In the context of Type A soil slope rules, what does 'open less than 24 hours' indicate?

In the context of Type A soil slope rules, what does 'open less than 24 hours' indicate?

• A. The excavation is temporary
• B. The excavation is permanent
• C. The depth is greater than 12 feet
• D. The soil is Type B

Answer: (A)

Open less than 24 hours is about how long the excavation will be left exposed. When a trench or excavation is only temporary, it’s treated differently in the Type A soil slope rules because the exposure time isn’t long enough for soil conditions to change or weaken. So, this phrase indicates the work is a short-term opening, not a permanent one. If the opening were to stay open longer, the soil conditions and required slope protections could change. In short, the statement points to the excavation being temporary, rather than indicating depth or a different soil type.

Open less than 24 hours is about how long the excavation will be left exposed. When a trench or excavation is only temporary, it’s treated differently in the Type A soil slope rules because the exposure time isn’t long enough for soil conditions to change or weaken. So, this phrase indicates the work is a short-term opening, not a permanent one. If the opening were to stay open longer, the soil conditions and required slope protections could change.

In short, the statement points to the excavation being temporary, rather than indicating depth or a different soil type.