Alaskan Way Viaduct Replacement (SR 99 Tunnel)

URI: https://gptkb.org/entity/Alaskan_Way_Viaduct_Replacement_(SR_99_Tunnel)
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf gptkb:tunnel
gptkbp:awards gptkb:Outstanding_Civil_Engineering_Achievement_Award_(2021)
gptkbp:builtBy gptkb:Tutor_Perini
gptkb:Dragados_USA
gptkb:Seattle_Tunnel_Partners
gptkbp:connects gptkb:South_Lake_Union
gptkb:SODO
gptkbp:constructionStartYear July 2013
gptkbp:cost $3.3 billion
https://www.w3.org/2000/01/rdf-schema#label Alaskan Way Viaduct Replacement (SR 99 Tunnel)
gptkbp:length 2 miles
gptkbp:location gptkb:Seattle,_Washington,_USA
gptkbp:maximumDepth 200 feet
gptkbp:notableEvent Bertha breakdown (2013-2015)
settlement delays
gptkbp:numberOfLanes 4
gptkbp:officialName gptkb:SR_99_Tunnel
gptkbp:opened February 4, 2019
gptkbp:operatedBy gptkb:Washington_State_Department_of_Transportation
gptkbp:purpose waterfront redevelopment
earthquake safety
traffic improvement
gptkbp:replacedBy gptkb:Alaskan_Way_Viaduct
gptkbp:routeNumber gptkb:State_Route_99
gptkbp:runsUnder gptkb:downtown_Seattle
gptkbp:tolling yes
gptkbp:tollingBegan November 2019
gptkbp:tunnelBoringMachineName gptkb:Bertha
gptkbp:type bored tunnel
gptkbp:website https://www.wsdot.wa.gov/projects/viaduct
gptkbp:bfsParent gptkb:T.Y._Lin_International
gptkbp:bfsLayer 6