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How was the alignment of the West Area CSO Storage Tunnel selected?

April 26, 2017alignment Selected west area cso storage tunnel

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How was the alignment of the West Area CSO Storage Tunnel selected?

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The alignment of the West Area CSO Tunnel was selected so that wastewater flow could be intercepted from the existing trunk and relief sewers in the Clear Creek, Tanyard, and North Avenue basins. It was also selected based on the best possible geological conditions for tunneling, thus minimizing the cost of tunnel construction.