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Cascade Creek Bridge

Mariposa County, California
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Photos 

Cascade Creek

South Face

Photo taken by Craig Philpott in May 2010

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Description 

Cascade Creek Bridge and nearby spans over Tamarack and Wildcat creeks mark a departure from the "Rustic Style" bridges completed over the previous two decades elsewhere in Yosemite. The reinforced concrete open spandrel arch bridges carry the New Big Oak Flat Road over the three creeks as they tumble in steep cascades, and takes full advantage of the scenic potential. The graceful bridges are unobtrusive and harmonize with the surrounding landscape; their stream-lined look also reflects modern bridge design, as structures were planned for higher-speed travel.

-- Historic American Engineering Record

View Uglybridges.com report

Facts 

Overview
Concrete arch bridge over Cascade Creek on Big Oak Flat Road
Location
Mariposa County, California
Status
Open to traffic
History
Built 1939
Builders
- A. W. Schimberg (Resident Engineer)
- John Rocca (Contractor)
- McDonald and Fealy (Sub-Contractor - Concrete Products)
- Rocca and Caletti (Contractor)
- Soule Steel Co. (Sub-Contractor - Reinforcing Steel Supplier)
Design
Concrete open spandrel deck arch
Dimensions
Length of largest span: 101.1 ft.
Total length: 198.2 ft.
Deck width: 24.0 ft.
Approximate latitude, longitude
+37.72778, -119.71302   (decimal degrees)
37°43'40" N, 119°42'47" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/260903/4179077 (zone/easting/northing)
Elevation
4350 ft. above sea level
USGS topographic map
El Capitan
Inventory number
BH 11093 (Bridgehunter.com ID)
Inspection (as of 07/2010)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 43.8 (out of 100)
Average daily traffic (as of 2010)
2,393

Categories 

A. W. Schimberg (3)
Arch (9,418)
Built 1939 (513)
Built during 1930s (8,551)
California (1,622)
Concrete balustrade (425)
Deck arch (8,698)
Functionally obsolete (7,038)
HAER documented (781)
Have street view (9,889)
 John Rocca (3)
Mariposa County, California (39)
McDonald and Fealy (3)
Open (28,309)
Open-spandrel arch (582)
Owned by state (9,807)
Rocca and Caletti (8)
Soule Steel Co. (3)
Span length 100-125 feet (3,299)
Total length 175-250 feet (2,789)

Update Log 

  • February 1, 2012: HAER photos posted by Michael Goff
  • November 19, 2011: New Street View added by Craig Philpott
  • May 10, 2010: Updated by Craig Philpott: corrected location added photos

Sources 

  • Craig Philpott - cphilpott [at] puc [dot] edu
  • HAER CA-85 - Cascade Creek Bridge, Spanning Cascade Creek on New Big Oak Flat Road, Yosemite Village, Mariposa County, CA

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