Underground & heavy civil work in Tucson — we own the iron and the crews that run it
Underground utility work is on the critical path of nearly every site. We self-perform trenching, duct banks, and utility installation with an owned Cat® equipment fleet and certified operators — so the dirt work never waits on a subcontractor's calendar.
This work is performed under our Arizona ROC KA Dual Engineering license (#312437). See the full A– General Engineering scope it carries, including A-17 Electrical and Transmission Lines for right-of-way and utility-side work.
Underground Capabilities
From open trench to backfill and restoration
Trenching & Excavation
Open-cut trenching, mass excavation, and precision digging for utilities, foundations, and site infrastructure.
Duct Banks & Conduit
Concrete-encased duct banks, multi-way conduit runs, and pull-box / vault installation for primary distribution.
Primary & Secondary Utility
Underground electrical distribution, transformer pads, switchgear foundations, and utility tie-ins.
Wet Utilities & Coordination
Coordination of water, sewer, and storm crossings with electrical and communication pathways.
Site Preparation & Grading
Clearing, rough and fine grading, pad preparation, and compaction for building and equipment areas.
Backfill & Restoration
Engineered backfill, compaction testing coordination, and surface restoration to spec.
Equipment Fleet
An owned Cat® fleet, ready to mobilize
Owning our equipment means we control availability, maintenance, and cost. No waiting on rental yards, no markup on someone else's machine — the right unit shows up when the schedule calls for it.
| Equipment Class | Typical Use | On Site For |
|---|---|---|
| Excavators | Trenching, mass excavation, duct bank dig | Utility installation, foundations |
| Wheel & Skid-Steer Loaders | Material handling, backfill, site cleanup | Earthwork, grading support |
| Backhoe Loaders | Versatile dig / load on tight sites | Utility tie-ins, spot excavation |
| Dozers | Grading, pushing, pad preparation | Site prep, rough grading |
| Compactors & Rollers | Trench and pad compaction | Backfill, subgrade |
| Trenchers & Support Equipment | Continuous trench, dewatering, hauling | Linear utility runs |
Fleet composition scales to project size. Equipment classes shown are representative of typical mobilization.
Why It Matters
The schedule advantage of self-performing dirt
When the underground scope is subbed out, the general contractor inherits a coordination problem: the trench has to be open when the electrical crew is ready, and backfilled before the next trade arrives. We solve that by running both crews ourselves.
Our operators and our electricians work from the same schedule, the same submittals, and the same project manager.
See how it ties to electrical- Equipment availability we control, not a rental yard
- Operators and electricians on one coordinated schedule
- No sub-to-sub hand-off between trench and conduit
- Single accountability for the underground scope
- Maintained fleet — fewer breakdowns, fewer delays
- Cost certainty without third-party markup
Our Work
Underground & trenching in the field
Self-performed trenching and underground utility work with our owned Cat® equipment fleet — on commercial sites and in the street.
Conduit & Duct Bank
Operated Safely
Underground work, done by the book
Locate & Verify
Utility locating and potholing before the bucket breaks ground.
Certified Operators
Trained, certified equipment operators on every machine.
Trench Safety
Shoring, sloping, and competent-person oversight on excavations.
FAQ
Trenching and underground questions, answered
Do you take trenching-only scopes for other contractors?
Yes. General contractors, utility contractors, and other electrical contractors regularly bring us in for the underground portion — trenching, duct banks, pads, backfill, and restoration — on their schedule. Our KA Dual Engineering license carries the heavy-civil scope that work falls under, and it is verifiable on the Arizona ROC's site.
How do you handle caliche and rock?
With equipment sized for it and production rates that reflect it. Trenching in Southern Arizona is not soil work, and a bid that assumes it is will turn into change orders. We own our excavation fleet, so heavier ground is a schedule and method question rather than a rental problem.
Do you call in utility locates?
Yes, and we pothole to verify before we dig. Existing utilities are rarely exactly where the drawings show them, and confirming by hand is far cheaper than finding out with a bucket.
How deep does underground conduit have to be?
It depends on the wiring method, the voltage, and what is above it — NEC Table 300.5 sets minimum cover, and utility and jurisdictional standards can require more. Our field team published a guide on installing underground conduit that walks through cover, expansion fittings, and backfill practice.
Do you restore asphalt and concrete when you're done?
Yes. Engineered backfill, compaction, and concrete or asphalt restoration are part of the scope, along with the right-of-way close-out the jurisdiction requires. See backfill & restoration.
Can you pull and terminate the conductors too?
Yes. We hold the CR-11 electrical license alongside the KA engineering license, so the same company can dig the trench, install the duct bank, pull the conductors, terminate the gear, and coordinate energization with the utility.
Got a site that needs to move dirt and power?
We'll mobilize the right equipment and crews to keep your underground scope off the critical path. See it done: the Historic Fourth Avenue kiosk project — trenching, conduit, and restoration in a live street.
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