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Where does a 3,000,000 lb gorilla sit?
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stymingersfink


Oct 28, 2007, 2:59 PM
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Where does a 3,000,000 lb gorilla sit?
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Anywhere it wishes, though in this particular case they're hoping it sits right proper like on the new abutments.



getting ready to do some 128x wheelin!







that's 1,500 tons creeping along.


Quick and dirty backstory? An overpass on the I215 was due to be replaced. Desiring a minimum of impact on the traffic, they decided to build the replacement adjacent to the existing bridge then move it into place with the help of Mammoet, a heavy equipment transport company out of the nederlander.

The wheeled thing: 16 rows of 8 tires makes for 128 tires per transporter (x2 transporters) so 256 tires on the ground. The are controlled centrally, all 256 of them can be rotated 360 degrees.

For the whole story, check out the UDOT website.

This animation of their project is pretty bad-ass.

Pretty effen cool, eh? Bettin with the recent concerns for bridges around the U.S. we'll be seeing more of these events in the near future.


(This post was edited by stymingersfink on Oct 28, 2007, 3:00 PM)


bent_gate


Oct 28, 2007, 3:30 PM
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Re: [stymingersfink] Where does a 3,000,000 lb gorilla sit? [In reply to]
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Wow, so it looks like they just put the new span in place today. Did you go watch it?

Way to go UDOT.

Great strategy for out west. (where there is more room on the side of the road). The east is too filled up to do that in many places unfortunately.

This will surely be on Discovery Channel at some point I hope.


overlord


Oct 28, 2007, 4:19 PM
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Re: [bent_gate] Where does a 3,000,000 lb gorilla sit? [In reply to]
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those mammoet transportes are really cool. modular. just stack them together to get the capacity you need.


Partner epoch
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Oct 28, 2007, 4:23 PM
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Re: [overlord] Where does a 3,000,000 lb gorilla sit? [In reply to]
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Heh,

we have those things here where I work. Nothing like seeing 1/5 of a ship rolling down the street...


stymingersfink


Oct 28, 2007, 8:16 PM
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Re: [bent_gate] Where does a 3,000,000 lb gorilla sit? [In reply to]
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bent_gate wrote:
Wow, so it looks like they just put the new span in place today. Did you go watch it?
But of course! The planning on UDOT's part in regards to accommodating public viewing was a tad wanting. I had to climb to the top of a pine tree to get those shots. Wink


bent_gate


Oct 28, 2007, 9:20 PM
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Re: [stymingersfink] Where does a 3,000,000 lb gorilla sit? [In reply to]
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Pretty cool. In Southern California, they just get a hundred thousand illegals under it, and have em move it like ants. Then they give them each a dollar.

It comes to about $100,000.


kantkatchme


Oct 28, 2007, 9:54 PM
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they did the same thing to rreplace a piece of our freeway in the summer....my friend is an engineer so we sat and wathed the whole fucning thing...you dont really evn notice that its moving till it is finished...but it was kinda neat when it was done..


Partner angry


Oct 29, 2007, 1:42 AM
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Re: [bent_gate] Where does a 3,000,000 lb gorilla sit? [In reply to]
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bent_gate wrote:
This will surely be on Discovery Channel at some point I hope.

I worked on a tunnel repair this fall (Glenwood Canyon) a little over a week ago Discovery was supposed to come in the day after we left and film.

Here's the good part, if they go outside of the tunnel to show the fill, the canyon, or the above shot of the command center, they won't be able to miss filming the banner with the company name hanging on the rock face. So um, that's my handiwork and 15 minutes.


geogoddess


Oct 29, 2007, 10:44 AM
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Re: [angry] Where does a 3,000,000 lb gorilla sit? [In reply to]
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angry wrote:
bent_gate wrote:
This will surely be on Discovery Channel at some point I hope.

I worked on a tunnel repair this fall (Glenwood Canyon) a little over a week ago Discovery was supposed to come in the day after we left and film.

Here's the good part, if they go outside of the tunnel to show the fill, the canyon, or the above shot of the command center, they won't be able to miss filming the banner with the company name hanging on the rock face. So um, that's my handiwork and 15 minutes.
The Banner Wars were a big deal!! You are right, the news crews were all over this thing- helicopters etc. 3 companies were involved: Baker (structural engineers who designed the bridge) and Wadsworth (a Utah based construction company that specializes in bridges) had giant banners hanging off the bridge decks. Mammoet, the transporter firm, had banners all over their machinery. It was quite the spectacle, all in all, UDOT even passed out flyers in my neighborhood (I live close by)

The other thing that was amazing is the exacting choreography of every single piece of equipment - it was a really tight squeeze in there for the transporter, a crane, two loaders, a trackhoe, space/supports for the two old decks, steel braces, generators for lights, side dumpers, flatbeds to move out a bunch of steel ramp sections in minimal time....It was clear they'd run this scenario dozens of times.

are you an engineer? or a graphic artist for one of the companies?


microbarn


Oct 29, 2007, 11:08 AM
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Re: [geogoddess] Where does a 3,000,000 lb gorilla sit? [In reply to]
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dude, you made it to 101 posts already!

go you!


stymingersfink


Oct 29, 2007, 4:22 PM
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microbarn wrote:
dude, you made it to 101 posts already!

go you!
don't encourage herUnimpressed


Partner wideguy


Oct 29, 2007, 5:15 PM
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They said the highway underneath was only closed for a weekend? That includes, I'm assuming, the removal of the old roadbed and supports?

Even with those cool movers and such, that is one hell of an engineering feat.


stymingersfink


Oct 29, 2007, 8:01 PM
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Re: [wideguy] Where does a 3,000,000 lb gorilla sit? [In reply to]
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wideguy wrote:
They said the highway underneath was only closed for a weekend? That includes, I'm assuming, the removal of the old roadbed and supports?

