DESIGNING THE FUTURE BUILDING TRUST

Founded in 1995, IDC is a nationally recognized transportation engineering firm specializing in structural and civil design, as well as project management and construction management services for complex multi-modal infrastructure projects, with a proven track record in delivering exceptional engineering solutions for highways, transit, bridges, and more.

OUR MARKETS

  • Highways & Roads

  • Bridges

  • Rail Infrastructure

  • Transit & Urban Mass Transit Systems

  • Ports & Waterway Structures

OUR SERVICES

Our Services
Structural Engineering
Structural Engineering

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

Civil Engineering
Civil Engineering

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

PM/CM Services
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 PROJECTS

Our expertise encompasses the design, management, and execution of complex multi-modal facilities including highways, bridges, transit systems, and urban mass transit developments. Check out some of our featured projects and exciting developments!

Our Projects
California High-Speed Rail - Construction Packages 2-3
California High-Speed Rail - Construction Packages 2-3

Independent verification, validation, and PM/CM services for CHSR CP 2-3.

California High-Speed Rail, Design Build Packages 2-3
California High-Speed Rail, Design Build Packages 2-3

Cost-effective structural design support for CSHR DB 2-3.

LA Metro Link Union Station
LA Metro Link Union Station

Structural design and coordination for Los Angeles Union Station transformation project.

LA Metro Sepulveda Transit Corridor Project (STC)
LA Metro Sepulveda Transit Corridor Project (STC)

Structural design and project coordination for Sepulveda Transit Corridor.

North Spring Street Viaduct Over Los Angeles River & Metrolink Tracks
North Spring Street Viaduct Over Los Angeles River & Metrolink Tracks

Widening and seismic upgrade of the historical arch bridge over the Los Angeles River.

Higuera Bridge Over Ballona Creek Replacement
Higuera Bridge Over Ballona Creek Replacement

Bridge replacement and multimodal upgrades for Higuera Street Bridge.

Orange Street Bridge Over Plunge Creek
Orange Street Bridge Over Plunge Creek

Replacement of a two-lane bridge with a new four-lane bridge with multimodal facilities in Highland, CA.

Glendale Boulevard-Hyperion Avenue Complex of Bridges Over I-5, Los Angeles River, Los Angeles River Bikeway
Glendale Boulevard-Hyperion Avenue Complex of Bridges Over I-5, Los Angeles River, Los Angeles River Bikeway

Rehabilitation and enhancement of the Glendale Boulevard-Hyperion Avenue Bridges complex, including multimodal infrastructure improvements.

Pennsylvania Avenue Grade Separation
Pennsylvania Avenue Grade Separation

Construction of a grade separation to lower Pennsylvania Avenue under UPRR tracks for improved safety and mobility.

South Fontana ADA Ramps Improvement Project
South Fontana ADA Ramps Improvement Project

ADA-compliant ramp and sidewalk improvements in South Fontana.

OUR TEAM

At IDC, our strength lies in our talented and diverse team of professionals who bring a wealth of knowledge and creativity to every project. This rich mix of backgrounds and expertise allows us to tackle even the most complex challenges in engineering intricate structures and overseeing the full spectrum of transportation project management. Nationally recognized for our excellence, IDC has earned numerous awards for our comprehensive engineering design and project and construction management services.