washout
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Fleet Owner
Joined: Sep 2005
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From: Lake Tahoe, Nevada
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From: North of Boston MA
Norton came up with a virus detection when I was viewing these pics so be careful.
Looks to me like there was an existing culvert under the road. It probably got plugged or couldn't handle the flow so the water found a new course through the embankment. Once it does this, the water takes all the fine soils with it and the initial settlement happens. More water through the bank and more fines washed away. Eventually, catastrophic failure.
I wish the photos had been time-stamped. I'm curious how long the whole process took.
Looks to me like there was an existing culvert under the road. It probably got plugged or couldn't handle the flow so the water found a new course through the embankment. Once it does this, the water takes all the fine soils with it and the initial settlement happens. More water through the bank and more fines washed away. Eventually, catastrophic failure.
I wish the photos had been time-stamped. I'm curious how long the whole process took.
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Fleet Owner
Joined: Sep 2005
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From: Lake Tahoe, Nevada
Yeah, that was a very iffy site. I tried to back track through it to find out when and where that took place and I ended up having to shut down my browser to get out of it. (Without having learned anything.)
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From: Kzoo
We had that happen last year, although the water went over the road first and slowly erroded the underside away, luckily it only got about half the road. I'll post up some pictures later when I'm not on my phone.
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