Arcadis, a sustainable design and engineering consultancy, as part of a joint venture (JV), is set to undertake the design phase of the Interstate 10 (I-10) Calcasieu Bridge Improvements Project in Louisiana, US.
The company will work in collaboration with Janssen and Spaans Engineering, Modjeski and Masters, and Huval and Associates, together referred to as Calcasieu Design Partners.
The P3 project, led by the Louisiana Department of Transportation and Development and the Calcasieu Bridge Partners consortium, which includes Acciona, Sacyr, and Plenary, is valued at $2.3bn.
This initiative will replace the 70-year-old Calcasieu River Bridge, revitalising a key route between Lake Charles and Westlake in the state.
The JV will upgrade a five-and-a-half-mile stretch of I-10 from the I-10/I-210 interchange west to Ryan Street in Calcasieu Parish.
Arcadis' role encompasses updating current interchanges and roadways alongside offering a broad spectrum of engineering and design services.
These include environmental studies and permitting, traffic engineering with a Transportation Management Plan, and the design of permanent signage, signals, and pavement markings.
The company will also work on Intelligent Transportation Systems design, structural design for sign support structures, roadway and drainage design, and bridge design for the I-10/I-210 flyover ramp, along with hydraulic models for the main span bridge.
The project aims to deliver improvements that will enhance safety, connectivity, and sustainability for the region.
Arcadis senior design-build project director Angelica Corradi Gomez said: "We are proud to contribute to a project that will improve transportation in the region while creating lasting benefits for the community. This project aligns with our mission to improve quality of life and deliver infrastructure solutions with longevity for communities globally."
Arcadis North America Mobility segment director Wassim Selman added: "The I-10 Calcasieu Bridge Improvements Project represents a bold vision for the future of transportation in Southwest Louisiana. By addressing ageing infrastructure and planning for future growth, this project will serve as a cornerstone for the region's economic and social vitality."
In March 2025, Arcadis secured the lead design role for the QEII Halifax Infirmary Expansion Project in Atlantic Canada.
