What stops rain from flooding your city?

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Rain has been a constant source of flooding in cities for centuries. We’ve gotten better at engineering defenses as people die and we needed to make things better.
Practical Engineering on how sewers work: • How Sewers Work (feat....
JAPAN SITES
Underground Water Tank Tour: gaikaku.jp/
Tetsugakudo Apartment: goo.gl/maps/orcjbFAHaLwVUdw36
Nissan Stadium: goo.gl/maps/jacAmnQQifjcJQAj9
Infrastructure Tourism: www.mlit.go.jp/sogoseisaku/re...
For any geeks like me, this is the document I used that covers the fun technical details of the sites I visited and more: documents.worldbank.org/en/pu...
TORONTO Sites
Moore Dry Pond: goo.gl/maps/MuZS2PaqSGfFaHUn6
Clairville Dam: goo.gl/maps/87gSqgP2h5qe9Zd48
Raymore Park: goo.gl/maps/Zrak6S78ZdNTWzqW6
- - - -
Table of Contents
0:00 From Highways to Hidden Dams
1:40 How Speed Fixed Sewers in Victorian London
3:49 Making Sewers Even FASTER!
5:30 #Ad So I Can Make These Videos
6:55 How Concrete Channels Move TONS of Water When it Rains
7:36 Speed Kills. The Hurricane Toronto Underestimated
9:20 How Dams save lives
10:46 Hidden Dams that Surround You
14:42 Tokyo - Apartments & Stadiums Designed to Flood
18:04 $2 Billion Underground Storage
19:13 Cheaper & Greener Flood Defenses Soon Coming to Your City
- - - -
Some videos have a creative commons license:
creativecommons.org/licenses/...
creativecommons.org/licenses/...

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Опубликовано:

14 май 2024

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Комментарии : 843

@Lam 11 месяцев назад

@zaj007 11 месяцев назад

Hey. Put the yellow outlines in the thumbnail. The video is great! Just the thumbnail sucks. Make it clearer what the video is about

@JMLoope 11 месяцев назад

@@zaj007 😅 7:59 😅

@TommyCheese-cd2fd 7 месяцев назад

Do you think our country is about to go to war with China because of the Chinese government our is it our own government? God knows no one with any sense wants anyone to suffer

@r.ccustomtruckingsydneyaus4632 2 месяца назад

so why didn't they cover this or better yet drill a tunnel under the city for the water to run. look at all the space saved can be used for actually something good capping could put hole h.way overtop of that river. . silly not too

@AMPProf 17 дней назад

IF ALL THE SEAS WERE INK

@mmp0625 11 месяцев назад

I’m a civil engineer specialized in water resources and you did a fantastic job making such critical (yet mundane) infrastructure very interesting. Also great to see the actual manning’s equation when discussing open channel flow. Great work! I will definitely be subscribing.

@Lam 11 месяцев назад

Wow, thank you so much!

@BestMods168 2 месяца назад

🤡

@zenlei8258 Месяц назад

@@Lam It is better to build a few man made lakes to store heavy rain fall. Then release the water gradually after the rains become less.

@PureMagma Месяц назад

@@zenlei8258in an ideal world this would be true, but in heavily populated areas where "minimal planning" occurred & prevailed for over 100 years... lakes don't adequately protect the water reserves. More specifically, man-made lakes do not protect the costs that have been expended to capture and direct storm waters. Like this video explains "money and space" are the most important concerns for successful water retention in densely populated areas.

@zenlei8258 Месяц назад

@@PureMagma Some China lakes is doing this job. The man made lakes have very less water by pumping water out during dry season. During heavy rain fall the lakes will store this excess water temporarily. So less water flow into to residents area and flood can be avoided. It work all the time with proper planning.

@eli1000fer 10 месяцев назад

17:27 *engineering an entire building to waterproof the first floor with watertight doors and reinforced windows* Andrew Lam: "small details"

@Lam 10 месяцев назад

For this video haha

@ethanma1722 11 месяцев назад

The production value on this is incredible. You strike a rare balance of both teaching me new things and also making a palatable video that I can watch while eating lunch. Keep it up bro

@Lam 11 месяцев назад

Really appreciate your comment! Getting the balance right for the story was really hard. Glad it paid off and made it a fun watch for you!

