O'Bunco Engineering International Inc.

Civil Engineering and Surveying Services.

Website

About the firm

Founded in 1997 in Bellevue, Washington, O'Bunco Engineering International Inc. (OEI) is a Pacific Northwest-based consortium delivering engineering, surveying, construction, architecture, and project management services. OEI combines over 25 years of regional experience with advanced technical capabilities to produce safe, efficient, and scalable infrastructure solutions. Landmark projects include the SR 520 Pontoon Construction, the Brightwater Treatment Plant, and the Howard Hanson Dam Safety Improvements. OEI maintains offices in Federal Way and Pasco, Washington, and Tualatin, Oregon.

Established
1997
Team
Small
Firm type
Architecture & Engineering · Civil Engineering · Environmental Engineering · Land Surveying · Transportation Engineering

People

Samuel ObunikePrincipal

Capabilities

Civil Engineering

Service website

OEI delivers site engineering solutions for municipal and land-development projects. The practice applies a client-focused approach to provide high-quality engineering services.

Surveying Services

Service website

OEI is licensed to practice surveying in both Washington and Oregon. The team includes four professional land surveyors (three in Washington and one in Oregon), providing a full range of surveying services with deep familiarity with regional standards and requirements.

Architectural Services

Service website

OEI integrates expertise in architecture, interior design, planning, restoration, graphic design, and urban design, grounded in a philosophy that balances historical context with a clear vision for the future.

  • Building Design
  • Interior Design
  • Planning
  • Restoration
  • Graphic Design
  • Urban Design

Construction Management

Service website

OEI brings a strong track record managing pipeline and infrastructure construction projects, guiding clients from the early design phase through bidding, construction, and contract closeout. Each project receives focused attention to communication, cost control, and quality management.

  • Pre-Construction & Design Support
  • Bidding & Procurement
  • Construction Administration
  • Contract Closeout

Traffic Engineering

Service website

OEI's staff and consulting partners have managed numerous traffic and transportation engineering projects, combining technical expertise with practical field experience to deliver effective transportation solutions.

Transit Facilities Planning & Design

Service website

Transit professionals plan and design facilities for agencies and municipalities. The work coordinates proven planning capabilities with regional transit goals.

Environmental Monitoring & Remediation

Service website

A multidisciplinary team of engineers, geologists, and environmental scientists delivers comprehensive monitoring and remediation services, drawing on experience from regulatory agencies, private consulting, and industry sectors.

  • Environmental Monitoring
  • Remediation Services

Industries

Government · Transportation · Transit · Rail · Wastewater · Water Supply · Education · Healthcare · Commercial · Sports & Recreation

Projects

Sound Transit Commuter Rail Station Platform Feasibility Study

Tacoma, Puyallup, Sumner, Auburn, Kent, Tukwila, Seattle, and Everett, WA · Transit · Client: Sound Transit

Project details

Prime Consultant for a feasibility study of removable platforms at eight commuter rail stations: Tacoma Dome, Puyallup, Sumner, Auburn, Kent, Tukwila, King Street, and Everett.

South Tacoma Commuter Rail Station

Tacoma / Tukwila, WA · Rail

Project details

Sub-consultant to URS delivering constructability review during final design and field inspection for at-grade and aerial light rail facilities extending from Martin Luther King Blvd South and Boeing Access Road to an interim terminus at South 154th St and International Blvd in Tukwila.

SR 520 Pontoon Construction

Aberdeen and Port of Tacoma, WA · Transportation

Project details

Engineering support for pontoon construction at Aberdeen and the Port of Tacoma for the SR 520 project.

Brightwater Treatment Plant

King County, WA · Wastewater · Client: King County

Project details

Provided services on King County's largest infrastructure project, the Brightwater regional wastewater treatment facility.