THE CONCRETE BRIDGE MAGAZINE

SPRING 2008

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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44 | ASPIRE , Spring 2008 The Texas Department of Transportation (TxDOT) employs innovative techniques to accelerate bridge construction while providing durable, economical, and aesthetically pleasing solutions on a wide variety of projects. From such bridges as the Jim Cowan Memorial Bridge at Lake Belton to the Cottonwood Creek and Battleground Creek Bridges, fully precast bridge systems have played an important role in reducing the impact of bridge construction to the traveling public in Texas' rural areas. Reconstruction of I-35, the main north- south artery and a crucial commercial corridor in central Texas, necessitated the construction of several overpasses. profile Loop 340 Bridges / WAco, TExAS ENGINEER: Texas Department of Transportation, Austin, Tex., and Structural Engineering Associates, San Antonio, Tex. PRIME CONTRACTOR: Archer-Western contractors, Arlington, Tex. PRECASTER: Heldenfels Enterprises Inc., San Marcos, Tex., a PcI-certified Producer PRECAST SPECIALTY ENGINEER: Structural Engineering Associates, San Antonio, Tex. PRECASTER'S ENGINEER: Unitech consulting Engineers, San Antonio, Tex. AWARD: co-Winner of 2007 PcI Design Award for Best Bridge with Spans Between 75 and 150 ft PREASSEMBLED BRIDGE Facilitates Overpass cOnstructiOn by Jamie Griffin, Lloyd Wolf, Gregg Freeby, Michael Hyzak, David Hohmann, and Randy Cox, Texas Department of Transportation Typical pretopped U-beam section. The bridges incorporated pretopped U-beams, precast concrete column shells, and preassembly. The design challenge was to provide an aesthetically pleasing set of bridges that minimized traffic disruption. Typical pretopped U-beam section. ASPIRE_spring08.indb 44 3/24/08 1:43:37 PM

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