Saw it happen on a job not far from Bradenton last spring. Concrete trucks already lined up, trench cut, and nobody on site could give a straight answer on how deep the primary feed needed to sit. They poured anyway. Two weeks later we were back, breaking up fresh slab to drop the conduit to the right depth.
New reporting from Power Grid Model Input/Output points to a bigger shift in utility modeling tools. Power Grid Model Input/Output, “power-grid-model-io 1.3.68” shows how much detail goes into mapping feeders before anything gets buried. Skip that step on a commercial site and the cost shows up fast.
The honest truth is that most depth mistakes don’t come from the crew with the shovel. They come from somebody upstream signing off on a plan that never got verified against the actual utility drawing. Conduit depth, separation from other utilities, cover over the duct bank — all of it matters for inspection and for what happens five years later when somebody else digs nearby.
If you’re planning a buildout, get the underground utility install sequenced before the concrete crew shows up. If the project’s tied to a new construction timeline, the feed depth question gets answered first. Not after the pour.
Pour first, ask later. That’s how trenches get opened twice.
steelcityelectricfl.com/underground electrical
