Emergency Demolition of Catherine’s Knob Tower - Controlled Demolition, Inc.
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- Опубліковано 16 лис 2020
- Monongalia County HSEM & MECCA 9-1-1 of Morgantown, West Virginia retained the consulting services of Marion Dougherty of Premier Construction Group, LLC (PCG) who, by extension, recommended the structural consulting services of Mark Malouf, principal of Malouf Engineering International (MEI), to asses observed structural problems with a 480’ guyed communications tower located on Catherine’s Knob near Fairview, West Virginia. That MEI assessment determined that the tower had “structurally failed” and was in imminent danger of collapse, at least partially, due to the observed damage from water which had previously frozen inside the legs of the tower.
Monongalia County instructed Premier Construction to proceed with the emergency demolition of the tower given the expected below freezing temperatures at the site that would have further compromised the structure if additional water had collected in the legs since last winter.
When Randy Orchard of Installtek Communications, LLC, the tower demolition contractor selected by PCG, surveyed the structure toward preparing a demolition plan and proposal, he quickly determined that the condition of the tower presented too great a risk to his personnel using traditional tower dismantling/demolition methods.
PCG contacted Controlled Demolition, Inc. (CDI) of Phoenix, Maryland, USA to perform the emergency preparation for and remote explosives felling of the structure. Using specialty explosives held in stock for emergency projects such as this, CDI’s three (3) man crew mobilized to the site and performed preparations for and the successful felling of the damaged, 480’ tall guyed structure in less than three (3) hours on Monday, November 16, 2020.
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It must have been an emergency when a 10 count only took 7 seconds!
As a Radio tech, I’ve been working in tower buildings since 1984. This confirmed to me how safe I would be in one of those reinforced concrete buildings, if the tower came down while inside. Looks like it just left a couple of scuff marks on the roof edges.👍 nice work
It's always impressed me how all that weight is on one tiny little bolt on a concrete pad and how well guying works to hold it all up.
Can’t wait for the channel ‘uncontrolled demolition inc’
I was actually across the valley on a tower myself in Fairview doing a wave 2 upgrade and got to see this live. Incredible work.
Caspian Border be like:
1.20 nice solid built shed, took weight of tower no problem.
The dude doing the countdown needs to rethink why he's actually counting down, he's acting like it's just to say all the numbers between 10 and 0. He should be treating it like someone's running for their life and he's giving them a short window to escape.
Like Battlefield 3
It’s amazing that you can have a (small) crew arrive with emergency stock and plan and fell something like this before lunchtime. You guys are the best.
Demolition crew: "Our work here is done".
Poor Catherine, they made a short work of her knob.
Nicely dropped as usual! Crazy that the failure was caused by water intrusion, as I would imagine that has to be a known issue to be dealt with on all of these towers.
"Hey boss, Catherine's knob's gone.."
What makes this a great video, is that it has a detailed description of why this had to be brought down. Good job in and on the video.
I love all the different capture angles. How different it appears to collapse from each angle is surprising. The first shot is sweet with the tower moving before the explosion sound reaches us.
Catherine’s Knob eh?
I sure would like to have those antennas that are on those towers after demolition!
Impressive that the top of the tower landed right next to the bottom at
When my son was about 11 years old he entered a Jaycee Relay Race. He’d never ran track before and didn’t know everybody wore shorts. He came in jeans, to everyone’s amusement. He ran the last leg for his team - and came away the fastest runner of the day, and made up considerable distance to win. This video made me think of that day. How I wish I had been able to see it, instead of only hear and read about it. I was a single mom and had to work. My son was an amazing athlete. ❤️