Soil Types
The four soil types
What is Type A, B, C and Stable Rock?
The soil type you cannot bench.
What is type C soil?
Ladders must extend how far above the surface.
What is 3 feet?
Number to call for utility location
The tests completed by a competent person
What is a visual and manual?
The depth that a protective system is required.
The depth access/egress methods are requirement.
What is 4 feet?
Minimum distance to stay away from overhead utilities
This person tests the soil.
What is a competent person?
The four protective systems.
What is sloping, shoring, benching, shielding?
Spoil Piles must sit back this far from the edge of the excavation.
What is 2 feet?
Color code for electric markings.
What is Red?
Two common manual testing methods
What is thumb penetration and pocket penetrometer?
Trench boxes should be secured to prevent this.
What is lateral movement?
Paperwork needed when using a trench box.
Distance of horizontal space for a tolerance zone.
What is 18" on either side?
Type C soil is made up of this.
What is granular soils, including sand, gravel, etc?
Trench Boxes should stick up this far if material is present.
What is a minimum of 18"?
Competent person is responsible for completing this every day.
What is a daily excavation checklist?
Most common damage to utilities.
What is locating practices?