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City Of Flagstaff Partners With The Coconino National Forest For Inner Basin Water Pipeline Repairs

The City of Flagstaff and the Coconino National Forest are partnering on a plan to begin repairing flood damage to the Inner Basin Water Pipeline. The pipeline, which was damaged due to post-wildfire flooding caused by the Pipeline Fire, has been losing millions of gallons of water each day. Repair work along the 13-mile pipeline will address 45 locations along Schultz Pass Road and Waterline Road that were damaged due to storm flows, including three known breaks in the waterline pipe. While much of the pipeline itself, located inside the burn area, is intact, some sections are broken and unsupported due to the loss of roadway. Construction will repair the areas around the water pipeline to provide support, in addition to reducing further degradation of the areas. The Inner Basin pipeline has been serving the City of Flagstaff for more than 120 years and provides roughly 20 percent of the city’s potable water supply during the summer. Construction is expected to begin mid-July 2023 and is anticipated to last through November 2024.

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