Vivian Chang
President
email:
Telephone:
415 989 4551 x208
Registration:
Professional Engineer in California (C37966)
Education:
M.S. - Civil Engineering, University of California, Berkeley, 1982
B.S. - Civil Engineering, University of California, Berkeley, 1981
Employment History:
1994-presentOPAC Consulting Engineers, President and Principal Engineer.
1991-1994Parsons Brinckerhoff Quade and Douglas, Supervising Structural Engineer.
1982-1991T.Y. Lin International, Design Engineer to Project Manager.
Professional Experience
Vivian Chang has 39 years of experience in the design, project management and construction support of highway and transit bridges. Ms. Chang has designed a variety of bridge and transit structures that include prestressed concrete box girders, prestressed segmental concrete box girders, steel arch, and cable supported structures. She has provided project management and construction support engineering on various complex bridge and transit projects.
Key Qualifications
- Management of bridge projects.
- Management of large-scale metropolitan rail transit projects.
- Production of contract documents for bridge and rail transit projects.
- Development of bridge and transit structure erection procedures.
- Design of bridge and transit structures to accommodate strict aesthetic, urban and traffic constraints.
- Design of transit bridges utilizing segmental cantilever construction method.
- Seismic analysis of bridge structures.
- Design of pedestrian bridges.
- Design of long span bridges.
- Structural modeling and analysis.
- Technical support during construction.
Relevant Project Experience
Selected projects by Vivian Chang are listed below:
BART Warm Springs Extension - Design and Construction Support
Hoover Dam Bypass: Colorado River Bridge - Construction Engineering
Construction engineering for a 1,090 ft concrete arch bridge downstream of the Hoover Dam.
Nevada-Arizona. Construction completion 2010
Nanning Bridge - Design
A 300 m span steel arch bridge across the Yong River. The arch ribs are steel box sections and the deck consists of a steel box girder with an orthotropic deck.
Nanning City, China. Construction completed 2009
BART Earthquake Safety Program - Seismic Retrofit Design and Construction Support
Performed seismic vulnerability studies on multiple BART viaducts
San Francisco Bay Area, California. Design completed 2009
Third Carquinez Strait Bridge - Design and Construction Support
A 728 m span suspension bridge with a steel orthotropic deck. The new suspension bridge replaced a 75 year old truss bridge across the Carquinez Strait.
Sacramento River, Crockett - Vallejo, California. Construction completed 2004
Berkeley I-80 Pedestrian Overcrossing - Design and Construction Support
A 90 m span arch bridge for pedestrian and bicycle across the I-80 freeway in Berkeley. The steel arch ribs consist of curved inclined steel pipes in a basket handle configuration.
Berkeley, California. Construction completed 2002
SFIA Airport Rail Transit Guideway - Design
Design of an elevated guideway for automated transit system at the San Francisco International Airport.
San Francisco, California. Construction completed 2002
SFIA Elevated Circulation Roads - Design and Construction Support
Design of a single-level and double-deck concrete box girder structure to provide access between the freeway and international/domestic terminals at the San Francisco International Airport.
San Francisco, California. Construction completed 2000
BART Dublin/Pleasanton Extension - Design Review & Construction Support
The 14 mile BART Dublin/Pleasanton Extension includes 19 bridges, one cut-and-cover tunnelsand 2 stations.
Dublin-Pleasanton, California. Construction completed 1998
Rosecrans/Aviation and Kramer Bridges - Design
Segmental concrete bridges to cross a heavily traveled artery and a contaminated site.
Hawthorne, California. Construction completed 1991
Cochrane Bridge - Construction Engineering
Redesign for construction of 195-ft long prestressed concrete box girder segments cast on ground and lifted into final position.
Mobile, Alabama. Construction completed 1988