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Identification:

Preferred Structure Name:
Going-to-the-Sun Road West Side Tunnel
Structure Number:
036P
Other Structure Name(s):
 
Other Structure Name(s)
No records.
Park:
Glacier National Park
Historic District:
 
Historic District
1. 
Going-to-the-Sun Road
Structure State:
Montana
Structure County:
Flathead
Region:
Intermountain
Cluster:
Rocky Mountain
Administrative Unit:
Glacier National Park
LCS ID:
051131
 
Historical Significance:

National Register Status:
Entered - Documented
National Register Date:
06/16/1983
National Historic Landmark?:
Yes
National Historic Landmark Date:
02/18/1997
Significance Level:
Contributing
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.
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.
 
Construction Period:

Construction Period:
Historic
Chronology:
 
Physical Event
Begin Year
Begin Year AD/BC
End Year
End Year AD/BC
Designer
Designer Occupation
1. 
Built
1926
AD
1928
AD
Bureau of Public Roads/NPS
Other
2. 
Altered
1968
AD




 
Function and Use:

Primary Historic Function:
Road Tunnel
Primary Current Use:
Road Tunnel
Structure Contains Museum Collections?:
No
Other Functions or Uses:
 
Other Function(s) or Use(s)
Historic or Current
No records.
 
Physical Description:

Structure Type:
Road
Volume:
20,000 - 2,000,000 cubic feet
Square Feet:
6240
Material(s):
 
Structural Component(s)
Material(s)
1. 
Superstructure
Concrete
2. 
Superstructure
Stone
3. 
Substructure
Stone
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.