Manthos Engineering, LLC is a honolulu based
engineering consulting company established in 2003

We specialize in Civil and Geotechnical Engineering, Construction Management and Project
and Program Management. The firm combines the expertise of engineers and other professionals, experienced
in both the government and private sector in a dynamic and innovative environment.

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Our mobility, responsiveness and commitment to our clients has been demonstrated by the successful performance of our staff on past assignments.

Committed to delivering quality service

Manthos Engineering has built its reputation which is synonymous with quality and efficiency

We have expertise with a variety of different types of projects, including fast track, design-build, and federally-aided

Civil Engineering

Manthos Engineering has provided civil engineering design services for various types of projects.
Manthos Engineering has designed safety and guardrail improvements for highways in accordance with
State of Hawaii Department of Transportation and American Association of State Highway Officials requirements.

  • Planning and Program Projects

    Gentry Access Options Study and Cost Analysis, Waiawa, Oahu, HI

    American with Disabilities Act Monitoring & Advisory Services, Honolulu, HI

    Program Management Scope Definition for DLNR Boating Program, Honolulu, HI

  • Civil Engineering Projects

    Resurfacing of Parking lot of Waialua Elementary School, Oahu, HI

    North Pauahi Street Sidewalk and Accessibility (ADA) Route Reconstruction, Honolulu, HI

    Design of Guardrails and Entrance Gate at Ka Iwi Park, Honolulu, HI

  • Hydraulic Engineering Projects

    Replace Campus Water Lines at Kaala Elementary School

    Aina Haina Water System Improvements, Phase I, Honolulu, HI

    Kalaheo Avenue Reconstructed Sewer, Phase I, Kailua, HI

  • Geotechnical Engineering Projects

    Bank Stabilization and Stream Restoration for Maunalaha Stream, Makiki, HI

    Kuliouou Landslide, Honolulu, HI

  • Traffic Engineering Projects

    Aloha Nursing & Rehab Centre Traffic Study, Kaneohe, HI

    Petroleum Oil & Lubricants Pipeline Project, Hickam Air Force Base, HI

    Kaleakala National Park, Island of Hawaii, HI

  • Construction Management Projects

    Fort Weaver Road Widening Project, Ewa District, HI

    Honoapiilani Highway Resurfacing Project, Maui, HI

Connect with us


  • 808.531.7374

  • 875 Waimanu Street Suite 110, Honolulu, HI 96813