Repository: UIHistories Project: UI Foundation Series - Bulletin 3 (1936) [PAGE 1]

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UNIVERSITY OF ILLINOIS BULLETIN

P U B L I S H E D W E E K L Y BY T H E UNIVERSITY OF ILLINOIS

THIRD FOUNDATION NUMBER

Tuesday, June 2, 1936 Vol. X X X I I I , No. 40

W O R L D ' S L O N G E S T S U S P E N S I O N B R I D G E : SO GREAT IS T H E SAN F R A N C I S C O - O A K L A N D BAY B R I D G E T H A T T H E H A L F of it seen in this picture is the world's longest suspension bridge, with its two miles of barrel-sized cables tying the metropolis of San Francisco (o the mid-bay island of Yerba Buena. The two main spans of this suspension bridge are each 2310 feet long and the side spans are 1160 feet in li-ntfth. The bridge will be open to motorists in November, 1936, according to Governor Frank F. Merriam and the California Toll Bridge Authority.

Illinois Graduates Prominent in San Francisco-Oakland Bay Bridge

' p ( ) A N Y O N E who has seen the San middle of the Bay as shown in the Charles E. Andrew, class of 1906, as picture. John R. Fox, '06, is assistant I Francisco Bay and the Golden Gate state bridge engineer for California, has contracting manager for Columbia Steel, had a great deal to do with both the projects in process, and even to one and Charles S. Conrad, T9, is manager design and the construction of this who merely reads the statistics, their of the stainless steel department of the giant project. H e supervised the work immensity is a continual source of wonsame firm. Also to be mentioned in of 75 to 100 designing and construction der. When one remembers that the view this connection is Professor W. M. engineers, and is at the present time as shown above is merely one half of Wilson of the University, who is carrysuperintendent of construction. (he San Francisco-Oakland Bridge, exing on a cooperative investigation, The acting state bridge engineer for tending from the San Francisco shore "Reverse Stresses in Riveted ConnecCalifornia is F. W. Panhorst, 1915. (o Yerba Buena Island and that the tions." H. G. Butler, consulting engineer of project includes a tunnel through the San Francisco, is collaborating with As will be seen from the photograph, island and examples of cantilever and two railroad systems (Southern Pacific the work of suspending the bridge decks uidiiuiry bridge construction for another and Key) in financial and track arrangefrom the cables has already been begun. l wo and a half miles to the Oakland ments. I. O. Jahlstrom, '25, is resident By the time this bulletin appears, this shore, one receives some impression of engineer on the West Bay substructure. work will have been practically comI be size of the structure. T h e twentyN. W. Reese, '20, is resident engineer of pleted as far as the structural steel did it inch cables, which show like the San Francisco anchorage contract is concerned. These deck bridges will spindling cords in the picture, connect of the Healy-Tibbits Construction Comfurnish six lanes of automobile traffic I lie towers and eventually carry the pany. This anchorage is a massive block on the upper deck and two lanes of double-deck steel structure on which of concrete as big as the Palace Hotel trucks plus two sets of interurban I he drives and passenger walks a r e laid. in San Francisco and corresponds to tracks on the lower deck. The process This structural steel can be seen hangsome extent to the anchorage in the of spinning the giant cables 28^4 inches ing from the cables at two points. in d i a m e t e r c a u s e d The lowers are, by the an i n t e n s e i n t e r e s t . way, over five hundred These cables have confeel high, and their sumed 55,000 miles of foundations extend 235 steel thread, each cable feel down into the Bay. containing 17,464 steel This San Franciscowires, approximately of Oakland Bridge job pencil size, the spinwith its four and a ning having been ac^half miles of clearcomplished by a mewater spans is pretty c h a n i c a l s h u t t l e or largely a University of spider. Illinois alumni projT h e total cost of the ect. The late Mr. E. bridge is estimated to J. Schneider, graduate be $78,000,000. of 1900, who was presiT h e Golden Gate dent of the Columbia Bridge, a separate Steel Company, the project and the longest holder of the contract suspension span in the for the entire superworld has as its resistructure involving over dent engineer Russell ^22,000,000, was the C H R I S T M A S E V E I N SAN F R A N C I S C O . L I K E GIGANTIC C H R I S T M A S trees, festooned with candies that cast a mile-long beam and draped with tons of Cone, '22, and Isidor resident contracting tinsel of the strongest steel, the towers of the San Francisco-Oakland Bay Bridge engineer and died "on Raffin, '12, manager for were the community Christmas tree of the million and three-quarters of people the job" early this year. one of the contractors, living around San Francisco Bay last Christmas eve.