Benching (Benching system)” means a method of protecting employees from cave-ins by excavating the sides of an excavation to form one or a series of horizontal levels or steps , usually with vertical or near-vertical surfaces between levels.
