We use cookies to make OHLA
USA's website a better place.
Cookies help to provide a more
personalized experience and relevant
marketing for you, and web analytics for us.

Learn More about our privacy policy
Skip to main content Skip to main navigation Skip to footer
OHLA USA - Home
    • Overview
    • Our Divisions
    • Our Leadership
    • Our History
    • OHLA Group
    • Safety & Quality
    • Awards & Recognition
  • Markets Vertical Construction
    • Commercial
    • Cultural/Entertainment
    • Education
    • Healthcare
    • Senior Living
    Transportation
    • Aviation
    • Bridges
    • Electrical & Signal Systems
    • Rail/Mass Transit
    • Resiliency & Recovery
    • Roads
    • Tunnels
    Environmental
    • Water
    Delivery Methods
    • Bid-Build
    • Construction Management At Risk (CMAR)
    • Design-Build
    • Design-Build-Finance
    • Public-Private Partnerships
    Services
    • Building Information Modeling
    • Construction Management
    • Design-Build Contracting
    • General Contracting
    • LEED Contracting
    • Preconstruction Services
    What We Do
  • Projects
  • Ethics and Integrity
    • Overview
    • Careers
    • Subcontractors & Suppliers
    • PPP & JV Partnering
    • Overview
    • News
    • Global Publications
    • Overview
    • Locations
  • Company
    • Overview
    • Our Divisions
    • Our Leadership
    • Our History
    • OHLA Group
    • Safety & Quality
    • Awards & Recognition
  • What We Do
  • Projects
  • Ethics and Integrity
  • Work With Us
    • Overview
    • Careers
    • Subcontractors & Suppliers
    • PPP & JV Partnering
  • Media
    • Overview
    • News
    • Global Publications
  • Contact
    • Overview
    • Locations

I-405 Improvement Project

  • Home
  • Projects
  • Project Details

This project, OHLA USA’s largest U.S. contracts, features the fast-tracked design and construction of 16 miles of two new lanes in each direction of the interstate highway I-405 in Orange County, California, from Costa Mesa to Los Angeles County. The OHLA USA-led design-build joint venture performs this $1.4 billion assignment for the Orange County Transportation Authority and the California Department of Transportation.

The project team is adding a general-purpose lane in each direction of I-405 from Euclid Street to the I-405/I-605 interchange, along with other enhancements consisting of a tolled express lane in each direction from SR-73 TO SR-22, improvements to freeway entrances, exits, bridges, and several auxiliary lanes. Also included in the scope of work is the reconfiguration of interchanges and ramps, construction of 18 new or replacement crossroad/ramp bridges, two overhead railroad crossings, one pedestrian bridge, and seven bridge widenings. Utility relocation, pavement construction, drainage facility upgrades, and sound wall installation are also part of the contract.

Project Details

Project Name

I-405 Improvement Project

Location

Orange County, CA

Division

OHLA USA California

Project Owner

Orange County Transportation Authority

Market

Transportation

Sub Market

Bridges

Delivery Method

Design-Build

Service

Design-Build Contracting

Region

West Coast

View All Projects

Related Sub Market

Related Sub Market

Bridges

Let's Get Started

Driven by a passion to create a better world - we're here to help. Contact us to learn more.

Contact Us
OHLA
  • © OHLA USA. All Rights Reserved.
  • Sitemap
  • OHLA USA Privacy Policy
  • Ethics and Integrity
  • linkedin
  • Facebook
  • Instagram