A Grand Canyon National Park pipeline carrying potable water below the rim ruptured on Thursday, temporarily halting cross-canyon travel. Rangers closed a one-mile section of the North Kaibab Trail when an exposed segment of the 16-mile water line washed out a 45-foot portion of the path. Maintenance crews expect to complete repairs to the pipe and reopen the trail by next Friday. The Park Service cautioned hikers to treat or filter water in the canyon in the meantime. This is the park's third pipeline breakage in a week, incidents that park officials attribute to the age of the pipes, which were installed in the 1960s.
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