@cbsGD 11 месяцев назад

🙏

@liquidmakor6793 11 месяцев назад

im literally eating lunch while watching this. And replying this comment

@nickkk420 2 месяца назад

It's true, very well struck balance

@lucasfontainha9053 Месяц назад

you stole my words!!

@riba2233 11 месяцев назад

Oh boy I thought this channel was dead, glad to see you back!

@Lam 11 месяцев назад

I'm alive, it just took a stupid amount of time to produce this video! Thanks for coming back and watching!

@riba2233 11 месяцев назад

@@Lam yeah I can imagine, thanks :)

@gradientO 11 месяцев назад

Takes time to produce such high quality videos. I'll wait

@Dgunztube 11 месяцев назад

@@Lamplease keep it up.

@LongIslandCityLayout 11 месяцев назад

Nah he’s definitely alive. His videos are super high-quality and he probably has a full time job outside of RU-vid.

@teamcybr8375 11 месяцев назад

I really hope all of those "I would need a full video to explain" bits turn into their own videos! I'm definitely interested to learn more about these projects!!

@Lam 11 месяцев назад

Oh they're very much a possibility. The sewer one especially as I have a lot the research down but it seems like a big video.

@ChesterSam89 8 месяцев назад

Easily the best video on stormwater infrastructure I’ve ever seen. You really made a boring topic EXTREMELY interesting. Shoutout to all civil engineers that do amazing work that nobody takes the time to appreciate.

@Lam 8 месяцев назад

Wow, thank you so much. I tried my best to help transform the way they see the world around them. Hopefully they can now see what's been done

@erictaylor5462 4 месяца назад

10:40 In the Early 1980's there was a huge flood in my home town. A few years later I became friends with another kid who had been crossing a flooded street. He turned his head for a second and when he looked back his friend was gone. The water was a bit less than knee deep but it was muddy so the road was not visible under the water. He thought his friend had just tripped and expected him to pop up in a second, when that didn't help he started to get worried and started walking around where his friend had been when he nearly fell into an open manhole. He called for help but this storm drain flowed directly into the bay and there was very little hope. They never did find a body. He said it was weird how you can be talking to someone one minute and the next they are just gone. There was no splash no cry of alarm, his friend was just gone. After this the city started welding the man hole covers on. Not so strongly they could not be opened, but enough that the water could not blow them open in a flood.

@mfaizsyahmi 11 месяцев назад

Underrated af. This video shows the shift in the philosophy of stormwater management, from making the problem go away as fast as possible (conveyance), to holding them in place for as long as possible and not let it be a bigger problem down the line (retention). Interesting thing about Tokyo and storm management is that it goes back to the Tokugawa Shogunate period. Edo is very flat and prone to flooding and as such the shoguns started flood mitigation efforts even during the Closed Doors period. They rerouted the most of the flow of the upstream rivers into Tone River, and in part making it the longest river in Japan. Then in the Imperial era giant bypass channels with giant floodplains were constructed, which uprooted quite a bit of homes. Not to mention dams.

@Lam 11 месяцев назад

Wow, thanks for the kind words and the added comment about the history. I didn't know that and I might cover tokyo and flooding in the future.

@delcogoblin 11 месяцев назад

I knew you were going to talk about Philadelphia at some point. The city and its largest neighboring county, Delco, are both BELOW sea level and adjacent to the Delaware River. We've had heavy flooding in the past but it has improved significantly over the years. During hurricane Sandy the only thing preventing my house from being swept away was the genius engineering of the river right behind my property. I remember right after the storm sitting at the edge watching the water speed past what must have been over 30 miles an hour. In Ridley Park there is a gigantic recreational field called the "Hollow" that sits in a massive valley, with a small river at its bottom. Back in the 90s, according to my parents, the entire park used to be a lake. Now it's part of the genius engineering that keeps the area dry.

@Lam 11 месяцев назад

Wow, thank you for sharing that anecdote with me! I'm going to look up that right now

@delcogoblin 11 месяцев назад

@@Lam sure thing! Just a quick correction on my part, the valley is located in "Prospect Park, PA" and officially is called "Moore's lake park". Right next to Ridley so I got it a bit mixed up.

