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Posey Tube

Photos 

Posey Tube

Eastbound

Photo taken by Craig Philpott in April 2010

Enlarge

BH Photo #161612

Map 

Street View 

Description 

The plaque notes consultants of Clifford Holland of Holland Tunnel fame, and Ole Singstad who designed the ventilation system, including the first in the Holland Tunnel, that made long automotive tunnels possible.

This was constructed using the immersed tube method (http://en.wikipedia.org/wiki/Immersed_tube) and is thus actually not a tunnel in the sense of being dug or bored.

Facts 

Overview
Immersed Tube tunnel under Oakland Inner Harbor on State Route 260
Location
Alameda, Alameda County, California
History
Built 1927, seismic retrofit 2000
Builders
- Clifford Holland
- Ole Singstad of Agdenes, Norway
- William Burr
Design
Immersed tube construction. Art deco ventilation buildings.
Dimensions
Span length: 3,545.1 ft. (0.7 mi.)
Total length: 3,545.1 ft. (0.7 mi.)
Approximate latitude, longitude
+37.79142, -122.27473   (decimal degrees)
37°47'29" N, 122°16'29" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/563857/4182920 (zone/easting/northing)
Quadrangle map:
Oakland West
Inventory number
BH 44814 (Bridgehunter.com ID)

Update Log 

  • September 12, 2014: New photos from Royce and Bobette Haley
  • December 24, 2011: New photo from Brian Smith
  • August 16, 2011: Updated by Clark Vance: Added description and engineering information
  • August 16, 2011: New photo from Brian Smith
  • April 8, 2010: Added by Craig Philpott

Sources