Office of Special Funded Projects
For More Information
All structures - both state and local - that have the Type Selection meeting held on or after October 1, 2006 must be designed using the new LRFD specifications. Currently the primary design specification for California structures consists of the following:
The Seismic Design Criteria will continue to be the governing specification for the seismic design of structures. Other Caltrans manuals that govern structure design such as Bridge Design Aids and Bridge Memos to Designers will eventually be updated in order of importance to design production. The Bridge Design Practice manual will eventually be rewritten.
Bridge decks and soffits will be designed per the new Memo to Designers 10-20.
Following are links to documents issued by the Federal Highway Administration and the California Department of Transportation ordering the implementation of the LRFD Specifications.
|Federal Highway Administration|
|June 2000: Load and Resistance Factor Design Policy Memorandum|
|January 2007: Clarification of Load and Resistance Factor Design Policy Memorandum|
|California Department of Transportation|
|March 2014 - Implementation of the 6th Edition of the AASHTO LRFD Bridge Design Specifications|
|December 2011 - Implementation Memorandum for revisions to CA Amendments.|
|January 2009- Implementation of the 4th Edition of the AASHTO LRFD Bridge Design Specifications|
|March 2007 : Implementation of the AASHTO LRFD Bridge Design Specifications|
|April 2006: Implementation of the AASHTO LRFD Bridge Design Specifications|
|January 2006: Notice of Change in the Bridge Design Specifications|
|FOR MORE INFORMATION|
|For structures on the State highway system contact the Liaison Engineer assigned to your Transportation District:|
|Office of Special Funded Projects - Liaison Engineers|
|For structures on local roads and highways contact the Local Assistance Engineer assigned to your city or county:|
|Office of Structures Local Assistance Telephone 916-227-3330|