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 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.

Triad/Holmes Associates (THA) has been providing a comprehensive range of civil engineering, land surveying and mapping services for over 30 years. We have extensive experience with commercial, residential, institutional and public works projects.


Our Services

CIVIL ENGINEERING

 
LAND SURVEYING

  • Construction Phase Services
  • Cost Estimating
  • Erosion Control Plans
  • Feasibility Studies
  • Grading and Drainage Designs & Plans
  • Improvement Plans
  • Permit Coordination
  • Project Development and Entitlement Assistance
  • Roadway Designs
  • Septic System Designs and Plans
  • Site Planning and Mapping
  • Storm Water Pollution Prevention Plans (SWPPP)
  • Subdivision Designs
  • Utility Plans
  • Water, Sewer, and Storm Drainage Studies and Design
 
  • Boundary Surveys
  • Topographic Surveys
  • Subdivision Maps
  • Parcel Maps
  • Legal Descriptions
  • Elevation/Forms/Slab Certificates
  • Flood/FEMA Certificates
  • Building Location Survey
  • Condominium Maps
  • Title Insurance Surveys (ALTA)
  • Lot Line Adjustments
  • Construction Staking Surveys
  • Monitoring & Deformation Surveys
  • Control Networks
  • Precise Leveling
  • Aerial Mapping & Photography
  • Specialty Surveys

 

JUNIPER SPRINGS LODGE - Mammoth Lakes, CA
POSEY/WEBSTER TUBE - Oakland, CA
 

Contact our offices in the Eastern Sierra, the San Francisco Bay Area, the Central Coast, or the Napa Valley and start benefiting
from our broad experience and excellent reputation.

We look forward to hearing from you.

 

Civil Engineers 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.
HOME
ABOUT US
PROFESSIONAL SERVICES
PROJECTS PHOTO GALLERY CAREERS CONTACT US

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