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11th Street Overpass

San Joaquin County, California
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Photos 

North Elevation

Elevation along the north side of the bridge (original structure) looking east.

Photo courtesy of TY Lin International

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Map 

Street View 

Description 

Built in 1936 as part of State Route 5 and was owned and maintained by the state. Control of the structure was relinquished to the City of Tracy in 1971 following completion of the realignment of State Route 205 bypassing the city.

Facts 

Overview
Concrete tee beam bridge over UP RR on East 11th Street
Location
Tracy, San Joaquin County, California
Status
Open to traffic
History
Built 1936; Widened 1960
Builder
- State of California Department of Public Works
Design
Original: Simple span reinforced concrete "T" girder and simple span steel rolled beam on reinforced concrete bents with timber piles.
Widening: Simple span reinforced concrete "T" girder and simple span steel welded plate girder on reinforced concrete bents and steel piles.
Dimensions
Length of largest span: 81.0 ft.
Total length: 1,440.9 ft.
Deck width: 62.3 ft.
Skew angle
64 degrees
Approximate latitude, longitude
+37.73961, -121.41032   (decimal degrees)
37°44'23" N, 121°24'37" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/640066/4178114 (zone/easting/northing)
Quadrangle map:
Tracy
Elevation
60 ft. above sea level
Inventory numbers
CA bridge No. 29C-0126 (California bridge number)
BH 45310 (Bridgehunter.com ID)

Categories 

Beam (11,511)
Built 1936 (997)
Built during 1930s (10,429)
California (2,287)
Concrete tee beam (2,039)
Have street view (21,616)
Open (36,073)
 Owned by city (4,434)
San Joaquin County, California (54)
Skewed (4,655)
Span length 75-100 feet (5,709)
State of California Department of Public Works (1)
Total length 1000-2500 feet (1,630)
Tracy, California (1)

Update Log 

  • December 7, 2010: Updated by Kevin Pope: Added skew angle, elevation, and CA bridge No.
  • May 19, 2010: Added by Kevin Pope

Sources 

  • Kevin Pope
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Comments 

East Tracy OH
Posted March 28, 2012, by Borje Lundvall (borje [dot] lundvall [at] telia [dot] com)

Good guess, but I've now learnt that the bridge depicted on my photo is from the construction of nearby Maze Road Bridge on CA 132 (Maze Blvd), crossing the San Joaquin River. There's currently no recording of this bridge at Bridgehunter.com. The bridge was built 1935-1937, and was inaugarted in August 6, 1937.

East Tracy OH
Posted February 23, 2012, by Borje Lundvall (borje [dot] lundvall [at] telia [dot] com)

Attached is a picture which is believed to be East Tracy OH during construction in 1936, received from my great uncle who is likely to have been employed as carpenter at the bridge construction. Bridge engineers of Tracy has confirmed that the picture is consistent with East Tracy OH. The boy on the picture is my great uncle's step son. Incidentally, East Tracy is in advance stage of being replaced, full documentary including pictures and maps can be downloaded from this web site: http://ci.tracy.ca.us/documents/11th_St_Bridge_Draft.pdf

Borje Lundvall, Karlstad, Sweden