I did a project at Marshal Space Flight Center on one of the first test stands built there. The original drawings had conduit locations and elevations marked specifically on the drawings.
Well were kinda on the same page when it comes to the space program we worked for Chrome elec. and Behee & Umholts electric back when the space program was hot and we had the funds . Yes the engineers there give you a plan and route most power plants give you a route and elevations but commercial work does not ?
We worked on pad 39 lots of times in 1969 thur 1970s refits and new work underground conduits duct banks rigid shc 180 6 inch lots of fun .

PAD 39 CLICK ON IT !
Heres a launch from that pad from titusville about 5 miles out the local folks know were iam talking about its the best place to be just watch out for the gators !
Were not aloud to take pictures there but the pad is mine the other launch one is just a copy of that pad .Very high security there my camera was in my tester cover !