What we do

Engineering the structures that move California.

Structural and civil design plus full project and construction management — one firm across every phase, from PA/ED through construction.

Our services

Structural, civil, and management, end to end.

Structural and civil design plus full project and construction management — one firm across every phase, from PA/ED through construction.

01

Structural Engineering

Highway and railroad bridge engineering, including interchanges, viaducts, river crossings, and pedestrian bridges.

02

Civil Engineering

Civil engineering for local agencies and global engineering firms, spanning various project phases, including PA/ED, PS&E, and Construction.

03

PM/CM Services

Project/program and construction management services for local agencies, focusing on transportation projects across California, covering all phases, including PA/ED, PS&E, and Construction.

Our markets

The infrastructure we engineer.

1995
Designing California structures since
100+
Bridge projects delivered
$10B+
Multimodal infrastructure built
DBE · WBE
Certified, woman-owned firm
Get in touch

Let's work together.

Ready to learn more about IDC? Let's work together to transform your vision into reality.