Skip to main content

Arcadis for Calcasieu Bridge replacement work

Replacement of the 70-year-old Calcasieu River Bridge in the US state of Louisiana will revive a connection between the cities of Lake Charles and Westlake.
By David Arminas June 12, 2025 Read time: 2 mins
The 2km-long Calcasieu River Bridge, opened in 1952, is an arched cantilever, rivet-connected Warren through truss for the main span located on Interstate 10 between Lake Charles and Westlake (image © Typhoonski/Dreamstime)

Arcadis has been appointed to support the design work for the I-10 Calcasieu Bridge Improvements Project in the US state of Louisiana.

The replacement of the 70-year-old Calcasieu River Bridge will revive a vital connection between the Louisiana cities of Lake Charles and Westlake. With a project cost valued at US$2.3 billion, the Calcasieu Design Partners will upgrade a crucial 9km stretch of I-10, delivering enhancements to improve safety, connectivity and sustainability.

The 2km-long Calcasieu River Bridge, opened in 1952, is an arched cantilever, rivet-connected Warren through truss for the main span located on Interstate 10 between Lake Charles and Westlake. “The Calcasieu River Bridge has served the region for 70 years, but as it nears the end of its lifespan, the need for intelligent, modern and sustainable solutions is more critical than ever,” said Alan Brookes, chief executive of Arcadis.

Arcadis is working as part of a joint venture with Janssen and Spaans Engineering, Modjeski and Masters as well as Huval and Associates – collectively known as the Calcasieu Design Partner. The team will support Louisiana Bridge Builders, a construction joint venture between Arcadis’ key client Acciona and Sacyr Construction.

The project is overseen by the concessionaire, Calcasieu Bridge Partners (Acciona, Sacyr and Plenary), in collaboration with the Louisiana Department of Transportation and Development, also a key client of Arcadis.

Over eight years, Arcadis’ will update existing interchanges and roadways. Pulling on expertise from across North America, the Netherlands and the company’s Global Excellence Centers in India, Romania and the Philippines, Arcadis will deliver a range of specialised intelligent mobility, engineering and design services.

These include traffic engineering, including the development of a transportation management plan and the design of permanent signage, signals and pavement markings. There will be structural design work for sign support structures, roadway and drainage as well as bridge design for the I-10/I-210 flyover ramp and hydraulic modeling for the main span bridge.

Related Content

  • Webuild proposes Baltimore Bridge design
    May 6, 2024
    VIDEO: The project in the US state of Maryland to replace the collapsed Francis Scott Key Bridge was made free of charge ahead of tomorrow’s state-led virtual industry forum for reconstruction of the bridge.
  • Francis Scott Key Bridge demolition
    July 3, 2025
    Demolition is planned for the Francis Scott Key Bridge.
  • Recycling concrete runway saves time, money
    February 17, 2012
    Nashville International Airport in the US state of Tennessee has revamped its facilities following extensive upgrades being carried out on its oldest runway in a project worth some US$23 million. The airport authorities realised that to improve both capacity and safety a major improvement of runway 2L-20R was required, with full-depth reconstruction needed to provide the necessary structural strength and working life. Engineering firm Garver Aviation worked on the project to rehabilitate the portion of Runw
  • AnyWay, De La Salle University to collaborate
    March 22, 2024
    Zeev Halber, Anyway chief executive, signed an agreement with the university’s Gokongwei College of Engineering to collaborate on research on climate resilient transportation infrastructure.