<body><div><img src="https://img.particlenews.com/image.php?type=thumbnail_580x000&amp;url=26EWA5_19r80f8E00" alt="https://img.particlenews.com/image.php?url=26EWA5_19r80f8E00" width="986" height="555" >POLSON, Mont. — On Sunday afternoon, the Montana Department of Transportation reported a rockslide near mile marker 70 along Highway 93 that blocked the southbound lane.MDT says to expect delays all week due to the rockslide.With spring approaching, events like this can become more common.Rockslides are large masses of rock and debris that move quickly down steep terrain, and there are several triggers behind these events. One of the biggest factors is precipitation, including heavy rain or snowmelt, which can saturate the soil and weaken the slope. Add gravity, and that weight can suddenly give way.Human activity can also play a role. Construction or mining can alter the natural structure of a hillside, making it more unstable. No matter the cause, rockslides can be very dangerous and often damage roads, homes and forests in the surrounding area. Flooding can also occur if a rockslide blocks a river or stream.For now, the Polson Rural Fire Department says the road is clear, but drivers may still see delays as crews work in the area. If you’re heading in or out of the Mission Valley, give yourself some extra time.</div></body>

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POLSON, Mont. — On Sunday afternoon, the Montana Department of Transportation reported a rockslide near mile marker 70 along Highway 93 that blocked the southbound lane. MDT says to expect delays all week due to the rockslide. With spring approaching, events like this can become more common. Rockslides are...

Spring conditions raise rockslide risk after Highway 93 closure

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POLSON, Mont. — On Sunday afternoon, the Montana Department of Transportation reported a rockslide near mile marker 70 along Highway 93 that blocked the so

Spring conditions raise rockslide risk after Highway 93 closure

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