During manhole inspection, which action is recommended?

• A. Do not remove rust from lid and ring
• B. Inspect the manhole cover for cracks
• C. Ignore elevation checks
• D. Do not inspect ring for cracks or debris

Answer: (B)

The main safety concern is the integrity of the cover itself. Inspecting the manhole cover for cracks is the best action because cracks can compromise the lid’s ability to bear loads and seal against sewer gases and water entry. A cracked cover can fail under traffic or a worker’s weight, creating a serious fall and exposure hazard. Detecting cracks early allows replacement or repair before opening the manhole.

The other options miss the immediate safety risk. Removing rust from the lid and ring doesn’t address potential cracks that threaten structural safety, ignoring elevation checks bypasses important seating and alignment checks, and not inspecting the ring for cracks or debris can hide issues that affect how the cover seats and seals.