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Sonoma Underground is lead by a management team second to none. Targeted experience with utility construction, including but not limited to, design, protection, relocation, placement and maintenance of plant makes us the professionals of choice. Sonoma’s management team has an aggressive, yet safe approach, willing to try new products and procedures while utilizing the knowledge and experience of proven methods giving our Clients the most cost effective options. Sonoma’s in-house “Quality Control Program” assures that the work is performed 100% to our Client’s expectations and specifications.

  • Cable placement
  • Conduit Placement
  • MH placement
  • Cast-in- place structures
  • Duct bank construction
  • Long haul metro buildings
  • Building entrances
  • Project management
  • Solid Rock Drilling
  • Riverbed crossing
  • FAA Infrastructures
  • Runway status Lighting
  • Communication
  • Power
  • Up to a 48” bore
  • Multiple product placement or single casing
  • Communication
  • Power
  • Excavation within Congested Urban ROW’s
  • Conventional Production trenching
  • Deep/ shored excavation
  • Sloped/ bench excavation Maintenance
  • Small asphalt restoration including grinding and stripping
  • Concrete surface restoration
  • Concrete foundations
  • Concrete structures
  • Site work
  • Site Utilities
  • Specialty Foundations
  • Commercial
  • Industrial
  • Infrastructure
  • Aviation
  • Boring mud control
  • Potholing/ trenching