ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.
Issue link: http://www.aspiremagazinebyengineers.com/i/319569
After 10 years of effort, the city of Batavia, Ill. has a new Wilson Street Bridge named the William J. Donovan Bridge, a three-span structure and the only road bridge in Batavia over the Fox River. The structure was designed to complement the surrounding area of downtown Batavia, as well as pay respect to the beloved structure it was replacing. The project included replacement of the existing structure, a three-span, earth-filled spandrel concrete arch bridge built in 1911 that was showing significant signs of distress. Material testing indicated high levels of chlorides in the concrete leading to corrosion of the reinforcement. The south spandrel wall had cracked and separated from the arch ring. It was determined that the major rehabilitation required for an arch-type structure of this age would be difficult and generally not cost effective. During the planning phases of the project, the city of Batavia established several key objectives: • provide an aesthetically pleasing replacement structure • complement the history and civic pride of Batavia • provide connections to the Fox River including stairs • add river observation outlooks • include pedestrian paths below the bridge • enhance the area around the bridge including the river walks, bike path, and river viewing area • enhance the downtown area as a focal point for furthering Batavia's downtown development plans new Bridge The replacement structure consists of a post-tensioned concrete deck slab with parabolically shaped haunches. The structure is arranged in three continuous spans of 74 ft, 88 ft, and 74 ft. The bridge is 72 ft 10 in. wide across the deck excluding the sidewalk outlooks. The superstructure depth is 4 ft 0 in. at the piers and 2 ft 0 in. at each midspan. The existing roadway profile could not be significantly changed due to the proximity of buildings along the bridge approaches. The post-tensioned concrete superstructure provides a thin structure depth to allow clearances profile WILLIAM J. DONOvAN (WILSON STREET) BRIDGE / BATAVIA, IllINoIS Br IDge Des I gn e ngI neer : H.W. lochner Inc., chicago, Ill. ArchItecturAL consuLtAnts: Johnson-lasky Architects, chicago, Ill., and lane Allen Architects Inc., Batavia, Ill. construct Ion engIneerIng AnD InspectIon: AEcoM, chicago, Ill. pr Ime contrActor: Illinois constructors corp Inc., Elburn, Ill. temporArY Works engIneer: Westbrook Associated Engineers Inc., Spring Green, Wis. concrete suppLIer: Prairie Materials, Batavia, Ill. precAster: cary concrete, West chicago, Ill. by Daniel Herring, Richard Cholewa, and W. David Shannon, H.W. Lochner Inc. Wilson street Bridge replacement Engages Community elegant design expresses both past and future, opening up the river below the roadway The Wilson Street Bridge over the Fox River looking toward part of downtown Batavia. Photo: Staff Davis, Staff Davis Photography. 16 | ASPIRE , Fall 2010 P R O J E C T ASP10-1704.indb 16 9/17/10 2:05 PM