[Governor Dinwiddie]

When someone wants to secure a heavy piece of steel, normally one uses strong bolts.

[ansel12]

I’ve lifted a lot of manhole covers, they don’t normally bolt them, the weight and design keeps them in place.

I wonder if NYC has some bad road/manhole maintenance.

[Freedom_Is_Not_Free]

That this was an almost unique freak incident with a truck dislodging a manhole cover, explains why manholes covers are not bolted down.

It is like a 1 in a million or 1 in 10 million chance of happening. It is almost unheard of for a manhole cover that is correctly fit and in place to just get bounced out of its supports.

I guess bolting them down woujld prevent that 1 in a million tragedy like this lady, but it does validly explain why they aren’t bolted down. There is typically no need. Typically.