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Williamson Valley Road Bridge

Photos 

Williamson Valley Road Bridge

Photo taken by Alexander D. Mitchell IV in May 2008

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BH Photo #184342

Map 

Description 

Location known as Kayfour Ranch; roads beyond this bridge to north are marked as private land, and are not necessarily maintained--travel not recommended for low-ground-clearance vehicles.

Truss span originally constructed as one span of San Carlos Bridge over Gila River near Payson in 1921; disassembled 1935 for reservoir and this span relocated to this location 1936.

Facts 

Overview
Through truss bridge over Walnut Creek on Williamson Valley Road 36 miles northwest of Prescott
Location
Yavapai County, Arizona
Status
Open to traffic
History
Original bridge built 1915; replaced with truss span 1936; rehabilitated 1992
Builders
- Midland Bridge Co. of Kansas City, Missouri
- Midland Steel Co.
Design
Pratt through truss
Dimensions
Length of largest span: 138.8 ft.
Total length: 169.0 ft.
Deck width: 13.8 ft.
Vertical clearance above deck: 13.5 ft.
Recognition
Posted to the National Register of Historic Places
Also called
Kayfour Bridge
Approximate latitude, longitude
+34.92862, -112.81604   (decimal degrees)
34°55'43" N, 112°48'58" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/334130/3866632 (zone/easting/northing)
Quadrangle map:
Indian Peak
Inventory numbers
AZ 8741 (Arizona bridge number)
BH 10776 (Bridgehunter.com ID)
Inspection (as of 05/2013)
Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 50.4 (out of 100)
Average daily traffic (as of 2012)
108

Update Log 

  • August 30, 2017: Updated by Alexander D. Mitchell IV: Additional history and corrections added
  • August 13, 2011: Updated by Alexander D. Mitchell IV: Description updated.
  • November 2, 2010: Updated by Alexander D. Mitchell IV: Corrected map and location

Sources