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- Lowell_Creek_Diversion_Tunnel abstract "The Lowell Creek Diversion Tunnel is a flood control project located in Seward, Alaska, United States. The project was constructed to alleviate flooding of Lowell Creek in Seward. It was the first flood control project completed by the United States Army Corps of Engineers in Alaska.Originally, Lowell Creek ran through Seward along what is now Jefferson Street. Beginning with the town's establishment in 1903, the fast-moving stream produced one to three severe floods a year until the tunnel was built in 1939. The floods carried large amounts of debris from the mountains; one flood deposited 10,000 cubic yards in an 11 hour period in 1935.In 1927 the Alaska Railroad constructed a small diversion dam and flume to carry debris down Jefferson Street to drain into Resurrection Bay. However, by 1937 these structures had deteriorated beyond repair. Consequently, the Army Corps of Engineers began construction of the new project in August 1939. The project consisted of: a diversion dam, 400 feet (120 m) in length and up to 25 feet (7.6 m) high that diverted the creek away from its original path;a tunnel through Bear Mountain, 2,068 feet (630 m) in length and 10 feet (3.0 m) in width;an outlet flume, 109 feet (33 m) in length and 10 feet (3.0 m) in width which drains into Resurrection Bay.Completed in 1940, this system withstood the 1964 Alaska earthquake, as well as severe floods in 1966, 1986, and 1995, which brought the water level within inches of cresting the dam.Though the project has prevented significant flooding of the city of Seward, debris continues to accumulate at the outlet of the flume and the city must work to move the debris further into the bay. With the significant risk of debris accumulation during a flooding event, new projects are being considered to replace the diversion tunnel — including construction of a new, wider tunnel through Bear Mountain at a cost of $30 million, or an aqueduct underneath Jefferson Street.".
- Lowell_Creek_Diversion_Tunnel added "1977-11-23".
- Lowell_Creek_Diversion_Tunnel location Seward,_Alaska.
- Lowell_Creek_Diversion_Tunnel nrhpReferenceNumber "77001577".
- Lowell_Creek_Diversion_Tunnel thumbnail SewardWithLowellCreekOutfall.png?width=300.
- Lowell_Creek_Diversion_Tunnel wikiPageID "25142368".
- Lowell_Creek_Diversion_Tunnel wikiPageRevisionID "580176578".
- Lowell_Creek_Diversion_Tunnel yearOfConstruction "1940".
- Lowell_Creek_Diversion_Tunnel added "1977-11-23".
- Lowell_Creek_Diversion_Tunnel built "1940".
- Lowell_Creek_Diversion_Tunnel caption "Army Corps of Engineers photo of Seward showing tunnel outlet".
- Lowell_Creek_Diversion_Tunnel governingBody "City of Seward".
- Lowell_Creek_Diversion_Tunnel hasPhotoCollection Lowell_Creek_Diversion_Tunnel.
- Lowell_Creek_Diversion_Tunnel latDegrees "60".
- Lowell_Creek_Diversion_Tunnel latDirection "N".
- Lowell_Creek_Diversion_Tunnel latMinutes "6".
- Lowell_Creek_Diversion_Tunnel latSeconds "14".
- Lowell_Creek_Diversion_Tunnel location Seward,_Alaska.
- Lowell_Creek_Diversion_Tunnel location "Lowell Canyon Road &".
- Lowell_Creek_Diversion_Tunnel location "Lowell Point Road,".
- Lowell_Creek_Diversion_Tunnel locmapin "Alaska".
- Lowell_Creek_Diversion_Tunnel longDegrees "149".
- Lowell_Creek_Diversion_Tunnel longDirection "W".
- Lowell_Creek_Diversion_Tunnel longMinutes "27".
- Lowell_Creek_Diversion_Tunnel longSeconds "9".
- Lowell_Creek_Diversion_Tunnel name "Lowell Creek Diversion Tunnel".
- Lowell_Creek_Diversion_Tunnel refnum "77001577".
- Lowell_Creek_Diversion_Tunnel subject Category:1940_establishments_in_Alaska.
- Lowell_Creek_Diversion_Tunnel subject Category:Buildings_and_structures_in_Kenai_Peninsula_Borough,_Alaska.
- Lowell_Creek_Diversion_Tunnel subject Category:Buildings_and_structures_on_the_National_Register_of_Historic_Places_in_Alaska.
- Lowell_Creek_Diversion_Tunnel subject Category:Seward,_Alaska.
- Lowell_Creek_Diversion_Tunnel subject Category:Tunnels_completed_in_1940.
- Lowell_Creek_Diversion_Tunnel subject Category:Tunnels_on_the_National_Register_of_Historic_Places.
- Lowell_Creek_Diversion_Tunnel point "60.10388888888889 -149.4525".
- Lowell_Creek_Diversion_Tunnel type Artifact100021939.
- Lowell_Creek_Diversion_Tunnel type Building102913152.
- Lowell_Creek_Diversion_Tunnel type BuildingsAndStructuresInKenaiPeninsulaBorough,Alaska.
- Lowell_Creek_Diversion_Tunnel type BuildingsAndStructuresOnTheNationalRegisterOfHistoricPlacesInAlaska.
- Lowell_Creek_Diversion_Tunnel type Object100002684.
- Lowell_Creek_Diversion_Tunnel type PhysicalEntity100001930.
- Lowell_Creek_Diversion_Tunnel type Structure104341686.
- Lowell_Creek_Diversion_Tunnel type Whole100003553.
- Lowell_Creek_Diversion_Tunnel type YagoGeoEntity.
- Lowell_Creek_Diversion_Tunnel type YagoPermanentlyLocatedEntity.
- Lowell_Creek_Diversion_Tunnel type ArchitecturalStructure.
- Lowell_Creek_Diversion_Tunnel type Building.
- Lowell_Creek_Diversion_Tunnel type Place.
- Lowell_Creek_Diversion_Tunnel type Wikidata:Q532.
- Lowell_Creek_Diversion_Tunnel type Place.
- Lowell_Creek_Diversion_Tunnel type Place.
- Lowell_Creek_Diversion_Tunnel type Location.
- Lowell_Creek_Diversion_Tunnel type _Feature.
- Lowell_Creek_Diversion_Tunnel comment "The Lowell Creek Diversion Tunnel is a flood control project located in Seward, Alaska, United States. The project was constructed to alleviate flooding of Lowell Creek in Seward. It was the first flood control project completed by the United States Army Corps of Engineers in Alaska.Originally, Lowell Creek ran through Seward along what is now Jefferson Street.".
- Lowell_Creek_Diversion_Tunnel label "Lowell Creek Diversion Tunnel".
- Lowell_Creek_Diversion_Tunnel sameAs m.06_jsq0.
- Lowell_Creek_Diversion_Tunnel sameAs Q6693191.
- Lowell_Creek_Diversion_Tunnel sameAs Q6693191.
- Lowell_Creek_Diversion_Tunnel sameAs Lowell_Creek_Diversion_Tunnel.
- Lowell_Creek_Diversion_Tunnel lat "60.10388888888889".
- Lowell_Creek_Diversion_Tunnel long "-149.4525".
- Lowell_Creek_Diversion_Tunnel wasDerivedFrom Lowell_Creek_Diversion_Tunnel?oldid=580176578.
- Lowell_Creek_Diversion_Tunnel depiction SewardWithLowellCreekOutfall.png.
- Lowell_Creek_Diversion_Tunnel isPrimaryTopicOf Lowell_Creek_Diversion_Tunnel.
- Lowell_Creek_Diversion_Tunnel name "Lowell Creek Diversion Tunnel".