Spoils must be kept how far away from trench edges?
2 feet
What is the depth that of a trench that requires employees to be protected from a cave ins?
5 feet and >
1926.652(a)(1)(ii)
The slope requirement for an excavation in Class B soil is?
What is 1:1=1 foot horizontal for every 1 foot vertical?
These are the four classifications for soil.
What are Stable Rock, Class A, Class B, Class C?
This number must be called at least 2-3 days prior to any digging to let them know you will be working underground?
What is 811?
These pose the greatest risk and are more likely to result in a worker fatality in regards to an excavation accident?
What are Cave ins?
Soil classifications are made on the basis of any of these tests.
What are the Plasticity Test, Dry Strength Test, Thumb Penetration Test, and Pocket Penetrometer?
Trenches how many feet deep in loose soils, requires a protective system?
What is 5 feet?
1926.652(a)(1)(ii)
When on the subject of trenching and excavation. 2,200 lb. is the weight of this.
What is one cubic yard of earth?
The slope requirement for an excavation in Class C soil is this.
What is 1 1/2:1= 1 1/2 feet horizontal to every 1 foot vertical?
What is the pile of soil removed from an excavation called?
What is a spoil