List of Classified Structures
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Record: 1  260 261 262 263 264 265 266 267 268 269 270 271 of 535
Identification:

Preferred Structure Name:
EL Portal Road
Structure Number:
RO10813
Other Structure Name(s):
 
Other Structure Name(s)
1. 
All-Year Highway
Park:
Yosemite National Park
Historic District:
 
Historic District
No records.
Structure State:
California
Structure County:
Mariposa
Region:
Pacific West
Cluster:
Pacific Great Basin
Administrative Unit:
Yosemite National Park
LCS ID:
056026
 
Historical Significance:

National Register Status:
Determined Eligible - SHPO
National Register Date:
07/30/1997
National Historic Landmark?:
No
Significance Level:
National
Short Significance Description:
Built by Yosemite Valley Railroad to connect its terminus El Portal with the park. Road was reconstructed by NPS to provide access to the park in all seasons, and was a major factor in the development of winter sports in the park.
Long Significance Description:
Road is divided into 3 sections.
Section 1El Portal to Arch Rock entrance station is all new and rock wall removed except for 100' at turnout below entrance station.
Section 2 Arch Rock to Diversion Dam is all new and rock wall was removed.
Section 3 Diversion Dam to Pohono Bridge still intact,but part of Merced River Plan. Due to be replaced in the future.
 
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
1907
AD


Yosemite Valley Railroad
Engineer
2. 
Reconstructed
1908
AD
1913
AD
NPS
Engineer
3. 
Altered
1997
AD
1998
AD


 
Function and Use:

Primary Historic Function:
Road-Related
Primary Current Use:
NPS Class I Principal Road
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
Material(s):
 
Structural Component(s)
Material(s)
1. 
Superstructure
Asphalt
Short Physical Description:
2-lane highway between El Portal and Yosemite Valley.