I-405 Highway in California

Roads & Motorways

Progress status


Data updated to March 2021

Long Beach, California, Stati Uniti
SDG Obiettivi di sviluppo sostenibile
Industry innovation and infrastructure Industry innovation and infrastructure

The project calls for the design and construction of the improvement works for 26 kms of interstate highway. The complexity of the works, which also includes the construction of 35 bridges, is accentuated by the need to maintain the infrastructure in operation for the entire duration of the activities. Commissioned by OCTA – Orange County Transportation Authority, I-405 is among the most important highway projects underway in California.

Project numbers

Concrete (m3)


Rockfill (m3)


Excavation (total m3)