Similar "issue" with the St. Louis Gateway Arch. Though constructed using geometric math. This Arch also uses another construction form..The Triangle. When "meeting" the two arch supports workers had to use water hoses to constrict the stainless steel to make the keystone fit with 5 inches to spare! With NO COMPUTERS!
I walked to the middle of that bridge earlier this year. It was kinda scary looking down over the rail. It doesn't seem that high until you walk on it.
Just walk across today October 27 2022 I felt no vibration of any kind from semi trucks going across bridge .. Super super strong ..fantastic engineering four the years of 2000s
We worked nights throughout the summer to keep the concrete within reasonable temperatures. Also the concrete was infused with nitrogen to keep it from setting up in the trucks it was hauled to the site.
I witnessed this bridge being built at night from the hoove dam, I would have expected its conruction to be mainly steel; judging by the amount of welding that was illuminating the night sky How wrong can one be. Fantastic time lapse video and such a great bridge
The majority of the welding that took place was actually on the N.R.S. Traveling Form System. The Welder was Eddie Archilla Local Carpenters Local 1977.
The dam could not handle the additional traffic on the road, partly because the highway was a designated NAFTA route which resulted in too much congestion leading to the dam
i've only crossed through there when i was 15 years old it was at night so i didn't get get to enjoy the view that was the time the highway connected to the dam
Most Dams in the us that had public road access on top of them were closed off after 9/11 amid "concerns" that terrorists might target them, assuming that there were other road crossings available nearby. Hoover dam needed a bridge because it is a high traffic area for tourists and there was not another crossing nearby. I emphasized "concerns" because historically terrorists have not considered dams as valuable targets. dams have more often been targets during actual wars. if i had to guess i would say that terrorists don't target dams because their goal is to spread fear with a more direct impactful approach. they need people left alive to spread that fear with. with something like a dam its all or nothing, either the people below the dam have no warning and they all die or they are far enough away that they would be able to evacuate. also it would be fairly difficult for most any IED to do meaningful damage to a dam from the road deck. it really doesn't make sense why they wanted to close these bridges off but they did. Im fairly certain you would need military grade high-yeild munitions to actually do enough damage to some of our dams to cause them to fail....
I live in phoenix az and work in vegas at the time. It was cool to see the progress twice a week when I drove to and fro. The only thing that sucked was the traffic.
The "Arch" in construction-engineering is one of thee most durable (and old) with tensile strength due to reinforced steel. The Arch (2 of them) was also use with the Dallas Cowboy Stadium, which is the largest indoor span in the world.
I remember many years ago when I saw the very beginnings of the construction that was going on. carry to see the cranes and lots of them around the drive through of the hoover dam itsself. If your from the Arizona/Nevada area then sorry I meant to say Boulder Dam.
My husband and I came by and photographed the bridge when it was 75ft from completion. Even though hubby's afraid of heights, they gave us a tour(I'm a photojournalist). Amazing 'site' to see! And no, I am NOT afraid of heights! Magnificent job, guys!
Wrong. Hoover Dam bypass bridge is the 4th largest COMPRESSION ARCH bridge on the planet and the largest of its type in the western hemisphere. I spent 4 1/2 years on that project.
It's pretty incredible to stand at the middle of the bridge and look out towards the dam. Just an awe-inspiring view.
I was told they couldn't be off more than a 1/4" when both halves joined! that's great engineering guys!
Similar "issue" with the St. Louis Gateway Arch. Though constructed using geometric math. This Arch also uses another construction form..The Triangle. When "meeting" the two arch supports workers had to use water hoses to constrict the stainless steel to make the keystone fit with 5 inches to spare! With NO COMPUTERS!
Wow, an unbelievably beautiful piece of work!
This is so awesome what human beings can do.
I worked there poured the foundation for 14 hours non stop
Nice!
How many companies were hired?
BS. You would have violated Union work rules and being a federal job your employer would have been banned from bidding on future federal jobs.
@@samfrancisco8095
Not true.
We still enjoy the drive across the dam but this is great for commuting!
Anyone working on this had a 0% fear of heights. Couldn't get me up there at gunpoint.
So you're saying you're more afraid of the small risk of falling than the great risk of dying from being shot?
@@peter_smyth derp
Not fear, just respect and very safety conscious. I worked on that project.
The temporary cable supports of the unconnected arch sections were a spectacular bridge in their own right.
Piemels
Opdrachie make voor techniek chekkk
I walked to the middle of that bridge earlier this year. It was kinda scary looking down over the rail. It doesn't seem that high until you walk on it.
this bridge is so awesome that when you drive across it, you cant notice how high you are
Just walk across today October 27 2022 I felt no vibration of any kind from semi trucks going across bridge ..
