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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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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 60 MPa and 15.2 mm diameter prestressing strands was used. The two spans are 34 m and 30 m in length and the depth of the superstructure is 0.9 m.

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.