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Yerba Buena Island Transition Structures

San Francisco-Oakland Bay Bridge, California

Project Description

The Yerba Buena Island (YBI) transition structure links the new Self-Anchored Suspension Span (SAS) of the San Francisco Oakland Bay Bridge to Yerba Buena Island, transitioning the East Span’s side by side road decks to the upper and lower decks of the YBI tunnel and West Span.

Bay Bridge News Article

 

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Our Role

Jason Hatcher was employed as a Lead Senior Draftsman by Parsons from September 2001 - June 2007. During that time, Jason performed many tasks on the Yerba Buena Island Transition Structures (SFOBB) project while at Parsons, continuing on as a sub-contractor to Parsons when he founded Hatcher Technical in 2007. His work on this project included;

  • Constructability review to ensure the transition substructure would create minimal conflicts as the vertical pier reinforcement extended into the heavily congested superstructure pier caps

  • Created three dimensional models to identify and resolve potential conflicts in the design phase

  • Produced fully integrated shop drawings for the transition superstructure

  • Prepared fully integrated shop drawings and 3D models of pier footings and columns

  • Constructability analysis of the integration of pier column rebar extending into superstructure pier tables and provided detailed rebar layouts to include with superstructure design drawings

Location

 

Yerba Buena Island, San Francisco, California

Owner

 

Caltrans

Contractor (Design-Build)

C.C. Myers

MCM Construction

 

Designer

 

Caltrans

Construction Engineer

Parsons

Total Contract Value

Timeline

 

2007 - 2009

Construction Methods

Cast-in-place reinforced concrete with post-tensioning

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