Super super strong ..fantastic engineering four the years of 2000s
We worked nights throughout the summer to keep the concrete within reasonable temperatures. Also the concrete was infused with nitrogen to keep it from setting up in the trucks it was hauled to the site.
We use that during cold weather
I saw the bridge this April 29th 2015. Magnificent.
great video
I was there last Friday. Beautiful weather and an absolutely amazing structure.
I got to see it last year. =D
thank you
I witnessed this bridge being built at night from the hoove dam, I would have expected its conruction to be mainly steel; judging by the amount of welding that was illuminating the night sky How wrong can one be. Fantastic time lapse video and such a great bridge
One of the coolest vids on TH-cam!
can't believe i drove over this awesome bridge! (at night aha) amazing job
@robag71 You meant to say .....its interesting how the earth rotates on its axis as we travel around the sun a few times.
nice video
Awesome!
Been on it, amazing, but very windy at times
Anybody know why the suspension cables were dropped, then put back up, then dropped again betwwen 1:23 and 1:30?
@ssdphoto :) Yeah, I cold have said that as well.
And it is best seen in the last year of the construction.
I was visiting the dam right around the 1:33 mark.
Sadly first jumper yesterday...60 yr old woman from San Jose...
That is very sad and tragic.
Bunch of people jumped and it always a secret 🤫
cool
May i use this video for a project?
I was there may 2010... It was hot
The majority of the welding that took place was actually on the N.R.S. Traveling Form System. The Welder was Eddie Archilla Local Carpenters Local 1977.
Were the workers on helecopter
We either climbed up the arch itself or were transported in man baskets via cableway cranes to our work assignments.
This was actually so good I always wondered how they did that
The dam could not handle the additional traffic on the road, partly because the highway was a designated NAFTA route which resulted in too much congestion leading to the dam
Thats awesome, you worked on it?
Wow last I seen it was when they were starting the arch part
Nice! Thanks.
I am surprised they did the roadbase 1:50 starting at the middle ... I guess it was to distribute the weight
Yes. The best way to build it, is from the middle. You are decreasing the bending of the arch as much as you can with a symmetric load.
I went jet skiing with some friends and saw the dam as well as this and wonderd how they did it
yeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
i've only crossed through there when i was 15 years old it was at night so i didn't get get to enjoy the view that was the time the highway connected to the dam
Why was the bridge constructed when cars were allowed to pass over the dam
Most Dams in the us that had public road access on top of them were closed off after 9/11 amid "concerns" that terrorists might target them, assuming that there were other road crossings available nearby. Hoover dam needed a bridge because it is a high traffic area for tourists and there was not another crossing nearby. I emphasized "concerns" because historically terrorists have not considered dams as valuable targets. dams have more often been targets during actual wars. if i had to guess i would say that terrorists don't target dams because their goal is to spread fear with a more direct impactful approach. they need people left alive to spread that fear with. with something like a dam its all or nothing, either the people below the dam have no warning and they all die or they are far enough away that they would be able to evacuate. also it would be fairly difficult for most any IED to do meaningful damage to a dam from the road deck. it really doesn't make sense why they wanted to close these bridges off but they did. Im fairly certain you would need military grade high-yeild munitions to actually do enough damage to some of our dams to cause them to fail....
What Minecraft mod is that? Is that round mod?
I live in phoenix az and work in vegas at the time. It was cool to see the progress twice a week when I drove to and fro. The only thing that sucked was the traffic.
It took longer to build this bridge than the dam...
Interesting to see how the angle of the Sun changes over a year.
The video of the dam construction was 10x better quality then this.....and that was in 1931....
I see that on google earth x)
Over and under, they've gotta build.
if you look at the lake, the water level goes up and down
It's the Colorado River
The "Arch" in construction-engineering is one of thee most durable (and old) with tensile strength due to reinforced steel. The Arch (2 of them) was also use with the Dallas Cowboy Stadium, which is the largest indoor span in the world.
music
SCIENCE BE PRAISED!
What took them that long? China can do better.
I remember many years ago when I saw the very beginnings of the construction that was going on. carry to see the cranes and lots of them around the drive through of the hoover dam itsself. If your from the Arizona/Nevada area then sorry I meant to say Boulder Dam.
I'm from Northern AZ, I don't call it Boulder Dam at all.
Why do we have two Hoover dams. I hate that
I built that Arch.
My husband and I came by and photographed the bridge when it was 75ft from completion. Even though hubby's afraid of heights, they gave us a tour(I'm a photojournalist). Amazing 'site' to see! And no, I am NOT afraid of heights! Magnificent job, guys!
Piemels
What’s the big deal?
There are thousands of bridges better than this in China.
Wrong. Hoover Dam bypass bridge is the 4th largest COMPRESSION ARCH bridge on the planet and the largest of its type in the western hemisphere. I spent 4 1/2 years on that project.
Seems so much easier in Minecraft...
Nice! Thanks.