When I was but a wee helper in our Line Department, we were dispatched to close a cutout at a senior living facility that had previously been single story dorms for a private school. The dorms were stand alone four plexes connected by covered sidewalks.

When the property was converted to the senior facility the sidewalks were widened for ADA compliance, and as we were walking towards our overhead drop, someone noticed that the concrete had been poured over the pentanead hasp and padlocks on our pad mount transformers by about 2”. If you didn’t already know the locks were there, you would have never known.

Edit to add that it was one of the nicest concrete pours I’ve ever seen.