Trench Safety Reports for depths greater than 20' 2

[oengineer]

I have a trench that is greater than 20 ft and I am trying to provide a trench safety report that supports going deeper. Does anyone know of a document that might be helpful for this? Is there an example somewhere?

 

[JedClampett]

Disclaimer; I've never used this, but I've kept it in my references just for your question. Try the CALTRANS Trenching and Shoring Manual.

 

[Okiryu]

You can look also at OSHA Trenching and Excavation.

 

[PEinc]

I believe that for a trench greater than 20 feet deep, you need an engineered sheeting design or a slope stability analysis both signed and stamped by a PE.

http://www.PeirceEngineering.com

 

[oengineer]

Thank you all