Tour of Orthotropic Steel Bridges in Northern California
Written by: American Society of Civil Engineers, Capital Branch
August 23-29, 2004 • Sacramento, CA
(Program subject to revisions)
Saturday Tour (Separate Registration) $80.00
This all-day tour includes visits to 9 orthotropic bridges built and in operation in northern California. Orthotropic steel decks in North America are very rare; only 51 out of 650,000 inventoried bridges have orthotropic steel decks. California has 25,000 bridges, which represents 4% of all bridges in the USA. They are a vital part of the California infrastructure.
This tour is hosted by the Golden Gate Section of ASCE. It includes a luncheon at the Carquinez Strait Bridge, and dinner in a bayside location.
Proposed Order of Visit (Year Bridge Opened to Traffic)
The New Carquinez Straits (2003)
Maritime Off-Ramp (1997)
SFOBB San Francisco Oakland Bay Bridge (2005)
The Miller-Sweeney Bascule Bridge on Alameda Island (1974)
BART Weathering Steel Twin Steel Bridges - Berkeley (1972)
The North 680 to West Connector Bridge of Danville, CA (1967) was built as an experimental bridge to check the accuracy of Caltrans design software "Orthotropic Plate Design" (1967) and actual capacities, various trapezoidal ribs, and deck plate thickness
San Mateo Hayward (1968)
The Golden Gate Bridge Redecking (1985)
The Ulatis Creek I-80 wearing test bridge, Vacaville (1967)
Sunday Tour (Separate Registration) $65.00
This afternoon-to-evening tour to the site of the new Calatrava cable stayed glass deck "Sundial" bridge (1977), is hosted by the Shasta Branch of ASCE, and includes a "no host" dinner at a nearby location, and a tour of the Turtle Bay Museum with 2 exhibits on display
Dr. Calatrava, an architect of an aesthetic sensibility so refined he has been described by Time magazine as the poet of glass and steel. He just completed the new Greek Olympic Stadium, and was recently chosen to design the Port Authority Trans-Hudson (PATH) Terminal at the World Trade Center site. Calatrava has only two completed structures in the United States - the Redding bridge and a stunning addition to the Milwaukee Art Museum, which looks like an enormous abstract white bird. He was born in Spain and makes his headquarters in Zurich. The design of the Sundial Bridge is so airy in concept that it will at no point touch the water. That's an important environmental as well as artistic consideration, since this particular bend in the river, called Turtle Bay, serves thousands of spawning Chinook salmon, according to the July/August issue of VIA magazine.
|#1 - New Carquinez Suspension Bridge in Crockett, California (Rendering by CALTRANS)||#2 - Maritime Off-Ramp, I-880 Oakland, California, beside SFOBB Toll Plaza (Photo by Bob Colin of CALTRANS)||#3 - Artist's rendering of new East Self-anchoring San Francisco Oakland Bay (SFOBB) Bridge Yuerba Buena Island, California (Courtesy of CALTRANS by T Y Lin International + Moffatt & Nichol)|
|#4 - Miller-Sweeney Bascule Bridge in Alameda Island, California (Photo by AISC Prize Bridges 1974)||#5 - BART Weathering Steel Twin Steel Bridges in Berkeley, California (Photo Augusut, 2002 courtesy and by Alfred R. Mangus, PE of ASCE)||#6 - The North 680 to West Connector Bridge of Danville, California (1967) (Photo August, 2002 courtesy and by Alfred R. Mangus, PE of ASCE)|
|#7 - San Mateo-Hayward Bridge - San Francisco Bay, California (1967) (Photo August, 2002 courtesy and by Alfred R. Mangus, PE of ASCE)||#8 - Golden Gate Bridge, San Francisco, California (Photo by James F. Lincoln, ARC Welding Foundation)||#9 - The Ulatis Creek I-80 wearing test bridge in Vacaville, California (1967) (Photo May, 2000 courtesy and by Alfred R. Mangus, PE of ASCE)|
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