Case Study
Sound Transit East Link Extension
Sound Transit East Link Extension Seattle, Washington Project enhances schedule reliability, supports city redevelopment • Successful public outreach, agency coordination set stage for success • Design, construction experience deliver multifaceted project • Project connects to Seattle and Puget Sound’s east side As joint venture lead partner, HNTB provided project management and civil, structural and station design services for a portion of South Transit’s East Link project, which connects Sound Transit’s Link light rail line to Seattle and Puget Sound’s east side. The project features about 7 miles of double-track light-rail transit, 10 stations, a cut-and-cover tunnel in downtown Bellevue, and a long-span bridge crossing interstates 405 and 90. The grade-separated alignment