Ladders or steps are used to enter trenches more than ________ deep

• A. 3 feet
• B. 4 feet
• C. 5 feet
• D. 6 feet

Answer: (B)

Access to trenches must have a safe way to get in and out. When a trench gets deep enough that climbing out from the bottom isn’t practical or safe, a ladder or steps are required to provide a secure exit. This rule is about preventing falls and making egress quick and reliable, so workers aren’t forced to scramble up unstable soil or slick walls. A proper ladder or set of steps gives a stable handhold, reduces fatigue during exit, and helps workers escape quickly in an emergency. If the trench is deeper still, additional protective measures like shoring or shielding are often used along with the access, but the key idea is that safe exit access is mandatory once the trench exceeds a shallow depth.