Golden Gate Bridge | The CRAZY Engineering behind it 

Hello everyone, Lesics is in a brink of shutting down. Your help at Patreon is crucial for us - www.patreon.com/Lesics Hoping for your support, Cheers Sabin Mathew

I appreciate that they went above and beyond to create a 3D version of the engineer, just so we can see him proudly cross his arms..

Very realistic animation. Especially the part where one worker ran the cable while 2 others just stared at the water. 😂

Anyone else here after Baltimore's Key Bridge accident and collapse?👀 Great video, by the way. Very insightful!

Designing and rendering a 15 minute animation like this is also quite a feat of engineering, especially one with as much detail as this one. Thank you so much for all the hard work and time putting this together

They made all this in a time when there was no CAD and other simulation softwares. It's truly remarkable.

I'm not even that into civil engineering but this was REALLY fascinating to watch and learn about.

I appreciate how the sharks just calmly watch the divers working to place the bombs, like "Leave em alone, they're doing complicated work here.."

I'm here after the Bridge collapse in Baltimore. Very very tragic 😞

14:33 I attended the bridge's 50th anniversary in 1987. When the bridge operators approved the temporary closure to vehicles, they estimated 50,000 would attend. The actual number was estimated at peak, close to 800,000 had come, far more than could even fit on the bridge. You can find photos that show masses of people stretching back on to land, unable to reach the span. I attempted to cross the bridge - end to end. It was so crowded that after two hours, I only made it from the toll booths to mid span. The sag was visible. Could you imagine if the cables snapped, killing several hundred thousand? Even though the bridge held up fine, the bridge operators said they will NOT repeat such an event.

Joseph Strauss was officially the Chief Engineer, based primarily on his long history of building drawbridges throughout the country. But for the GGB, Strauss had absolutely no involvement with its design. The suspension design was proposed by Leon Moisseiff, a Latvian immigrant who had been involved on other large suspension bridges in New York, and it was he who had the idea of an elegant suspension bridge. The real brains behind turning the concept into a well-designed structure, however, belongs entirely to Charles Ellis, a meticulous structural engineer who personally made all the static and dynamic load calculations, including solving some equations with 37 variables…all done without the benefit of computers. Strauss became so irritated with the attention Mr. Ellis was getting from the press and other engineers that Strauss canned him. It wasn’t until the 75th anniversary of the bridge’s completion in 2013 that a plaque was installed on the bridge to honor Charles Ellis as the true designer.

Each procedure is so interesting that I'd love to watch entire videos explaining each step further. It's a marvellous structure!

I'm so honored to see this engineering introduce in this video. Thank you.

Whoah, Lesics would make anyone fall in love with physics. Brilliant production, perfectly explained. Free content can't get better than this.

I'm very interested in the work of those divers. I just can't wrap my mind around doing construction in those underwater conditions. Amazing!

Subscribed. Im so happy that something inside of me snapped and decided to learn about stuff about the world, from ancient times to modern times, from old civilizations to modern structures also. You go to the points, good animation and visualizations! Thanks a lot for sharing!

Always fun to see computer animation of the bridge construction. Reminding us that the actual design and work was done in the 30’s

Fun fact. The Golden Gate Bridge undergoes constant maintenance. There is a crew that works from one end of the bridge to the other. They repair and replace rusted out pieces and repaint as they go. This is a never ending loop. When they reach the end the crew goes back to the other side and begins the process all over again.

This man with his engineer colleagues designed this bridge without advanced CAD and simulation programs and computers. Using just pencils, papers and editing tools like rulers and drawing compasses. Today it is still standing there and get the job done, between those harsh environments.

A very enlightening education! Just incredible how brilliant these engineers are. They are the heroes that make our lives better, not pop stars or movie stars!

Just started learning framework of bridges in my school, and i was very curious on how bridges are made ever since then. This really helped me understand alot.

He was a genius he didn’t have todays technology much respect to the designer and his family the Golden Gate Bridge is a wonder of our world

It's astonishing how everyday things that surround you and that you normally don't think much about have such ingenious stories behind them!

The underwater stuff especially is just insane. It's amazing how this thing was built.

So many engineering challenges solved with master level solutions, and on top of that a great animation to explain it all. Excellence!

8:46 Total Jump scare

Amazing! The wisdom knowledge and skill to get this done at that time (1930s) is beyond me! Thank you Lesics for always making these well animated and explained videos!

Another great childrens education vid from Lesics! My 4 yr old loves these!

this is becoming my favorite channel on yt. thank you guys so much for the work that you do! these videos are incredible and honestly so well-made that it's kinda shocking. please keep making these!

Additional facts: At the time of the Golden Gate Bridge's construction, no steelworks on the West Coast could produce components large enough to construct the towers, so they were shipped via the recently finished Panama Canal from the East Coast (New York specifically I belive) The Red color originally was to be a temporary coat to protect the bridge while a final color could be chosen (the navy suggested yellow/black stripes for visibility reasons) but it was stuck with as the locals were fond of it The Bridge was constructed with an unprecedented (for the time) emphasis on worker safety, to the point as far as I'm aware there was only one fatal accident during construction.

