Zion National Park Emergency Closures: Flash Flood Warnings Shut Iconic Narrows—Is Your Trip at Risk?

Zion National Park visitors planning early-summer trips should build flexibility into their itineraries after a large rockfall on May 20 temporarily closed State Route 9 between Canyon Junction and the east entrance, blocking the park’s main trans-Utah gateway and pausing private-vehicle traffic on the scenic Zion–Mount Carmel Highway. While shuttle buses leaving the Visitor Center are still reaching the canyon, motorists arriving from U.S. 89 must detour up to 90 miles via I-15, adding two hours of drive time. The National Park Service says geotechnical crews are scaling loose rock and bringing in high-reach excavators to clear refrigerator-sized boulders. Officials expect at least a partial reopening before the Memorial Day rush but warn that intermittent one-lane closures could last through June for slope stabilization. Shuttle season ramps up Beginning May 22 the Zion Canyon Shuttle will run daily from 6 a.m. to 8 p.m., the only way to access Emerald Pools, Angels Landing and the Narrows trailheads once the scenic drive closes to personal cars for summer crowd control. Riders should purchase timed boarding passes online the night before; demand typically spikes after 9 a.m., so early starts shave an hour off queue times. New weight limits on the horizon Starting June 7, vehicles exceeding 50,000 lbs gross weight or spanning more than 40 ft will be prohibited on the Zion–Mt. Carmel Highway to prolong bridge life and reduce brake-burning accidents on its 10% grades. Rental RVs under 13’ 1” clearance may still book ranger escorts through the historic tunnel, but expect waits of up to 45 minutes at peak hours as rangers alternate one-way traffic. What’s open now • The Pa’rus Trail, Watchman Campground and Kolob Canyons remain unaffected. • Angels Landing permit lotteries continue; winners must still clear chain-section checkpoints by noon. • The popular Weeping Rock trail, shuttered since a 2023 rockfall, quietly reopened this spring after netting and fencing upgrades restored access to its hanging gardens and mist-cooled alcove. Travel tips for summer 2026 1. Reserve entry passes, campsites and shuttles as soon as booking windows open—slots for July weekends vanished within 30 minutes last year. 2. Target Kolob Canyons on closure days; the five-mile scenic drive offers crowd-free panoramas and 2,000-ft red-rock cliffs. 3. Beat afternoon monsoon lightning by finishing exposed ridge hikes before 2 p.m. 4. Carry 3 liters of water per person; heat-related incidents were the park’s leading EMS callout in 2025. With debris removal underway and the shuttle system expanding hours, Zion National Park aims to keep the summer vacation season on track. Check the park’s real-time alerts before departure and build in detour time so that rockfalls don’t derail your red-rock adventure.