University Link Tunnel

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University Link Tunnel
Overview

Tunnel near midpoint at Capitol Hill Link station
Location	Seattle, Washington
Status	Active
Start	University of Washington Station
End	Downtown Seattle Transit Tunnel
Operation
Owner	Sound Transit
Traffic	Link Light Rail
Technical
Construction	2009–2012
Length	3 mi (4.8 km)^[1]
Tunnel clearance	21 ft (6.4 m)
Width	21 ft (6.4 m)

The University Link Tunnel is an approximately 3-mile (4.8 km)^[1] transit tunnel under construction in Seattle, Washington, USA for Link Light Rail. The tunnel will create the Link Light Rail University Link segment, running from University of Washington Station to the Downtown Seattle Transit Tunnel.

Construction

Construction of two parallel tunnels began in 2009,^[2] and the tunnel boring machine completed the second tunnel in May 2012.^[3] The $1.9 billion megaproject is expected to be completed in 2016.^[2]^[1]

The two 21-foot (6.4 m) diameter tunnel boring machines weigh more than half a million pounds each.^[2]

References

↑ 1.0 1.1 1.2 Meghan Erkkinen (2006-11-28). "Feds give light rail green light". The Daily. Retrieved 2007-07-14.
↑ 2.0 2.1 2.2 "University Link Extension". Sound Transit. Retrieved 2012-12-15.
↑ Scott Gutierrez (May 15, 2012), Light rail tunnels now link downtown to Capitol Hill, UW, Seattle Post-Intelligencer

Bridges and tunnels in and around Seattle

Bridges

Road	Alaskan Way Viaduct Ballard Bridge Cowen Park Bridge East Channel Bridge Evergreen Point Floating Bridge First Avenue South Bridge Fremont Bridge George Washington Memorial Bridge (Aurora Bridge) Homer M. Hadley Memorial Bridge (Third Lake Washington Floating Bridge) Jose Rizal Bridge Lacey V. Murrow Memorial Bridge (I-90 Floating Bridge) Magnolia Bridge Montlake Bridge North Queen Anne Drive Bridge Schmitz Park Bridge Ship Canal Bridge South Park Bridge Spokane Street Bridge 20th Avenue NE Bridge University Bridge West Seattle Bridge

Rail	Salmon Bay Bridge Wilburton Trestle

Tunnels

Road	Alaskan Way Viaduct replacement tunnel (under construction) Battery Street Tunnel Convention Center-Freeway Park Lid Mercer Island Lid Mount Baker Tunnel

Rail	Beacon Hill Tunnel Great Northern Tunnel University Link Tunnel

Multi	Downtown Seattle Transit Tunnel

Utility	Brightwater sewage tunnel

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