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Identification:
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Preferred Structure Name:
| Going-to-the-Sun Road West Side Tunnel
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Structure Number:
| 036P
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Other Structure Name(s):
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Other Structure Name(s)
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| No records. |
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Park:
| Glacier National Park
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Historic District:
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Historic District
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1.
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Going-to-the-Sun Road
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Structure State:
| Montana
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Structure County:
| Flathead
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Region:
| Intermountain
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Cluster:
| Rocky Mountain
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Administrative Unit:
| Glacier National Park
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LCS ID:
| 051131
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Historical Significance:
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National Register Status:
| Entered - Documented
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National Register Date:
| 06/16/1983
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National Historic Landmark?:
| Yes
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National Historic Landmark Date:
| 02/18/1997
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Significance Level:
| Contributing
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Short Significance Description:
| The Going-To-The-Sun Road West Side Tunnel is a contributing feature to the Going-to-the-Sun Road NHL. The Road is eligible under NHL criteria 1 and 4. The Road is significant in the areas of Landscape Architecture, Transportation and Politics/Government. Period of Significance 1921-1952.
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Long Significance Description:
| The Going-to-the-Sun Road is eligible under NHL criterion 1 for its association with the American park movement and the initiation of “landscape engineering” and Criterion 4 as an exceptionally valuable example of American landscape architecture and specifically as a distinctive and outstanding example of “landscape engineering” that blended the practices of civil engineering and landscape architecture. The Going-to-the Sun Road Historic District is also nationally significant in the history of technology (transportation) because of its unprecedented engineering and its place as a link in the Park-to-Park Highway. The Road is also significant under NHL Theme III. Expressing Cultural Values #5 Architecture, Landscape Architecture, and Urban Design and Theme VII Transforming the Environment #3 Protecting ad Preserving the Environment. The Road is significant in the areas of Landscape Architecture, Transportation and Politics/Government. Period of Significance 1921-1952.
The Going-To-The-Sun Road West Side Tunnel is a contributing feature to the Going-to-the-Sun Road Historic District under NR Criteria A - Transportation, Recreation, Engineering. The Road signifies the increase in importance of auto traffic in national parks and the accessibility of more of the park to the public.
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Construction Period:
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Construction Period:
| Historic
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Chronology:
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Physical Event
| Begin Year
| Begin Year AD/BC
| End Year
| End Year AD/BC
| Designer
| Designer Occupation
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1.
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Built
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1926
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AD
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1928
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AD
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Bureau of Public Roads/NPS
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Other
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2.
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Altered
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1968
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AD
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Function and Use:
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Primary Historic Function:
| Road Tunnel
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Primary Current Use:
| Road Tunnel
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Structure Contains Museum Collections?:
| No
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Other Functions or Uses:
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Other Function(s) or Use(s)
| Historic or Current
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| No records. |
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Physical Description:
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Structure Type:
| Road
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Volume:
| 20,000 - 2,000,000 cubic feet
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Square Feet:
| 6240
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Material(s):
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Structural Component(s)
| Material(s)
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1.
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Superstructure
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Concrete
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2.
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Superstructure
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Stone
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3.
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Substructure
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Stone
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Short Physical Description:
| Tunnel cut through overhanging rock cliff, 192' x 30' x 18, top portion is a half circle with a 10' radius, two-lane roadway with 3' sidewalk on each, tunnel was widened and lined with concrete in 1968. 24 MILES FROM ENTRANCE.
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