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

  • AtkinsRéalis wins Île d’Orléans Bridge work
    May 2, 2024
    VIDEO: The new US$1.96 billion replacement Île d’Orléans Bridge near Quebec city, Canada, will feature two wider lanes of traffic, shoulders, multi-use lanes for pedestrians and cyclists as well as redevelopment of a major interchange and creation of green spaces.
  • Parsons Brinckerhoff is working on a key project in North Carolina
    May 7, 2013
    Parsons Brinckerhoff is now working with Blythe Construction on a US$69 million project for the Salem Creek Connector in Winston-Salem. The deal was awarded by the North Carolina Department of Transportation (NCDOT) and the two companies are handling the design and construction for a 1.7km section of four-lane highway on US52, which includes concrete pavement widening work. The project includes a new diverging diamond interchange and eight new bridges, including two railroad bridges. The new roadway is red
  • Florida highway rebuild project
    May 2, 2018
    Rebuilding a congested stretch of highway in Florida will cut congestion and boost safety for commuters - Mike Woof writes. Florida’s 214km-long I-4 highway provides a key transport route between Tampa and Daytona Beach, but has an unenviable reputation for both congestion and safety, with frequent delays due to heavy traffic as well as crashes. The stretch running through the city of Orlando is particularly prone to jams at peak periods, with huge traffic volumes resulting in vehicles having to slow to a c
  • ARTBA makes awards
    February 29, 2012
    A series of highway and bridge projects across the US have been recognised for their contributions to environmental protection and mitigation.