State Route 99 Tunnel (Seattle, United States). Settlement Estimation Methods and Damage Mitigation Measures

Publication: Ingeo/Tunnels Vol. 21. Chapter 9
Authors: Alejandro Romero & Carlos Herranz

Summary: This text describes, in detail, the most significant settlement mitigation measures in the design of the State Route 99 Tunnel, which runs entirely beneath the financial district of downtown Seattle, United States. When construction is completed in the year 2015, this tunnel, at 17.5 m in diameter and 3.46 km in length will become the widest diameter tunnel to date. 


SR 99 Seattle tunnel


C/ Julián Camarillo 53

28037 | Madrid | Spain

P +34 915 673 800

F +34 915 673 805


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