@filanfyretracker 8 месяцев назад

Philly had the vine street expressway fill up in 2021 I think it was. While that was due to lack of working pumps I do wonder if it partially saved the neighborhood from filled up basements. Philly also has that river nobody can spell without using Google, which is funny because its pronounced like Google. Fortunately all my area in SNJ got during Ida was an EF-3 tornado.

@RazzaDazza0 11 месяцев назад

Truly amazing the amount of time you dedicated to this is incredible. I also loved your detailed animations and even quick but still visible mathematical explanations. You also gave me some really cool japan visit ideas once I eventually can do that. I might suggest in the future though that maybe you try to collaborate with other creators to save you time on your hard work. I could see that you looked at practical engineering's video but maybe it might be a good idea for you to reach out for experts to explain topics to you instead of trying to understand it by reading (and losing those 8 hours for the math part/animation and everything). That hard work definitely paid off in the quality of this video just an idea to try to save you time but it's not necessary if you can't or prefer not to make your videos that way.

@Lam 11 месяцев назад

Hey Shockwire, really appreciate the kind words and the advice! Without a doubt growing my team in the future is important. The research process is far too laborious and a lot of it is me getting in my own way. I do know how to better streamline it and asking for helping will be something I do more of in the future. Part of me though and what drives this channel is that I love figuring stuff out on my own. Hope you get to go to Japan!

@RazzaDazza0 11 месяцев назад

@@Lam Thanks for the reply I hope you are able to build that team because considering you did this with a smaller team and the quality is already so amazing I'm sure once you are able to save yourself more time your content will just get even better.

@givepassword 11 месяцев назад

Great video! It’s disappointing to see the video doing so poorly, RU-vid needs more content creators like you! You’re one of only a handful of creators I have notifications on for.

@Lam 11 месяцев назад

Thanks for being a big fan of the channel! I appreciate the support! Sometimes takes a few days for the video to pick up

@Blex_040 10 месяцев назад

It might get a second spring because it's linked first thing in Tom Scott's newsletter this week :D

@RichTCS 11 месяцев назад

Shout out to the Manning Formula! As a young civil engineer 35 years ago, I was given a circular slide rule that was based on the Manning equation and it was so intuitive to properly size storm pipes - and is just as handy today even with the proliferation of computer software.

@bobloblaw10001 8 месяцев назад

Mannings formula is not sufficient in most cases. To do things right you also need to consider inlet and outlet control. I have found that most general civil engineers forget this in practice.

@Blex_040 10 месяцев назад

I'm here from Tom Scott's newsletter, and I'm so so glad he linked this because this is the awesome content I'm always looking for :D It kinda reminds me of The B1M!

@Lam 10 месяцев назад

Awesome! Thank you!

@praveenb9048 11 месяцев назад

Tom Scott, but with more substantial information.

@JoshF710 11 месяцев назад

This was great. Well worth the wait. Look forward to the next one.

@yemreikiz 11 месяцев назад

Great work Andrew! Much appreciated.

@fresusjeak 2 месяца назад

Great video; the editing, and I appreciate the location shots very much.

@chesterfieldjones1055 7 дней назад

That was fantastic. I'm glad I found you, tdotter. You have a new subscriber.

@dariadavay 6 месяцев назад

wow the production quality on this is incredible! very inspiring 🙌

@YangLeee 9 месяцев назад

I love your videos. Complete switch from old content, but still amazing. Thank you.

@aarong5996 7 месяцев назад

I love your videos, they're all so technical and interesting. Well researched and enjoyable, keep it up!.

@FirstLast-kz9ub 11 месяцев назад

Awesome video, happy to wait for as long as is needed with anticipation for the next one!

@Lam 11 месяцев назад

Thanks! Hopefully next one will be faster!

@S1lva139 11 месяцев назад

i can not express how much i love these types of videos and how fasinating they are. keep up the good work man looking forward to the next.

@Lam 11 месяцев назад

Thanks, will do!

@g-rated3514 11 месяцев назад

What an informative and indepth look into this topic. Would like to see more on this, maybe with a collab from one of the folks you mentioned

@Design_Nerd 11 месяцев назад

Hey, you're back! Thank you for making this world a little better. The fact that you explain such important things in such detail and such simple terms sets you apart from other channels and makes you unique. I still can't forget your video about road barriers, I think it's stuck in my head forever (as well as your other videos). Thanks again! Keep going!

