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Civil Engineers & Land Surveyors offering civil engineering and land surveying services in California. Triad/Holmes have professional consulting engineers in Mammoth Lakes, Bishop, Redwood City, Napa, San Luis Obispo, Lompoc, and Pleasanton, California.
   
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CIVIL ENGINEERING

THA provides a comprehensive range of civil engineering services. We have extensive experience with commercial, residential, and public works projects. Our services include:

  • Construction Phase Services
  • Cost Estimating
  • Erosion Control Plans
  • Feasibility Studies
  • Grading Design
  • Permit Coordination
  • Project Development and Entitlement Assistance
  • Roadway Design
  • Site Planning and Mapping
  • Storm Water Pollution Prevention Plans (SWPPP)
  • QSD/QSP Services
  • Water, Sewer, and Storm Drainage Studies and Design


LAND SURVEYING AND MAPPING

THA’s land surveying experience is very diverse. Projects have ranged from high rise urban surveys to Sierra Nevada back country locations. They have included sectional retracements right-of-way surveys, easements, encroachments, A.L.T.A. surveys, single-family lot surveys, major commercial/industrial design surveys, and heavy construction. Our services include:

  • Aerial Mapping Products
  • Aerial Photography
  • Boundary Surveys (cadastral)
  • Construction Staking
  • Control Networks
  • Digital Orthophotography
  • Digital Terrain Modeling
  • Land Title Research
  • Lot Line Adjustments
  • Monitoring & Deformation Surveys
  • Precise Leveling
  • Subdivision Maps
  • Title Insurance Surveys
  • Topographic Surveys


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