Even with those cool movers and such, that is one hell of an engineering feat.
Did you watch the animation? It explains the process better than I did, but it's still one hell of an engineering feat indeed.

Well, they actually only closed the highway underneath for the weekend to facilitate removal and replacement of the bridge span. Yes, 48 hrs or just a tad under I believe, and now the road looks better than it did before, no noticeable damage to the road surface.

The new bridge overpass, however, will be closed for 7 days while new approaches ramps are built, road surfaces and marking applied, etc, etc. Since it is only 4500S street we're talking about, there is minimal impact to some residents in the area, but there is another underpass (to access the same freeway on-ramp they would have to use anyway) at 3900S. Besides, the payoff for a weeks worth of patience should be more than worth it. The old roadbed was horrible!


Partner angry


Oct 29, 2007, 11:26 PM
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Re: [geogoddess] Where does a 3,000,000 lb gorilla sit? [In reply to]
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geogoddess wrote:
are you an engineer? or a graphic artist for one of the companies?

I'm a guy with a rope and a boss who's fascinated by climbing but doesn't climb. My degree is in teaching.

Click this link, you'll see a photo of me "working".
http://www.concreteworksofcolorado.com/..._Lake/slide_show.htm


Partner sevrdhed


Oct 30, 2007, 9:00 AM
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Re: [angry] Where does a 3,000,000 lb gorilla sit? [In reply to]
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I drove under that new overpass on my way to work this morning.

I saw the "Parking for viewing" sign when I left for vegas friday, but I couldn't believe people actually went out and watched it. The only way I would have stuck around to watch that is if I had known ahead of time it was going to all fall apart in a spectacular display of human failure.


Partner wideguy


Oct 30, 2007, 9:07 AM
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stymingersfink wrote:
wideguy wrote:
They said the highway underneath was only closed for a weekend? That includes, I'm assuming, the removal of the old roadbed and supports?

Even with those cool movers and such, that is one hell of an engineering feat.
Did you watch the animation? It explains the process better than I did, but it's still one hell of an engineering feat indeed.

Yeah I watched it, that's why I had to ask. I imagine those movers don't drive all that fast but close the road, move the movers in to remove the two old spans, move them to the demo areas, build the ramps for bringing the new span to the roadbed, Demo all the old supports, move the new span, demo the ramps to the road bed.

I've seen it take two days just to demo supports for a bridge once it's removed the old fashioned way. Granted, that was with the highway open so they had to be very careful whateve...

pretty impressive.


pro_alien


Oct 30, 2007, 10:27 AM
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Re: [stymingersfink] Where does a 3,000,000 lb gorilla sit? [In reply to]
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Method used here to replace river crossings: Build the replacement bridge next to the old bridge. Over a weekend, tear down the old bridge, then slide the new bridge in place using tracks + teflon gliders.

http://www.tagesanzeiger.ch/.../zuerich/681481.html (in German)


desertwanderer81


Oct 30, 2007, 10:42 AM
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As a civil engineer....this is the sexiest thing I've seen all day.....make that month.....

I can't help but sit here in awe......


geogoddess


Oct 30, 2007, 1:46 PM
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Re: [angry] Where does a 3,000,000 lb gorilla sit? [In reply to]
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angry wrote:
geogoddess wrote:
are you an engineer? or a graphic artist for one of the companies?

I'm a guy with a rope and a boss who's fascinated by climbing but doesn't climb. My degree is in teaching.

Click this link, you'll see a photo of me "working".
http://www.concreteworksofcolorado.com/..._Lake/slide_show.htm
Way to go. Nice work, when you can get it!

I had a bit part in Snowbird's Peruvian Tunnel, I was on the regulatory side... they bored a tunnel thru the mountain, and put a conveyor system to carry skiers from the north-facing side to the south-facing side. It avoids the ridgetop winds that typically shut down the chairs and the tram. All in all, it went pretty well.

You can even step off inside, and get coffee from a little stand run by a Tibetan family.

http://www.snowbird.com/...uction/peruvian.html


stymingersfink


Oct 30, 2007, 3:58 PM
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Re: [wideguy] Where does a 3,000,000 lb gorilla sit? [In reply to]
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wideguy wrote:
I've seen it take two days just to demo supports for a bridge once it's removed the old fashioned way. Granted, that was with the highway open so they had to be very careful whateve...

pretty impressive.
Yeah, with the highway closed they just pulled/pushed the old supports over into the I-215 roadway, as the movers were crawling down the freeway to the old deck's final resting place. It didn't seem to do any damage to the roadway there, nor did it take very long to truck the rubble away. The only thing they were worried about were the new abutments, which had already been built under/behind the existing bridge.

The temporary deck built across the southbound lane to facilitate getting the new bridge deck lined up proper like was actually craned out before the new bridge deck could move to its final position. It took them about two hours to crane it away and move all the soil that had been built up to allow the Mammoet mover to access the temp ramp. They started that portion of the project within minutes of the transporter's wheels clearing the final few feet of it. In the first pic you might be able to see the guys in the background working on that part of the project, before the new span was even lined up for final approach.

This week they're de-constructing those old decks the old fashioned way... a really big cat with a really big jack hammer I imagine, and a crane to remove the original I-beams as they become exposed. I dunno. It's sitting on some stacked cargo containers, pretty much at it's original height, as all the movers could do is just dump them off and roll out from under them.




As far as watching the old bridge removal/new bridge install... is there really any other reason to watch than to be there IF something went spectacularly wrong?Smile All in all, it was a finely choreographed operation, with none of the dancers missing their cues.


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