Leimert Bridge Seismic Retrofit
2026 | Oakland, CA | Bridges
Seismic retrofit and historic restoration of the historic Leimert Bridge in Oakland, California.
Directory
Public engineering firm profile
Biggs Cardosa Associates, Inc.
Reshaping California's infrastructure through innovative structural engineering and design
- Services
- 10
- Projects
- 8
- Leaders
- 19
- Size Estimate
- 100+ employees
Overview
Biggs Cardosa Associates, Inc. is a leading, award-winning California structural engineering practice providing structural design, consulting, project management, and construction management services. For over 35 years, it has reshaped California highways, skylines, and infrastructure through innovative design of bridges, transportation structures, buildings, and hydraulic facilities. The practice specializes in structural design, seismic retrofit, modification, and rehabilitation, delivering high-quality, cost-effective, and dependable engineering solutions.
- Size Estimate
- 100+ employees
Services
Structural Engineering
Comprehensive structural design, seismic analysis, and evaluation for infrastructure and building systems.
Project and Construction Management
Project coordination, construction oversight, and management services to ensure successful project execution.
Consulting and Inspection
Expert engineering consulting and structural inspections to support asset maintenance and compliance.
Industries
Firm type
Projects
Union Road Bridge Replacement
2026 | San Benito County, CA | Bridges
Replacement of the Union Road Bridge in San Benito County to improve regional transportation infrastructure.
Rosecrans/Marquardt Grade Separation
2025 | Santa Fe Springs, CA | Highways & Roads
Award-winning grade separation project resolving a critical rail and highway crossing conflict.
Foster City Levee Improvements Project
2024 | Foster City, CA | Stormwater & Flood Control
Multi-award-winning environmental and structural improvement of the Foster City levee system.
South Bayfront Pedestrian Bicycle Bridge & Horton Landing Park
2024 | Emeryville, CA | Parks & Open Space
Award-winning active transportation pedestrian and bicycle overcrossing bridge and public park facility.
Gerald Desmond Bridge Replacement Project
2024 | Long Beach, CA | Bridges
Major span bridge replacement providing critical freight and commuter access in Long Beach.
Mineta San Jose International Airport ARFF Fire Station 20
2023 | San Jose, CA | Airports
Design and construction of the critical airport rescue and firefighting facility in San Jose.
Psychosocial Rehabilitation Recovery Center Building at the VA Martinez Campus
2022 | Martinez, CA | Healthcare
Award-winning healthcare facility construction providing specialized medical rehabilitation space.
Credentials and affiliations
Leadership
Roy Schnabel
Managing Principal
PE
Daniel Devlin
Principal
PE, SE
Mahvash Harms
Principal
PE, SE
Kathleen Dillon
Principal
PE, SE
Ron Oen
Principal
PE
Eric Pheifer
Principal
PE
Tom Swayze
Principal
PE, SE
Michael Thomas
Principal Emeritus
PE, SE
John Alciati
Associate
PE
Raj Bharil
Associate
PhD, PE, SE, PMP
Tom Densford
Associate
PE
Sikandar Hayat
Associate
Dan Lazzarini
Associate
PE, SE
Ines Li
Associate
PE
Anthony Notaro
Associate
PE
Anthony Richardson
Associate
PE
Shaun Sumpter
Associate
PE, SE
Stephen Biggs
Principal Emeritus
PE, SE
Mark Cardosa
Principal Emeritus
PE, SE
Offices
No public values listed.