Grand Canyon water update

Grand Canyon National Park has eased some South Rim water restrictions after repairs got water pumping again, but the system is still fragile. (nps.gov) The National Park Service said on April 16 that conservation measures would begin easing at noon on Friday, April 17, after progress on the Transcanyon Waterline let crews pump water back to the South Rim. Concessionaire-run lodging returned to full capacity that evening. (nps.gov) Some limits are still in place. Mather and Desert View campgrounds remain open only for dry camping, water spigots there are still off, Camper Services remains out of service, and parkwide fire restrictions still ban outdoor wood and charcoal fires. (nps.gov) The pipeline behind the disruption is a 12.5-mile line built in the 1960s that carries Roaring Springs water from the North Rim to the South Rim and inner-canyon facilities. The Park Service says it supplies drinking water and fire protection for South Rim facilities and more than 800 historic buildings. (nps.gov) The line has become a recurring failure point. The Park Service says it is beyond its expected useful life, has suffered more than 85 major breaks since 2010, and is being replaced because repairs in the inner canyon are expensive and often require trail or helicopter access. (nps.gov) The latest round of tighter restrictions began after an April 8 notice tied to “significant breaks” in the waterline, with no water then being pumped to the South Rim. Inside-park lodging had been kept at reduced occupancy, while hotels in Tusayan outside the park remained open. (nps.gov) The local repair comes as the larger Colorado River system is under new stress. The Bureau of Reclamation announced on April 17 that it would release 600,000 to 1 million acre-feet from Flaming Gorge Reservoir and cut Glen Canyon Dam releases through September 2026 from about 7.5 million acre-feet to 6 million acre-feet. (ksjd.org) Those emergency steps are aimed at Lake Powell, where forecasts showed the reservoir could fall below the 3,490-foot minimum power pool as soon as August, the level where Glen Canyon Dam can no longer generate hydropower. Utah and other Upper Basin states approved the Flaming Gorge plan on April 22, while warning it will also hurt recreation and local water resources upstream. (sltrib.com) A separate Grand Canyon story unfolded in the rocks this month. On April 16, the U.S. Geological Survey said a new study in *Science* found strong evidence that spillover flooding from ancient Lake Bidahochi, east of the canyon near present-day Flagstaff, helped establish the Colorado River’s course through what is now the Grand Canyon. (usgs.gov) For visitors this week, that leaves two timelines at once: a canyon still relying on a patched 1960s waterline, and a landscape scientists say was shaped by a lake spillover roughly 6.6 million years ago. (nps.gov; usgs.gov)