They really aren’t that heavy. When I was little, maybe 5 or 6, me and my best friend went to a construction site (excavators and cranes, so cool), snuck around on there during off hours (probably super dangerous, but here I am) and took some metal hooks, made from that metal grid stuff they use often in construction.
We then went and opened the actual manhole covers in my backyard with them, and even climbed down there (not that interesting, basically a few meters deep, with a small open sewage line running at the bottom).
Long story short, two pre school boys could open them by themselves in the 90s
They really aren’t that heavy. When I was little, maybe 5 or 6, me and my best friend went to a construction site (excavators and cranes, so cool), snuck around on there during off hours (probably super dangerous, but here I am) and took some metal hooks, made from that metal grid stuff they use often in construction.
We then went and opened the actual manhole covers in my backyard with them, and even climbed down there (not that interesting, basically a few meters deep, with a small open sewage line running at the bottom).
Long story short, two pre school boys could open them by themselves in the 90s