We were back at the high priced condos last week. Installing a 120' long 60" CMP detention structure. Space was tight..:cool2
Digging between the 3 phase power transformer and finished building. Had roughly 6-8" on either side of the hoe.
The electrical room for the building is on the right. The transformer is hot and so is the building. I forgot how many volts the sparky told us is going through the underground conduits but it's enough to get your attention.
During the early stages of the project we discussed the depth the conduits needed to be in order to not conflict with the detention system. The conduit was installed roughly 10' below FF.
To make matters even more interesting there were two ground cables coming out of the electrical room tied to ground rods. The footing extended 1' past the face of brick so we had to cover them and be very careful not to damage or snag them with the excavator.
You might be asking - "Why did you wait to put it in?". The reason it wasn't put in during initial site prep. is the amount or lack of, cover over the pipe. For construction loading (lulls, man lifts) there needs to be 3' of cover over the pipe. Design grades call for 8-12" of final cover so we had to wait.
The area will just be landscaped with no vehicular traffic.
Loading the rock box with the '53.