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Pohono Bridge

Mariposa County, California
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Photos 

Pohono Bridge

Looking West

Photo taken by Craig Philpott in May 2010

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Description 

Pohono Bridge exemplifies the National Park Service "rustic style" of architecture through its use of a stone veneer to conceal its reinforced concrete substructure.

-- Historic American Engineering Record

Facts 

Overview
Concrete arch bridge over Merced River on Valley Loop Road
Location
Mariposa County, California
Status
Open to traffic
History
Built 1928
Builders
- George D. Whittle (Engineer - Buearu of Public Roads)
- Rocca and Caletti (Contractor)
Design
Closed-spandrel arch
Dimensions
Length of largest span: 80.1 ft.
Total length: 131.9 ft.
Deck width: 26.9 ft.
Approximate latitude, longitude
+37.71648, -119.66612   (decimal degrees)
37°42'59" N, 119°39'58" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/265002/4177704 (zone/easting/northing)
USGS topographic map
El Capitan
Inventory number
BH 11102 (Bridgehunter.com ID)
Inspection (as of 06/1998)
Deck condition rating: Very Good (8 out of 9)
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 46.4 (out of 100)
Average daily traffic (as of 1998)
1,500

Categories 

Arch (9,420)
Built 1928 (806)
Built during 1920s (7,033)
California (1,622)
Closed-spandrel arch (2,762)
Deck arch (8,703)
Functionally obsolete (7,040)
George D. Whittle (3)
 HAER documented (782)
Mariposa County, California (39)
Open (28,319)
Owned by National Park Service (253)
Owned by federal government (590)
Rocca and Caletti (8)
Span length 75-100 feet (4,720)
Total length 125-175 feet (4,137)

Update Log 

  • February 1, 2012: HAER photos posted by Michael Goff

Sources 

  • Craig Philpott - cphilpott [at] puc [dot] edu
  • HAER CA-90 - Pohono Bridge, Spanning Merced River on Yosemite Valley Road, Yosemite Village, Mariposa County, CA

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