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#Post#: 877--------------------------------------------------
Even well maintained dams are dangerous
DIR By: Doug K
Date: December 27, 2019, 12:05 pm
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It won’t happen here!
We don’t have a problem.
There is no Safety Issue on the Erie Canal.
The Canal Corporation is Fear mongering.
All of the the Dam Experts are wrong.
I’ve heard all these comments over the past couple of years, as
we have lived in limbo thanks to a few people who think trees
are more important than peoples lives. They slowed up the Canal
Corporation’s Earthen Embankment Integrity Project and everyone
living west of the canal in Fairport, have been put in danger of
flood by this small group opposing Canal Safety Work. Our 60
feet high Earthen Embankment Dam, (the ‘hill’ you live beside)
has been designated a High Hazard risk dam by Dam Engineers. All
that is needed is a really good rain storm, a spillway to clog
with a log, and the canal could flood over the top, causing a
breach and releasing 200 million gallons of water onto Jefferson
Ave, Crystal Springs residents.
Thankfully, the NYS Canal Corporation is now preparing to
finally clear away the vegetation that is hindering inspections
and vital repairs will be made to a very neglected dam that had
no maintenance done in seventy years or more. I think you’ll
find work will commence shortly after the winter weather has
declined. This summer we will see a canal with cleared
embankments and a fully restored embankment is still a couple
years away. Regular inspections using drones will commence after
that, and we can all rest, assured of Erie Canal Embankment
safety at last.
Here have been two earthen dams that have collapsed in the past
week... and I bet ALL of those people thought "It won't happen
here either".
South Carolina Flooding: Dam Breach, Triggers Full Scale
Evacuation. Nine drowned... NBC News
[attachimg=1]
HTML https://www.nbcnews.com/nightly-news/video/south-carolina-flooding--dam-breach-triggers-full-scale-evacuation-539022915792?cid=eml_onsite<br
/>
[attachimg=2]
Here's another story from across the Ocean, another dam breach
on the verge of collapse
Thousands evacuated after part of dam collapses in England...NBC
News
[attachimg=3]
HTML https://www.nbcnews.com/video/evacuations-after-damage-to-toddbrook-reservoir-dam-near-whaley-bridge-england-65140805623?cid=eml_onsite<br
/>
Here are two website hosted by the Erie Canal Neighbor's
Association for facts, articles & postings about Erie Canal
Embankment Integrity & Overall Earthen Dam Safety. Feel free to
join in the conversation or get an education on Embankment Dam
Safety & how this is a BIG problem in NY State right now... and
not just on the Erie Canal
HTML https://ecna.createaforum.com/index.php
HTML https://eriecanalfacts.wordpress.com/2018/03/01/nypa-versus-towns-of-pittsford-brighton-perinton/
HTML https://www.osc.state.ny.us/localgov/pubs/research/dam-infrastucture-2018.pdf
For those of you who want to look the other way on public safety
issue or ignore what the NY Canal Corporation is saying about
the NYS Canal System there's a lesson to be learned by ignoring
safety issues on these old earthen dams. Maybe ask someone in
South Carolina if you don't believe it will happen here. If the
Erie Canal doesn't get fixed, and soon, then we will all have to
worry about this same thing happening here.
It's not a matter of "if", it's becoming a matter of WHEN.
This original Post was made by Mike Caswell on Nextdoor Fairport
HTML https://nextdoor.com/news_feed/?post=132954534
#Post#: 1104--------------------------------------------------
Even well maintained dams are dangerous
DIR By: Michael Caswell
Date: May 20, 2020, 5:27 am
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Dam Fails in Edenville, Michigan
HTML https://www.weather.com/news/news/2020-05-19-severe-weather-impacts-michigan-flooding-ohio-flooding
Here's what this well maintained dam looks like, from a Google
Maps photo.
[attachimg=1]
Note the complete lack of trees and vegetation. It appears to
have failed due to torrential rain and saturation of the earthen
fill. The overtopping of the dam then washed away the dam.
What does this prove? Even well maintained dams from a
vegetation perspective are dangerous!
The Sanford Dam burst on Tuesday after days of heavy rain
HTML https://ichef.bbci.co.uk/news/660/cpsprodpb/17C4D/production/_112375379_f9df6e38-cfae-49c5-85ac-3b1987e289ee.jpg
HTML https://www.bbc.com/news/world-us-canada-52735170
[attachimg=2]
Another dam, as seen here with no vegetation, yet it failed.
#Post#: 1105--------------------------------------------------
Re: Even well maintained dams are dangerous
DIR By: Canal Neighbor
Date: May 20, 2020, 6:38 am
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News reported a heavy rainstorm just prior to collapse of TWO
dams along this Michigan river. Midland Michigan had 7 inches of
rain over the past weekend.
One dam had a recent inspection and received a FAIR rating, the
other dam, the one that broke first, it had a recent
UNSATISFACTORY rating, stating it was a possible hazard to human
life.
Many canal embankments in our area have received the same
unsatisfactory rating, and have been labeled High Risk.
NY canal earthen embankment dams are just an accident waiting to
happen. Too bad most of the Rochester area is unwilling to admit
the problem and would rather fight against work to repair an
unsafe canal system.
#Post#: 1155--------------------------------------------------
Re: Even well maintained dams are dangerous
DIR By: Michael Caswell
Date: June 15, 2020, 6:21 am
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Some links about trees on dams
HTML https://damsafety.org/dam-owners/trees-and-brush
Trees and brush on dams asdso
HTML https://www.bassresource.com/fish_biology/dams-trees.html
HTML https://www.dispatch.com/article/20150601/NEWS/306019810
HTML https://www.arkansasonline.com/news/2019/nov/18/high-risk-dams-in-rough-shape-state-dat/
HTML https://damfailures.org/lessons-learned/uncontrolled-vegetation-on-and-around-dams-can-hinder-inspection-and-lead-to-serious-structural-damage-significant-maintenance-costs-and-possible-failure/
HTML https://foreststewardshipnotes.wordpress.com/2012/11/26/what-good-is-a-cottonwood-tree/
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