Sam O. Hirota, Inc.

Leaders in Quality Civil Engineering, Land Surveying, and 3D Laser Scanning

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About the firm

Sam O. Hirota, Inc. (SOH) is a Honolulu-based consulting engineering and surveying practice founded in 1963. For more than 60 years, SOH has delivered civil engineering, land surveying, and 3D laser scanning projects across Hawaii, the Trust Territories, and the South Pacific for federal, state, and local government clients as well as private-sector owners. SOH integrates full-color 3D digital documentation with proven land surveying and civil engineering practice, and has completed over 2,000 surveying and mapping projects in the past decade.

Established
1963
Firm type
Civil Engineering · Land Surveying

Capabilities

Civil Engineering

Service website
  • Site master planning and analysis
  • Flood and drainage studies
  • FEMA LOMR permitting and approvals
  • NPDES permitting and approvals
  • Erosion control and stormwater management
  • Water supply, distribution, and transmission systems
  • Wastewater systems and pump stations
  • Roads, access drives, curbs, and sidewalks
  • Traffic control planning and parking design
  • Anti-terrorism force protection and physical security
  • Environmental assessment and EIS support

Land Surveying

Service website
  • ALTA/NSPS Land Title surveys
  • Boundary surveys
  • Topographic surveys
  • Aerial LiDAR and photogrammetry
  • Precision digital leveling
  • FEMA Elevation Certification
  • Cadastral mapping and legal description writing
  • Hydrographic surveying
  • Shoreline certification

3D Laser Scanning / 3D Imaging

  • Full-color digital documentation and 3D modeling
  • Historical property documentation
  • Industrial and government facility scanning
  • Rockfall remediation analysis
  • 3D city scanning

Industries

Government · Federal · Defense · Education · Residential · Historic Preservation · Infrastructure · Transportation · Land Development

Projects

US Army Boundary Studies

Hawaii · Defense

Project details

Boundary surveys covering up to 124,000 acres of US Army installations across Hawaii.

3D City Scanning - Honolulu

Honolulu, HI

Project details

3D capture of Honolulu featured as a case study by Veesus, a 3D visualization platform, highlighting an outstanding application of its software.

Hawaii State Art Museum Documentation

Honolulu, HI · Arts & Culture

Project details

Laser scan of a wing of the Hawaii State Art Museum for full-color digital documentation.

Hanahauoli School

Honolulu, HI · Education

Sam O. Hirota, Inc. - Engineering Firms