@Lam 11 месяцев назад

Really appreciate it! The magic is making things simple

@mrsamvideo 11 месяцев назад

Great video and amazing production quality as usual! You definitely can see the amount of research and time you put into these videos! Keep em coming please!

@Lam 11 месяцев назад

Thanks Sam! Really appreciate it!

@MrTrevortxeartxe 10 месяцев назад

This is such a great video! I knew that a lot of engineering goes into urban design to mitigate flooding, but I had _no idea_ the extent to which it was implemented, especially in the world's biggest cities! Thank you for explaining so thoroughly. Looking forward to more content!

@ruangoto 8 месяцев назад

RU-vid brought you back to my home and wow your videos are always excellent!

@CaptainFalcon92 11 месяцев назад

As always, great engineering topic and a huge work put into it. Underated channel, hope you grow fast

@speedracer739 11 месяцев назад

Really enjoy the topics you choose to do videos on! Really unique and very interesting :)

@brentccochran123 11 месяцев назад

Brilliant job Andrew! You must have spent endless time making this video. It’s a benchmark!! Please keep making more videos!

@wherearemytesticles 11 месяцев назад

Thank you for the insane amount of work you put into this!

@Lam 11 месяцев назад

Thanks for recognizing it! It was a struggle getting this to the finish line

@AtlanticPicture 11 месяцев назад

This is Awesome! Excellent work Andrew! 😎👍

@GarryChoo 8 месяцев назад

Another great video! Very informative as usual! Thanks for producing this! I've never been to Tokyo but I want to go now for this reason!

@BrickfordCityFire 11 месяцев назад

ALways happy to see a new Andrew Lam video in my feed. Always interesting, and the production quality is awesome!

@Lam 11 месяцев назад

Thanks! Glad you liked it!

@robertrigby-jones2805 11 месяцев назад

Fantastic video! Audio great, editing great, knowledge at the top of the game! great content can't wait to see more!

@Metroshica 11 месяцев назад

This video is absolutely amazing. I really hope the algorithm picks this up. You obviously put a lot of effort into this and it really deserves a larger audience.

@Lam 11 месяцев назад

I hope it does too!

@georgenorris2657 28 дней назад

Really fascinating. I hope all city planners watch your video.

@danieljust2226 4 дня назад

Incredible,Incredible,Incredible,Incredible video. 5/5 100% - Thought provoking, technical, visual, digestible. Thank you!

@JTCF 3 месяца назад

Oh wow, it was so cool to randomly find the inspiration for the Storm Drain location from Mirror's Edge!

@rikmorel4870 10 месяцев назад

Amazing video. You kept it entertaining while providing a lot of useful and interesting information. Well done!

@ShArUiA123 11 месяцев назад

Glad to see you back!

@Akieta 11 месяцев назад

Yooo, I can't watch this right now but I am stoked to see it! I'll be sure to watch this tomorrow

@davidvomlehn4495 11 месяцев назад

Loved this, especially that it covered so many approaches.

@mybugatti100 10 месяцев назад

Love these styles of videos. Please keep it up!

@jdub7775 6 месяцев назад

I live in Philadelphia and had no idea we had this infrastructure for rain! This is absolutely amazing! I appreciate Philly a whole lot better! Thank you for the video!

@ceremyjlarkson9475 11 месяцев назад

Great to see this channel again!

@SidarthDasari 11 месяцев назад

Great visuals throughout this video. Happy to dee you pist again!

@muhamadbudiebasri2498 8 месяцев назад

Great video Andrew, I love it, Very thoughtful video. Keep it up man

@richdobbs6595 6 месяцев назад

Thanks. In a development that is happening in my town, they were putting in those brightly covered archs, and then covering them up. I couldn't find anything that described their purposes. But now it is clear that they were one of the underground infiltration systems that you showed.

@B_B_ 11 месяцев назад

ohoho, i absolutely adore learning about infrastructure stuff! this was very informative! it really does give me even more appreciation for city development

@sandwich2473 11 месяцев назад

This was a super good video :O It covers so much but it all flows together so smoothly The humour is a good touch, too :P

@Lam 11 месяцев назад

Thanks! I'm trying to up my storytelling

@xXpkMastersXx 8 месяцев назад

I subscribed for dash cams, but stayed for the new videos, keep it up!

