![]() A section of tunnel at Capitol Hill station | |
Overview | |
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Line | ![]() |
Location | Seattle, Washington |
Status | Active |
Start | Downtown Seattle Transit Tunnel |
End | University of Washington station |
Operation | |
Constructed | 2009–12 |
Opened | March 19, 2016[1] |
Owner | Sound Transit |
Traffic | Link light rail |
Technical | |
Length | 3.15 mi (5.07 km)[2] |
No. of tracks | Double |
Track gauge | 4 ft 8+1⁄2 in (1,435 mm) |
Tunnel clearance | 21 ft (6.4 m) |
Width | 21 ft (6.4 m) |
The University Link tunnel is a 3.15-mile (5.07 km)[2][3] light rail tunnel in Seattle, Washington. The twin-bore tunnel carries Link light rail service on the University Link Extension of Central Link (now the 1 Line), running from the Downtown Seattle Transit Tunnel to University of Washington station via Capitol Hill station. The 21 ft-wide (6.4 m) tunnels are lined with precast gasketed concrete segments connected with steel bolts and was excavated using three tunnel-boring machines in 2011 and 2012. Light rail service began on March 19, 2016.[1]