Electric infrastructure, end to end
From 500kV transmission backbone to the last-mile fiber beside it, Mammoth self-performs the work that keeps the grid running — and rebuilds it when storms strike.
Transmission
From 69kV subtransmission to 500kV EHV backbone, we build and rebuild the high-voltage lines that carry bulk power between substations and load centers. Our crews handle steel and wood structures, foundation work, stringing, and energized upgrades with disciplined safety planning.
Capabilities
- 69kV – 500kV overhead construction
- Lattice tower & steel monopole erection
- Conductor stringing & sagging
- Foundation drilling & setting
- Structure replacement & reconductoring
- Energized & de-energized work
Distribution
We design-build and maintain the overhead and underground distribution systems that bring electricity the last mile to homes, businesses, and critical facilities. Pole setting, framing, transformer installation, and system hardening — done right the first time.
Capabilities
- Overhead & underground distribution
- Pole setting, framing & transfers
- Transformer & recloser installation
- URD trenching & boring
- System hardening & reliability upgrades
- Joint-use make-ready
Telecom
Powerlines and communications lines share the same corridors — and we build both. From aerial fiber and strand to underground conduit and broadband make-ready, our crews extend high-capacity connectivity alongside the electric grid.
Capabilities
- Aerial fiber & strand placement
- Underground conduit & vault installation
- Broadband make-ready engineering
- OSP construction & splicing coordination
- Small-cell & 5G support structures
- Pole audits & attachments
Storm Restoration
When hurricanes, ice, and severe weather knock out power, Mammoth crews mobilize fast. We deploy nationwide for utility mutual-aid, working around the clock to safely rebuild damaged lines and restore power to the communities that depend on it.
Capabilities
- 24/7 emergency mobilization
- Utility mutual-aid partnerships
- Damage assessment & triage
- Full crew, fleet & material logistics
- Hurricane & ice-storm restoration
- Nationwide deployment
A disciplined path to energized
Scope & estimate
We walk the corridor, review engineering, and deliver a clear, competitive bid.
Plan & mobilize
Safety planning, materials, and crew logistics locked before boots hit the ground.
Build safely
Disciplined daily execution with energized-work expertise and zero-incident intent.
Energize & close out
Commissioning, cleanup, and documentation — the job done right, the first time.
Tell us what you need built.
Send us your scope — transmission, distribution, telecom, or storm work — and we'll get you a clear, competitive bid.