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.

Highway & Network Management

Related Content

  • Pedestrian bridges go-ahead for US-Canada Gordie Howe project
    January 24, 2020
    The Windsor-Detroit Bridge Authority has selected the design for the five pedestrian bridges which will be part of the US$4.4 billion Gordie Howe International Bridge.
    Read More
  • Hoover Dam’s innovative new bridge bypass
    April 12, 2013
    Soaring over 271m above the Colorado River, the Hoover Dam Bypass overlooks one of America’s greatest icons and assets. The October 2010 opening of the bypass improves the security of the historic Hoover Dam by removing through traffic from US Route 93. This has reduced its vulnerability to a terrorist attack against an international landmark and guarded the most sustainable source of electricity and the scarce water supply for the entire southwestern United States. By diverting traffic from the hairpin tur
    Read More
  • Bridge formwork solutions complete big bridge picture
    July 2, 2014
    Advanced bridge formwork solutions are allowing contractors to complete vital major highway infrastructure projects covering Norway, Sweden, Estonia and Poland. Guy Woodford reports Building the Labbdalen bridges in Norway is a key feature of the E6 highway improvement programme. Main project contractor HÆHRE tasked RMD Kwikform and Teknikk with supplying a complete formwork and shoring solution that could tackle the challenging Norwegian terrain, whilst preserving the environment. Situated two hours
    Read More
  • Framework solutions speed bridge construction
    February 24, 2012
    Framework plays a key role in construction of bridges and other major infrastructure works – Mike Woof writes Speeding construction processes can help reduce costs considerably and the latest formwork solutions can provide significant benefits in this regard. In many projects the use of standardized and modular formwork solutions can play a key role, reducing the planning and systems required for bridge building work.
    Read More

Highlighted Content