Grand Canyon Sets Water Recovery Plan After Bright Angel Canyon Flash Flood

Grand Canyon National Park says it has begun a recovery plan to restore reliable water service after the August 29 flash flood damaged key infrastructure in Bright Angel Canyon and the Phantom Ranch area. The park remains open on both the South Rim and North Rim, though visitors should expect modified operations and closures in affected inner-canyon locations.

According to the National Park Service, crews are continuing search operations, assessing damage, stabilizing affected areas, and working to protect the South Rim water supply. The park now expects its path to restoring water service to take weeks rather than months, based on current progress.

Temporary Bright Angel Creek intake work begins

The flood destroyed the water intake at Bright Angel Creek and caused major damage at the Roaring Springs intake area. It also damaged about 40 percent of the older Transcanyon Waterline between Phantom Ranch and the North Rim, the park said.

To restore water movement through the system, engineers are designing a temporary intake at Bright Angel Creek. Construction activity is beginning this week under a modification to the existing Transcanyon Waterline contract. When complete, the temporary intake is intended to pump about 500 gallons per minute, matching the system capacity available before the flood.

That temporary facility would send water through the new Transcanyon Waterline system and allow the park to start rebuilding South Rim water storage while work continues on a permanent intake. Electrical service needed for the temporary intake has been restored, while debris removal and site preparation continue.

The National Park Service said the newer pipeline infrastructure on the south side of the canyon was not damaged. Before the flood, the park had been slightly more than a month from starting operation of that new system. The agency is now speeding up work already in progress to bring it online.

South Rim water remains safe, but conservation is still requested

South Rim tap water remains safe to use, and Grand Canyon National Park says there is no boil-water advisory. Still, the South Rim is operating on stored water while repairs and temporary intake construction move forward, making visitor conservation important.

During the latest operational period cited by the park, stored water levels dropped by about 0.37 feet. The park said normal operating conditions would have resulted in a decline of roughly 0.7 feet a day. Current conservation measures are reducing potable-water demand by about 137,000 gallons per day, extending the time available for repair crews to complete critical work.

• Bring drinking water for a South Rim visit.
• Use water carefully throughout the visit.
• Check current park conditions before traveling, especially for inner-canyon plans.
• Expect modified operations and closures in areas affected by the flood.

The park is placing additional support equipment across the South Rim community to reduce demand on the regular system. Five 2,500-gallon potable-water tanks have already been installed, and more than 13,500 gallons of bottled drinking water has been staged. The response also includes handwashing stations, portable showers, laundry facilities, and portable toilets.

Water treatment work and system monitoring continue

Crews are accelerating testing and commissioning at the new South Rim water treatment plant. The National Park Service is working with the Arizona Department of Environmental Quality to meet requirements and bring the facility online safely as soon as possible.

Teams are also watching the distribution network for leaks and unusual water use. The park said some leaks can be fixed immediately, while other decisions require careful review. In some situations, an affected section must be flushed before it can safely return to service, and that process may use more water than the leak itself. Crews are evaluating each case to determine the approach that saves the most water overall.

The National Park Service is also reviewing possible supplemental water supplies with the Arizona Department of Environmental Quality, contractors, and potential suppliers. Any water added to the existing system must meet water-quality and chemical-compatibility standards so it does not damage treatment or distribution infrastructure.

Search remains active near Phantom Ranch and along the Colorado River

Search operations connected to the August 29 flood are still underway. The park reported that one person remains missing and unaccounted for. Search teams are working in the delta area near Phantom Ranch, while river patrol crews search downstream along the Colorado River and nearby areas where flood debris may have traveled.

Grand Canyon National Park said it will continue to provide updates as the search, water-system repairs, and longer-term recovery work proceed.

Official source: Read the original Grand Canyon National Park news release.

For more current park information, see Grand Canyon News & Updates.

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