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ASCE-GI SF Chapter & ASCE Golden Gate Branch
Peony Seafood Restaurant
388 9th St. Suite #288
Oakland, CA USA
Thursday, February 28, 2019, 6:00 PM - 8:30 PM PDT
Category: Other

ASCE-GI & ASCE Golden Gate Chapters Dinner Meeting

New Crystal Springs Dam Bridge Supported on Dam Crest on Seismic Isolators

Presented by: Roupen Donikian, P.E., Senior Engineering Manager at WSP


The new bridge is built on top of Lower Crystal Springs Dam, 7 feet higher than the old bridge above the dam to clear the parapet walls that had been raised by 7 feet. The bridge is a 630 feet long, 7-span post-tensioned concrete structure supported on isolation bearings for earthquake resistance. The San Andreas fault is only about a quarter mile away. The isolation system involves lead-rubber bearings and special seismic joints at the roadway approaches and pedestrian access to accommodate large displacements. This is a unique bridge, and Roupen Donikian, P.E. presented its seismic design at the 7th National Seismic Conference in 2013. The bridge is complete, and the facility is expected to open soon.

Mr. Roupen Donikian, P.E. is a Senior Engineering Manager at WSP and currently serves in the capacity of a Senior Technical Principal in Earthquake Engineering in the Geotechnical and Tunneling Group. He has more than 35 years experience in structural engineering, applied mechanics, and earthquake engineering. He has worked on major bridge and tunneling projects nationally and internationally, including the Doyle Drive Replacement, MUNI Central Subway, San Francisco-Oakland Bay Bridge East Span Replacement, BART underground stations seismic evaluation and retrofit, and the seismic retrofit of the Richmond-San Rafael and San Mateo-Hayward Bridge projects in the Bay Area. Roupen's expertise includes: numerical modeling and analysis of large-scale structures; soil-structure interaction (SSI) analysis; structural stability analysis; and modeling & analysis of deep foundations. Roupen holds an MEng degree in Applied Mechanics from the University of California at Berkeley, and a BS degree in Aeronautical Engineering from Northrop University.


$45 - Members and Guests
$50 - Non-Members and Walk-ins
$15 - Students

Please register if you plan to attend - walk-in availability will be limited.

Register Here

Contact: San Francisco Geo-Institute (SFGI), ASCE | [email protected]