My Grandfather (1890 - 1964) wrote a book on the engineering of the bridge contemporarily with its costruction. (1935). He was an engineer for the City of San Francisco. BTW. I don’t think they used roller compacted concrete. I inherited a small piece of one strand of the cable and splice from my mother. The Golden Gate Bridge will always be the standard for beautiful infrastructure. His book is still for sale at the gift shop.

I grew up in SF and loved seeing the bridge! I have crossed it many times but I never knew how it was built. So cool!

Thank you so much for this animation I was a union ironworker local 86 Seattle Washington I'm 67 Now so seeing all of this just brings back memories I even got to work on the Golden Gate a small retrofit job froze my ass off on on the south end thanks for presentation

That is why i as civil engineer really fall in love with these kind of mega structures. Only those who worked on structures know how they built it. For normal people it is just bridge to connect with each other but for us it is more than that it is our emotions, our commitment and love to our country.

Ingenious. Especially how they build the foundation.

Great video presentation. They forgot to include the bridge road to be slightly arched, like an old arch bridge design. It may lessen the tension of the cables and reduce damage when the road deck steel expands. When the finger expansion has no more room for expansion, the steel road deck will push horizontally and may damage the two towers. When the road deck is slightly arched, it will just push up to lessen compression. The designers are very smart. It's a combination of an arch bridge and a suspension bridge.

The way he appreciates, credits and mentions the chief engineer, divers and even the cable workers proved the knowledge is nothing without discipline, execution, teaching and spreading them. He deserves an Oscar for such a animation film

The production of this video is awesome. Thank you for such a great explanation. This video should be on display for visitors of the bridge. I would have definitely appreciated the bridge even more if I’d seen this video.

It's incredible what human beings are capable of. We must appreciate all the magnificent work people in the past have made for our pleasure

For the longest period I have been watching different RU-vid videos in regards to the construction and this is best I have come across! I now understand

They give Strauss far too much credit here (a common mistake)! Strauss did come up with the concept of bridging the golden gate, and was its chief promoter, a herculean task in itself! However, he primarily designed cantilever bridges and did not have the engineering experience to create the suspension bridge that was built. Charles A. Ellis was the primary engineer. Also, they show the traffic flowing in the wrong direction on the bridge. Our steering wheels are on the left in San Francisco!😂 Other than that, a very interesting video!

13:40 The support wire runner-layer is amazing. You can't find people today to do that kind of work.

Excellent video! Thank you for sharing!

Really gives you a better appreciation for the massive amount of thought that goes into our infrastructure.

Maybe I'm biased, but I don't understand how people complain about the fact that we don't make beautiful monuments anymore. Building something like this bridge is a far more impressive and inspiring feat of the human species.

I really am appreciative of the work and effort of everyone who made that bridge. Also I appreciate the hard work it took to make this video as well. It was super informative and showcased everything perfectly.

I always wondered what was so special about a simple bridge, now I know. Thank you. I love learning random information.

Shout-out to the construction workers for risking their lives to make this project a reality

9:08 the first bump was awesome!!!

A well engineered vlog that I have seen on civil engineering. Thank You for sharing it.

This is the amazing video i have seen in a long time. And also hats off to the engineer behind the golden gate bridge "The Joseph Strauss"

Greatest video ever, the animations and the explanations are engaging.

What an amazing video describing this engineering marvel. Thanks for the incredible 3D work you did, it brought it to life.

my grandfather was an engineer for the port authority in New York City, and worked on many famous bridges here(the gw, throggs neck, Verrazano). videos like these make me appreciate the work he did here even more.

Can't even fathom how you design and compute all of this by hand. On paper. Amazing

Absolutely incredible and an underappreciated engineering marvel. I am impressed.

Never cared about this kind of stuff but last year i rode my bicycle from Canada to Mexico and i remember crossing the GGB at around ten miles an hour and actually able to stop to admire it and not be moving with traffic, but it was one if the best parts of my trip. On the north side of the bridge is this cool little park where you can stand at the base of the supports and just really get to admire the whole thing. Super cool video thank you.

Not only that it is tough, the design is really elegant & looking contemporary up to this modern day. Iconic, forsure! Those are true masterbuilder 🎉

Awesome that they took the time to animate all of this, nice video and thank you 🙏🏽 😊

Okay okay, so now I fully understand why cisco went with that logo. What a phenomenal engineering!! Hands down the best looking and stunning bridge out there imo. 👏❤💯

Crazy engineering to give way for automobiles. Great👏🏻

Thank you for the animation, it helped visualize things rather than just saying words and plain picture

2:16 I love how Joseph is just like a good 300 feet tall. makes sense.

