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Middle River Bridge

Photos 

Middle River

Looking East

Photo taken by Craig Philpott in March 2010

Enlarge

BH Photo #158016

Map 

Street View 

Facts 

Overview
Howe Through truss bridge over Middle River on CA 4
Location
San Joaquin County, California
Status
Open to traffic
History
Built 1915; rehabilitated 1975
Builder
- American Bridge Co. of New York (Steel Fabricator)
Design
Howe Through truss
Dimensions
Length of largest span: 129.9 ft.
Total length: 546.9 ft.
Deck width: 19.7 ft.
Vertical clearance above deck: 19.7 ft.
Recognition
Eligible for the National Register of Historic Places
Also called
Borden Highway Middle River Bridge
Approximate latitude, longitude
+37.89072, -121.48932   (decimal degrees)
37°53'27" N, 121°29'22" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/632834/4194765 (zone/easting/northing)
Quadrangle map:
Holt
Elevation
8 ft. above sea level
Inventory numbers
CA 29-49 (California bridge number)
BH 11432 (Bridgehunter.com ID)
Inspection (as of 05/2015)
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: 54.0 (out of 100)
Average daily traffic (as of 2009)
7,200

Update Log 

  • July 31, 2016: Updated by Christopher Finigan: Added categories "Pin-connected", "Riveted"
  • July 3, 2011: Updated by Craig Philpott: added name
  • March 13, 2010: Updated by Craig Philpott: Added photos and street view

Sources 

Comments 

Middle River Bridge
Posted January 23, 2014, by Lee (Leetrichell [at] icloud [dot] com)

Truss Bridges are attractive. This is a pretty bridge out in the back roads of the Bay Area.