AtkinsRéalis Plays Key Role in Launching Sound Transit's Major Rail Project

AtkinsRéalis Launches Sound Transit's Federal Way Link Extension

AtkinsRéalis, a prominent engineering and nuclear services company with global offices, marks a significant milestone in the transit landscape of Washington State. On December 8, 2025, the company celebrated the beginning of passenger operations for the Federal Way Link Extension, which stands as Sound Transit’s most ambitious design-build venture to date. Having been involved in this $1.6 billion project since its inception in 2018, AtkinsRéalis has provided a comprehensive suite of project management services, ensuring efficient execution from design to construction.

This newly expanded light rail service connects the bustling city of Seattle with key neighborhoods including SeaTac, Des Moines, Kent, and Federal Way, thereby enhancing public transportation connectivity across the region. The addition of three new stations, two parking garages, and an extension of an existing garage is expected to support approximately 25,000 daily riders. This development reflects AtkinsRéalis’ commitment to improving urban mobility and fostering community integration.

Sergio Callen, the Vice President and National Rail Transit Sector Manager at AtkinsRéalis, expressed pride in the project, stating, "This project shows our dedication to building infrastructure that brings people together and enhances everyday life." The collaboration with Sound Transit and various partners has led to a light rail line that not only meets current commuter needs but is also poised to accommodate future growth in the area.

The extension introduces new stations at Kent-Des Moines, Star Lake, and Federal Way Downtown. These stations are strategically designed to facilitate multimodal access, including a total of 3,200 new parking spaces and pedestrian pathways, catering to the diverse needs of the traveling public. Additionally, the project integrates connections to regional bus services, ensuring a seamless travel experience. One of the standout engineering achievements of this project is the 500-foot cast-in-place segmental bridge, a solution devised mid-construction when unstable soils posed challenges. This proactive approach underscores the company’s agility in adapting to complex engineering hurdles.

Ken Regan, a Resident Engineer and Senior Project Manager at AtkinsRéalis, remarked, "The Federal Way Link Extension exemplifies the power of teamwork and strategic planning to deliver solutions beneficial to the community." The project has been designed with sustainability in mind, increasing transportation options for residents and contributing to broader environmental goals.

With more than 5,000 experts and an extensive portfolio that includes over 2,000 rail projects across the United States, AtkinsRéalis is well-positioned as a leader in the field of rail and transit infrastructure. Notable past projects include oversight roles for BART (Bay Area Rapid Transit), VTA (Valley Transportation Authority), and the MTA Purple Line in Maryland, among others.

Through its global capabilities, AtkinsRéalis focuses not only on engineering but on creating sustainable solutions that connect people, data, and technology. This holistic approach is geared towards transforming the planet's infrastructure for the betterment of society and the environment.

As the Federal Way Link Extension prepares to serve its first passengers, it stands as a testament to the power of engineering innovation and cooperation in realizing ambitious transit goals. Those interested in further details can visit the company’s website, www.atkinsrealis.com, or connect with them on LinkedIn for more insights into their ongoing projects and achievements.