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Carroll Overhead Bridge

Photos 

Carroll Overhead Bridge

looking east

HAER Photo

Enlarge

View photos at Library of Congress

BH Photo #487241

Map 

Description 

The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and age in the tri-county area of Alameda, Contra Costa and Santa Clara Counties. It is one the earliest curvilinear alignment concrete bridges in California. It is associated with the careers of two locally significant engineers: P.A. Haviland and George A. Posey. It has been determined eligible for inclusion in the National Register, meeting Criteria B and C at the local level. from HAER notes

Facts 

Overview
Lost Concrete stringer bridge over Southern Pacific Railroad on Altamont Pass Road
Location
Alameda County, California
Status
Removed but not replaced
History
Built 1923
Builders
- George A. Posey of Berkley, California (Design)
- Perry A. Haviland of Fort Dodge, Iowa (Design)
- Standard Industrial Engineering Corp (Contractor)
Railroad
- Southern Pacific Railroad (SP)
Design
Concrete stringer
Approximate latitude, longitude
+37.72258, -121.67822   (decimal degrees)
37°43'21" N, 121°40'42" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/616487/4175858 (zone/easting/northing)
Inventory number
BH 91552 (Bridgehunter.com ID)

Update Log 

  • December 21, 2020: Updated by Luke: Added builders
  • December 21, 2020: New photos from Geoff Hubbs

Sources 

  • Geoff Hubbs
  • Luke