Rating:
1 vote

High Street Bridge

Photos 

High Street Bridge

Looking west.

Photo taken by Craig Philpott in November 2009

Enlarge

BH Photo #149035

Map 

Street View 

Facts 

Overview
Double leaf Bascule bridge over Oakland Estuary on High Street in Oakland
Location
Oakland, Alameda County, California
Status
Open to traffic
History
Built 1939
Builder
- MacDonald & Kahn Co. Ltd. of San Francisco, California
Design
Double leaf Bascule bridge
Dimensions
Length of largest span: 147.0 ft.
Total length: 506.9 ft.
Deck width: 24.0 ft.
Vertical clearance above deck: 15.9 ft.
Also called
High Street Bridge
Approximate latitude, longitude
+37.76449, -122.22494   (decimal degrees)
37°45'52" N, 122°13'30" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/568266/4179968 (zone/easting/northing)
Quadrangle map:
Oakland East
Inventory numbers
CA 33C-26 (California bridge number)
BH 10797 (Bridgehunter.com ID)
Inspection (as of 02/2016)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 57.7 (out of 100)
Average daily traffic (as of 2014)
19,900

Update Log 

  • June 2, 2016: New Street View added by Douglas Butler
  • December 1, 2015: New Street View added by Douglas Butler
  • September 8, 2014: New photos from Royce and Bobette Haley
  • November 10, 2009: Updated by Craig Philpott: added builder name and photos

Related Bridges 

Sources 

  • Craig Philpott - craigphilpott63 [at] gmail [dot] com
  • Douglas Butler
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com

Comments 

High Street Bridge
Posted August 10, 2011, by Nathan Holth (form3 [at] historicbridges [dot] org)

This bridge is quite unusual when considered in the greater context of fixed trunnion bascule bridges. The bridge is strikingly similar to the earliest fixed trunnion bascule bridges built in Chicago in the first decade of the 20th Century including external rack and through truss design, however this California example dates to 1939. Chicago engineers likely would have laughed their heads off at this bridge which they would have perceived as a ridiculously obsolete design. As early as 1914, Chicago's bascule bridge designs had evolved to eliminate the obstructive overhead bracing by use of pony and deck truss superstructures and the unsightly external rack was replaced with an internal rack design. It would be interesting to know why this older design was used here at High Street.