Asphalt Core Technology Proposed for Larimer County Dam – 75,000 Cubic Yards of HMA Estimated

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The graphic shown, provided by Northern Water, depicts the 350′ Chimney Hollow Reservoir, located southwest of Loveland, after it is built. The project is estimated at $400 million.   (Link to article) When Chimney Hollow Reservoir is built, the dam will be one of the first in the United States with an asphalt core – a method developed in Germany in the 1960s and used widely in other countries.  The reservoir, located southwest of Loveland, will have one large and one small dam, allowing it to hold 90,000 acre-feet of water for 13 providers, including the city of Loveland.  Asphalt Core Dams (Link)    The project is estimated at $400 million with 75,000 cubic yards of asphalt.  It is being designed by Stantec and planned as a 3-1/2 year project with asphalt placed in 2-1/2 years.  A pre-qualification list will be developed in January and the project bid in June, 2018.  The asphalt will be hydraulic asphalt with a high asphalt binder content.  They are planning an outreach open house in the fall that will include a networking forum, presentation, Q/A, and site visit.  More info: Joe Donnelly, Assistant Project Manager, Northern Water, (970) 622-2232.

Follow Tom Clayton:

Director of Training and Member Services since April 2005. Co-chair of the LabCAT Technical Committee. As well as LabCAT Certification Levels A-E, I and S. A Colorado and Denver native, and have more than 38 years of experience in the Geotechnical Engineering Industry. I am also the CAPA Web Administrator and Author.