Is a 1:1 slope commonly used in temporary excavation as per OSHA regulation?

A 1:1 slope refers to a slope that rises one unit vertically for every one unit of horizontal distance. According to OSHA regulations, a 1:1 slope is indeed an acceptable practice for temporary excavations less than 20 feet deep, as it provides a stable and less risky environment for workers. This type of slope is often used because it reduces the risk of soil collapse and is easier for workers to navigate safely.

OSHA encourages the use of such slopes in temporary excavation to ensure that safety measures are met while also considering the practicality of excavation work. A slope of this ratio is often easier to construct and maintain compared to steeper slopes, making it a favored option in compliance with safety regulations.