Wonderful, well calculated basics on this Golden gate bridge. Great info for civil engineers and a great experience for the passengers on this bridge. Alexander, lndia.

I live in lisbon, and i am always stunned by the proces of building a simular bridge and what comes with it. It's amazing.

Watching this video and gaining such information makes me even more happier being a civil engineer.😊

This might seem crazy but I actually cried appreciating the genius of human engineering. A lot really do go underappreciated! Your videos make me appreciate life a lot more.

Very thoroughly explained. Thanks for taking the time to create this content.

Another interesting engineering tidbit involves the bridge's south anchorage. Upon site inspection, Strauss realized that the Civil War-era Fort Point stood on where he had planned to build the south anchorage for the suspension cables. Wanting to preserve the fort's architecture, he redesigned the south anchorage, incorporating an arch structure so that the bridge could pass over the fort, thereby preserving it. The redesign also moved the suspension anchorages further to the south. (Note: it's also been hinted that preserving the fort saved the Golden Gate Bridge district a ton of money. The bridge was being built on US Army property -- the Presidio to the south and Fort Baker to the north. As part of the agreement with the Army to build the bridge, the bridge district was required to compensate the Army for any property they had to demolish during construction. Needless to say, demolishing old Fort Point would have been quite costly for the project.)

Man the animation keeps getting better and better. Feels like I time travelled to the construction of the bridge...

I love this animation! Why better than B-roll of stock photos of the same thing over and over

Thank you for such an incredibly well explained video!

A master piece of engineering and architectural design

Being a civil engineer I really aspire to do such types of projects.

The planning , preparation on this construction contract is impressive 👏 👌 👍...

This bridge is incredible 😮… thx for the video.

The foundation part is really intriguing. Its unbelievable what humans can achieve.

No doubt it is an engineering marvel. This makes me proud to be a Civil engineer student. This motivates me to study harder. While studying I just imagine that this 5 page numerical defines the lives of thousands of people who are going to use it.

Got the opportunity to see and cross the Golden Gate Bridge when I was in San Francisco some years back. It's was truly a sight to behold

Man this video is kinda sparking the engineering/math loving side of my brain that I let kinda die over recent years. Super super cool stuff. And it’s absolutely incredible that this even happened. Like imagine the SIZE of the team that there needs to be working on this. All with the same goal in mind, all working in tandem to create something bigger than themselves. Absolutely incredible

I was always waiting for a civil Engineering video since I am a Civil Engineering student. Thankyou lesics for this. Joseph Baermann Strauss was a great Engineer. Respect to him 🙏.

Wow. I didn't know the bridge was such an impressive engineering feat. It deserves its place among the Wonders of the (modern) World. And they did all of this without computers.

bro i wasnt expecting a 15 minute video of physics and the engineering of a bridge

Ahhh.... always wanted to know HOW this bridge was built. I read some descriptions but as a non-engineer, need to see a visual representation. Especially the portion about laying the foundations and building the tower. Thank you!

it wasn't just Joseph Strauss, there was a talented team of engineers and architects involved in this, give credit where it's due.

It is so incredible that they were able to build this bridge with no modern technology. Huge respect for those people

Man, you are brilliant. One of the best RU-vid channels. Not just my grandson (who loves everything engineering) enjoyed the video, but I also learned a LOT of interesting things.

This was great. So much better with the animations.

How brave the people are when building the concrete base is crazy. When sailing small boats around the base, swells can get to where it’s like sailing up a hill.

0:32 idk why I found the guy running down the bridge so hilarious

Thank you for showing this in detail.

Great video and amazing they pulled this off given the technology available

I wish there were videos like this when i studied engineering 5 years ago

Man, this is really impressive how they thought of all these problems to fix to build such a bridge

Thanks to Mr Strauss' ingenuity and you as well for illustrating this so well

He's a genius and also protected the workers so well

You also forgot to mention that the bridge deck isn't just straight horizontal as many think. The deck actually arches upward some to the middle of the bridge. One is because the Earth's not flat. So over long distances especially with water that to has an arch to it so if the bridge was built straight across the middle part would actually hang lower to the water. Also alot of times when you see bridges even short ones you will notice it has a slight arch to it. This is bc a bridge with an arch it much stronger then one that's just straight across bc it's arched it presses it self together due to gravity which causes a downward pressure that keeps it in place. Straight bridges doesn't have that and that downward force is still there and without the curve to help balance the downward force it can continue to keep pressuring downward (sagging)until the other supports fail.

These engineers back then were geniuses!!! There jobs were so dangerous especially building the foundation under water 😳 and the cable wires OMG. Talking about brave! God bless all the engineers, your work is appreciated 🙏🏾

Shoutout these workers ,they deserve more credit ,ppl drive on that bridge everyday and could care less about it

This helps me to appreciate the Verrazano Bridge in New York whenever I cross it (same design)