Welcome to Okahara and Associates Inc.

We are a locally grown engineering firm dedicated to supporting and sustaining our community here in Hawai'i and beyond.


Okahara and Associates
About Our Firm

Established in 1979, our roots go back to the Plantation Era where we designed mechanical equipment for sugar mills.

With the decline of sugar, we began designing HVAC, plumbing, municipal pump stations and fuel systems.

In the mid-80’s, we added Civil engineering services that include infrastructure and land development design, making our company what it is today.



Bruce K. Meyers P.E.

Senior Civil Engineer

Mr. Meyers is a licensed Civil Engineer with over 30 years of Civil planning, design and construction support experience.

Tyson T. Toyama, P.E.

Executive Vice President
Senior Mechanical Engineer

Mr. Toyama is a licensed Mechanical Engineer with over 22 years of design experience

Charles L. Jury, P.E.

Vice President
Senior Civil Engineer

Mr. Jury is a licensed Civil engineer with over 13 years of experience.

Key Staff Members

Terrance I. Nago, P.E.

Senior Associate
Senior Civil & Mechanical Engineer
Mr. Nago is a licensed Mechanical and Civil engineer with over 33 years of experience.

Lennie L.T. Okano-Kendrick, P.E.

Senior Associate
Senior Civil Engineer

Ms. Okano-Kendrick is a licensed Civil engineer with over 19 years of experience.

Andrew R. Petersen, P.E.

Senior Associate
Senior Mechanical Engineer

Mr. Petersen is a licensed Mechanical engineer with over 12 years of experience.

Irvin T. Higashi

Senior Associate
Landscape Architect

Mr. Higashi is a licensed landscape architect with over 37 years of experience.

Joel S. Nakamoto, P.E.

Senior Associate
Senior Civil Engineer

Mr. Nakamoto is a licensed Civil engineer with over 22 years of experience.

Our Services

Civil Engineering

Site work Design
Subdivision Design
Highway Design
Water System Design
Wastewater System Design
Hydrologic/Hydraulic Design
Watershed Study 

Mechanical Engineering

Pump Station Designs
HVAC System Design
Plumbing System Design
Fuel System Design
Energy Efficiency Design

Landscape Architecture

Landscape Design
Irrigation Design
Landscape Lighting Design
Landscape Construction Management and Consultation
ISA Certified Arborist Consultation
NRPA Certified Playground Safety Inspector

We are a Small Business firm.

We look forward to helping you with your next project.

Contact us now to learn what we can do for you.

Hilo Office

200 Kohola Street
Hilo HI, 96720
Phone: 808-961-5527
Fax: 808-961-5529
Office Hours: 7am – 5pm

Honolulu Office

677 Ala Moana Blvd
Suite 703
Honolulu HI, 96813
Phone: 808-524-1224
Fax: 808-521-3151
Office Hours: 7am – 5pm