Mud Creek brought a large amount of debris to Mount Shasta, threatening the town’s water supply

2021-11-24 03:42:27 By : Mr. Ray Charles

Mt. Shasta’s Mud Creek is worthy of its name this year, washing down an “astounding” amount of debris, knocking down trees, flooding roads, flooding bridges and endangering the water supply of the McCloud community.

Officials said on Tuesday that due to higher than normal rainfall in Mount Shasta and McLeod, Mud Creek has been transporting tons of rocks, trees, boulders, cars and mud to the southeast side of the mountain.

The mudslide also forced the closure of Pilgrim Creek Road, which runs north on Highway 89, a few miles east of McCloud.

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"There are five-foot-high boulders, and only these very heavy mud are pouring down," said Caroline Naper, a regional ranger in the Mount Shasta-McLeod Ranger District of the Shasta Trinity National Forest. (Carolyn Napper) said.

"And the way it moves is very unpredictable. So it's both fascinating and scary," Naper said.

Officials are concerned about a large pipeline that passes through Mud Creek and delivers drinking water to the McCloud community service area.

The director of emergency services in Siskiyou County, Bryan Schenone, said they were also worried that dirt and debris would be washed into the pump room and spring water that provided McLeod with drinking water.

Schenone said workers have been using bulldozers, excavators and other heavy equipment to dig a channel to divert water from the pump room and spring.

The McLeod Community Service District held an emergency meeting in October to address the mud threat. District general manager Amos McAbier said at the time that he was worried that the mud flow would affect the town’s drinking water.

"It's more serious than we thought. Channels are constantly changing. Our springs and infrastructure are also threatened by mudslides," McAbier said. "The influence of Mud Creek has closed Pilgrim Creek Road and may enter the town."

Napper said the impact of mudslides can be felt as far as McLeod Reservoir, and they may affect the McLeod River, a protected trout fishing stream that flows into Shasta Lake.

More: Mudflow near the flank of Mount Shasta covers the road northeast of McLeod

Schenone said that in some areas, the Nihe River is about 100 yards wide.

"Some parts of the forest have been pulled down, and the soil has covered some trees and the ground. This is definitely worrying for us. This is what we are doing on multiple levels," Chenone said.

Napper said that although workers use heavy equipment to remove mud, they must also be careful not to block mudslides or get stuck in the mud.

Napper said the problem started in June because of the unusually hot weather that melted the Cornwallis Glacier on Mount Shasta and sprayed mud and water into the mud stream. Konwakiton is one of the seven glaciers on the mountain.

More: Mud from melting of Mount Shasta glacier threatens McLeod’s water source

Due to flooding, the U.S. Forest Service closed Pilgrim Creek Road (Pilgrim Creek Road), which was located on the creek under the highway bridge.

But the problem has evolved, Napper explained. Rain in October washed more debris down the slopes, from warm storms, not necessarily from glaciers.

Schenone said they need colder weather to bring snow, which freezes the ground and prevents it from being washed away.

Napper said that Whitney Creek and Ash Creek were also flooded this year. Last summer, during the heavy rains that erupted after a lava fire on the north side of Mount Shasta, Whitney Creek began to pump mud and rocks down the mountain.

The California Department of Transportation said that last summer, a large amount of mud flowed down Whitney Creek, forcing Highway 97 to close for several hours after debris washed onto the road.

Nixi was flooded during a drought in the summer of 2014. A part of the Conwa Keeton Glacier broke, sending tons of rock and mud along the stream into the Pilgrimage Creek Road.

Napper said that during the drought before the 1970s and 1920s, Mud Creek was also flooded. She said that, like this year, previous floods were caused by low snowfall and high summer temperatures.

She said that in the 1920s, floods and mudslides were so severe that they affected Reading's water supply. She said that at the time the Shasta Dam had not yet been completed, so the silt in the water was carried to the Sacramento River into Redding.

Scientists have noticed that the glaciers on Mount Shasta and other peaks throughout the Pacific Northwest have been shrinking in the past few decades.

More: The glaciers of Mount Shasta are shrinking, and "the amazing disappearance of snow" leaves the west side bare

Glacier and climate change expert Dr. Mauri Pelto told the Mount Shasta regional newspaper earlier this year that California’s longest Mount Shasta Whitney Glacier has shrunk by 800 meters in the past 16 years, accounting for about 25% of its length.

Even more amazing is the "staggering loss of snow" above 12,000 feet, which helped reduce Whitney's total mass by nearly half.

Naper said that although the weather is expected to be colder this fall and winter, if the North State experiences another hot and dry year, the flooding problem may reappear next year.

"Whether people believe in climate change or not, there seems to be less snow on the mountains. So this situation may happen again, as I said, it lasted for several years in the 1920s," Naper said.

Damon Arthur was one of the first to have breaking news events, he reported in real time on Twitter @damonarthur_RS. Damon is a member of a team of journalists who specialize in investigating wrongdoing. They found unheard of voices to tell the story of North State. He welcomes story tips through 530-338-8834 and damon.arthur@redding.com. Subscribe now to help local journalism flourish!

This article originally appeared on the Reading Record searchlight: The flooding of Shasta Creek threatens the town’s water supply

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