Source: Portland Cement Association, Skokie, Ill.
Jurors recently honored the Mike O’Callaghan-Pat Tillman Memorial Bridge, spanning the Black Canyon between Arizona and Nevada, with special recognition as an outstanding achievement in the PCA’s 13th Biennial Bridge Awards Competition. The competition recognizes excellence in design and construction of concrete bridges. PCA will recognize the winners at the American Concrete Institute Fall 2012 Convention, October 21, in Toronto.
Additional winning projects were Delta Ponds Pedestrian Bridge, Eugene, Ore.; Bridge No. 207, Twyckenham Drive over St. Joseph River, South Bend, Ind.; US 191 Colorado River Bridge, Moab, Utah; I-64 Kanawha River Bridge, Kanawaha County, W.Va.; South Maple Street Bridge, Enfield, Conn.; and, Wapello County Bridge, Wapello County, Iowa.
The 2012 competition attracted 22 entries from Canada and the United States, covering a variety of structure types and construction methods, with all structures essentially completed between September 2009 and September 2011.
Winning projects were selected based on creativity, functionality, aesthetics, sustainability, and economy in design and construction by a jury of three bridge professionals: Fred Gottemoeller, principal, Bridgescape LLC, Columbia, Md.; Myint Lwin, director, Office of Bridge Technology, Federal Highway Administration, Washington, D.C.; and, Malcolm Kerley, chief engineer, Virginia Department of Transportation, Richmond, Va.