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.

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Page 19 of 55

The award-winning Haven Avenue Grade Separation Bridge has become a stunning new landmark in Rancho Cucamonga, Calif. Built with precast concrete, the colorful and innovative bridge has remedied multiple problems, including massive traffic congestion. By using architecturally enhanced prefabricated concrete elements, in the hands of a highly effective team, the project was completed ahead of schedule and under budget. This p r o j e c t p u t s t o r e s t t h e n o t i o n that bridge underpasses have to be u t i l i t a r i a n t o m e e t s c h e d u l e a n d budgetary constraints. Rancho Cucamonga lies at the base of the picturesque San Gabriel Mountains and is located roughly 39 miles east of Los Angeles. The city's population has grown by about 35% in the last decade due in large part to two east-west highways—I-10 and State Route 210— that traverse the city. These highways are connected perpendicularly by Haven Avenue, a six-lane divided arterial that leads to Rancho Cucamonga's city center. Increasing traffic and demand for transportation services have also grown along with the city's population. The Metrolink commuter train and Burlington N o r t h e r n S a n t a F e ( B N S F ) t r a c k s intersected Haven Avenue at grade near the freeway interchanges. In recent years, rail service has increased to roughly 40 trains per day, which resulted in long traffic delays for the nearly 20,000 daily motorists traveling north and south on Haven Avenue. Before the bridge was built, vehicular traffic idled roughly 64 minutes daily, while emitting about 2.5 tons of carbon dioxide into the atmosphere. The solution was to separate vehicle and train traffic by lowering the Haven Avenue roadbed by 28 ft and building profile HAVEN AVENu E GRADE SEPARATION BRIDGE / RANCHO CUCAMONGA, CALIFORNIA B RIDgE DESIgn EngInEER: PBS&J, an Atkins company, Orange, Calif. ROADwAy DESI gn AnD gEnERAL EngInEERIng SERVICES: URS Corporation, Santa Ana, Calif. p RIME COnTRACTOR: KEC Engineering, Covina, Calif. BEAM pRECASTER: Pomeroy Corporation, Perris, Calif., a PCI-certified producer p ILASTER, BALUSTRADE, AnD MEDALLIOn pRECASTER: QuickCrete, Norco, Calif. CAST-In-pLACE COnCRETE SUppLIER: Chaparral Concrete Company, Glendora, Calif. p OST-TEnSIOnIng COnTRACTOR: DyWIDAG-Systems International USA Inc., Long Beach, Calif. by Miguel A. Carbuccia and Sam S. Xie, PBS&J, an Atkins company Rancho cucamonga's Haven avenue Grade Separation BridGe A world-class design utilizing precast concrete turns an underpass bridge into a city attraction The Haven Avenue Grade Separation Bridge stands as a dramatic addition to the City of Rancho Cucamonga, Calif. Photo: City of Rancho Cucamonga. 18 | ASPIRE , Spring 2011 Book_Spr11.indb 18 3/30/11 5:09 PM

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