About: Robertson Tunnel

An Entity of Type: infrastructure, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

The Robertson Tunnel is a twin-bore light rail tunnel through the Tualatin Mountains west of Portland, Oregon, United States, used by the MAX Blue and Red Lines. The tunnel is 2.9 miles (4.7 kilometers) long and consists of twin 21-foot-diameter (6.4 m) tunnels. There is one station within the tunnel at Washington Park, which at 259 feet (79 m) deep is the deepest subway station in the United States and the fifth-deepest in the world. Trains are in the tunnel for about 5 minutes, which includes a stop at the Washington Park station. The tunnel has won several worldwide engineering and environmental awards. It was placed into service September 12, 1998.

Property	Value
dbo:abstract	The Robertson Tunnel is a twin-bore light rail tunnel through the Tualatin Mountains west of Portland, Oregon, United States, used by the MAX Blue and Red Lines. The tunnel is 2.9 miles (4.7 kilometers) long and consists of twin 21-foot-diameter (6.4 m) tunnels. There is one station within the tunnel at Washington Park, which at 259 feet (79 m) deep is the deepest subway station in the United States and the fifth-deepest in the world. Trains are in the tunnel for about 5 minutes, which includes a stop at the Washington Park station. The tunnel has won several worldwide engineering and environmental awards. It was placed into service September 12, 1998. The tunnels pass through basalt layers up to 16 million years old. Due to variations in the rock composition, the tunnel curves mildly side to side and up and down to follow the best rock construction conditions. The tunnels vary from 80 to 300 feet (24–91 m) below the surface. A core sample taken during construction is on display with a timeline of local geologic history.The east tunnel entrance is near Vista Bridge at the edge of the Goose Hollow neighborhood at the foot of Washington Park. The west entrance is along U.S. Highway 26 just west of the Finley-Sunset Hills cemetery, about a mile east of the junction with Oregon Highway 217. (en)
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dbo:owner	dbr:TriMet
dbo:routeStartLocation	dbr:Goose_Hollow,_Portland,_Oregon
dbo:speedLimit	88.513700 (xsd:double)
dbo:status	Operational
dbo:thumbnail	wiki-commons:Special:FilePath/MAX_Tunnel_Entrance.jpg?width=300
dbo:typeOfElectrification	dbr:Overhead_line dbr:Direct_current
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dbp:caption	East portal of the tunnel in 2007 (en)
dbp:el	750 (xsd:integer)
dbp:end	Sunset Hills Mortuary (en)
dbp:hielevation	approx. inside west portal (en)
dbp:line	* * (en)
dbp:location	Tualatin Mountains, Portland, Oregon, United States (en)
dbp:lowelevation	at east portal (en)
dbp:name	Robertson Tunnel (en)
dbp:notrack	2 (xsd:integer)
dbp:opened	1998-09-12 (xsd:date)
dbp:owner	dbr:TriMet
dbp:speed	55.0
dbp:start	Goose Hollow (en)
dbp:stations	1 (xsd:integer)
dbp:status	Operational (en)
dbp:system	dbr:MAX_Light_Rail
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gold:hypernym	dbr:Tunnel
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rdfs:comment	The Robertson Tunnel is a twin-bore light rail tunnel through the Tualatin Mountains west of Portland, Oregon, United States, used by the MAX Blue and Red Lines. The tunnel is 2.9 miles (4.7 kilometers) long and consists of twin 21-foot-diameter (6.4 m) tunnels. There is one station within the tunnel at Washington Park, which at 259 feet (79 m) deep is the deepest subway station in the United States and the fifth-deepest in the world. Trains are in the tunnel for about 5 minutes, which includes a stop at the Washington Park station. The tunnel has won several worldwide engineering and environmental awards. It was placed into service September 12, 1998. (en)
rdfs:label	Robertson Tunnel (en)
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geo:lat	45.510662 (xsd:float)
geo:long	-122.716866 (xsd:float)
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foaf:depiction	wiki-commons:Special:FilePath/MAX_Tunnel_Entrance.jpg wiki-commons:Special:FilePath/Robertson_core.jpg wiki-commons:Special:FilePath/Robertson_tunnel_east_end_P2268a.jpeg wiki-commons:Special:FilePath/Robertson_tunnel_west_end_P2254a.jpeg wiki-commons:Special:FilePath/Robertson_tunnel_west_end_P2255.jpeg
foaf:isPrimaryTopicOf	wikipedia-en:Robertson_Tunnel
foaf:name	Robertson Tunnel (en)
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