ANCHORAGE, Alaska (AP) — Dirt slowly sliding down a mountain threatens a section of road in an Alaska national park.
Alaska's Energy Desk reported that the road through Denali National Park and Preserve is in the path of a creeping landslide that has pushed a 100-yard (91-meter) stretch of the gravel road 6 feet (1.8 meters) since September.
Officials said maintenance staff used rock and gravel to fill a gap in a section of the 92-mile (148-kilometer) road at Polychrome Pass.
Officials said the slide's pace is accelerating; in 2016, it pushed the road 3 feet (0.9 meters) down the mountain, doubling that distance in 2017, and then doubling it again to 12 feet (3.7 meters) in 2018.
Managers are fixing problems as they occur, but also exploring options including bridging or tunneling.