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ACI Spring 2010 Convention
March 21 - 25, 2010
Marriott Rivercenter Hotel & Henry B. Gonzalez Convention Center -- San Antonio, TX

NRMCA Sustainable Conference
April 12 - 15, 2010
Tempe, AZ

International Parking Institute Conference & Expo
May 10 - 12, 2010
Mandolay Bay - Las Vegas, NV

International Bridge
Conference 2010

June 6 - 9, 2010
David L. Lawrence Convention Center - Pittsburgh, PA

ACI Fall 2010 Convention
October 24 - 28, 2010
The Westin Convention Center -- Pittsburgh, PA

 
Chapter 5 - Silica-Fume Concrete Projects
HPC Bridge

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Slide
The Colorado DOT wanted to reduce the number of spans for this bridge while maintaining a shallow superstructure to preclude changes in grade. They determined that high-strength, precast adjacent box girders would provide the best solution for their needs.

A combination of concrete with a compressive strength of 10,000 psi and 0.6 in. diameter prestressing strands was used. The two spans are 112 ft and 97 ft in length and the depth of the superstructure is 36 in.

For additional information on this bridge, please see:

Leonard, Mark A., "I-25 Over Yale Avenue -- The Thin Solution," HPC Bridge Views, No. 3, May-June, 1999, p. 2.