Client
Sound Transit
Designer
HJH
Location
Bellevue, Washington
Completion Date
2020
Delivery Method
General Contracting
The Downtown Bellevue Tunnel runs 1,985 linear feet and was excavated using the sequential excavation method. It is one of multiple projects that complete the 14-mile-long East Link Light Rail Extension from downtown Seattle to Redmond, Washington.
The project includes tunnel pre-support lattice with shotcrete lining, groundwater control, waterproofing, final concrete lining, tunnel walkway, center dividing wall, embeds and conduits, and a mid-tunnel access shaft. The scope of work includes 585 linear feet of soil nail wall support of excavation and a 325 linear feet of permanent soil nail wall.
Awards
2020 ENR Northwest Best Project Award (Airport/Transit)
2020 AGC of Washington Build Washington Award (Transit)
