Rating:
2 votes

Rockfield Bridge

San Bernardino County, California

Photos 

Rockfield Bridge, Victorville

Looking SW

Photo taken by Craig Philpott in April 2010

Enlarge

BH Photo #163473

Map 

Street View 

Facts 

Overview
Baltimore variant through truss bridge over Mojave River on Nat Trails Hwy (old US 66)
Location
Victorville, San Bernardino County, California
Status
Open to traffic
History
Built 1930
Design
Baltimore variant through truss
Dimensions
Length of largest span: 270.0 ft.
Total length: 575.2 ft.
Deck width: 34.1 ft.
Recognition
Eligible for the National Register of Historic Places
Also called
Route 66 Bridge
Oro Grande Bridge
Approximate latitude, longitude
+34.57395, -117.32268   (decimal degrees)
34°34'26" N, 117°19'22" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/470402/3825844 (zone/easting/northing)
Quadrangle map:
Victorville
Average daily traffic (as of 2014)
9,040
Inventory number
BH 44834 (Bridgehunter.com ID)
Inspection report (as of January 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 62 (out of 100)
View more at BridgeReports.com

Categories 

Baltimore through truss (294)
Baltimore truss (323)
Beam (14,016)
Built 1930 (1,643)
Built during 1930s (11,069)
California (2,267)
Concrete stringer (667)
Have street view (25,065)
NR-eligible (4,002)
Open (38,388)
 Owned by state (14,932)
San Bernardino County, California (56)
Skewed (4,802)
Span length 250-500 feet (1,104)
Through truss (13,855)
Total length 500-1000 feet (2,638)
Truss (30,961)
US 66 (270)
Victorville, California (4)

Update Log 

  • May 25, 2019: New photos from Joe Sonderman
  • May 26, 2016: Updated by Roger Deschner: Added category "US 66"
  • July 8, 2015: New photos from Michael Shulman
  • September 4, 2014: New photos from Royce and Bobette Haley
  • January 31, 2013: New photos from Jann Mayer
  • August 3, 2012: New photo from David Backlin
  • April 24, 2010: Updated by Craig Philpott: refined design description
  • April 22, 2010: New photos from Craig Philpott
  • April 11, 2010: Updated by Craig Philpott: refined design, added street view, more design assistance needed

Sources 

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Comments 

Rockfield Bridge
Posted April 22, 2010, by Nathan Holth (form3 [at] historicbridges [dot] org)

Over on HistoricBridges.org, I call these modified Warrens because while they appear similar to Baltimore truss bridges, they use Warren config for the primary diagonals as opposed to the Pratt. A Baltimore is by definition a variation of a Pratt.

I don't know what the general consensus is here on BridgeHunter for this type. There was a discussion about weird truss types a while back:

http://www.bridgehunter.com/story/1109/

Rockfield Bridge, design description needed
Posted April 22, 2010, by Craig Philpott (cphilpott [at] puc [dot] edu)

This through truss in San Bernardino county is an unusual design, to me, and it needs a better design description. All assistance and education appreciated.