@Duke4Sask 11 месяцев назад

Excellent video. Very informative and the production values are great

@TheSaltyAdmiral 8 месяцев назад

1:04 Woah, that painting with the rain effects over it looked amazing!

@ptx172 8 месяцев назад

Damn...this is a very high quality video I ever watch. We need to support this channel. I am speechless .... I just bow my head to you. From history to design to animation to story telling it takes this a lot of time to make a high quality video.

@SteveWhisenhant 10 месяцев назад

One of the most compelling engineering explainer vids I've seen in a long time. Please keep it up!

@bobloblaw10001 8 месяцев назад

Compelling but amateurish

@giuseppecolombini9697 11 месяцев назад

Great great video! Loved everything about it, keep going!

@PushingThroughThePain 11 месяцев назад

This was fascinating! Thank you for sharing😊

@redviper7192 10 месяцев назад

You put so much effort and extremely captivating and good editing. My favorite informational channel by far. Keep it up!

@Lam 10 месяцев назад

Wow, thanks! Really appreciate it!

@midgetman4206 8 месяцев назад

I love the both of them. Everyone loves the added greenery, and it's inarguably needed in such barren wastelands that is of modern infrastructure. I would have liked to have seen the rivers get more beautification as well, that way they aren't just concrete. The massive feats of architecture and engineering are not also a method to secure reliable function during the most dangerous of storms, they are also incredibly impressive and undeniably cool.

@cynderrs_ 11 месяцев назад

For the level of editing and quality of video production I'm surprised its only garnered a few thousand views so far. Great stuff never the less

@Lam 11 месяцев назад

I'll pick up, it takes a bit of time. Glad you liked it!

@billm6774 10 месяцев назад

Thank you one of my favorite topics. Well done.

@shirishthakare9842 5 месяцев назад

Love you buddy. These r called holding ponds. Much needed in cities. It gives confidence too. city has water reserve within city to use in shortage.

@FordPrefect6x7 11 месяцев назад

Another awesome video Andrew! Thanks!

@Lam 11 месяцев назад

Wow, thank you, really appreciated! I'll try to keep making content you like in the future!

@jiecut 11 месяцев назад

Amazing, this video was crammed with information density. So many different examples and diagram. Really using the visual medium. Had to slow it down to 1x speed.

@Lam 11 месяцев назад

Thanks for appreciating! It's my philosophy, if it's not visual you might as well write an article.

@SeanAubin 8 месяцев назад

This is the best RU-vid video I've seen in the last 6 months! So informative and insightful! The narrative and its presentation really helped my understanding compared to trawling Wikipedia.

@MrAP991 8 месяцев назад

First time viewer here but you earned the sub. Amazing video Andrew!

@kellybrown8638 8 месяцев назад

What a wonderful video. Andrew, you have a gift for teaching

@ElliLavender 11 месяцев назад

I really like your video style and how you make seemlingly "boring" topics super interesting. Keep it up!

@Lam 11 месяцев назад

Will do! Thanks again Elli!

@austinhernandez2716 7 месяцев назад

I love fishing those ditches and channels for some reason, it's my favorite

@xSuperFryx 8 месяцев назад

Wow this video was really good. New subscriber now!

@Tuberuser187 11 месяцев назад

Its always great to find a new infrastructure and civil engineering "channel" (badum tish), instant sub.

@SixthQuarter 8 месяцев назад

Fantastic video. Really interesting and very well presented. New subscriber right here 👊🏼

@JacobVanBuren 11 месяцев назад

How are you not at a million subscribers? The presentation is immaculate and the topic is really interesting!

@Lam 11 месяцев назад

I need to release more videos haha. Thanks Jacob

@skrmshplys9218 8 месяцев назад

this is very informative video. thank you for making this one

@chucksingh9339 3 месяца назад

Incredible video! Subbed

@surviver5738 9 месяцев назад

Amazing work man, thank you!

@Xel_Naga 11 месяцев назад

8:10 its actually called a "fluvial point bar" water slows depositing sediment creating the point not a peninsula :D and the direct other side of the point bar is the "thalweg" where the water is moving fastest eroding the river back. Excellent summary of Flood mitigation

@Lam 11 месяцев назад

Excellent, that is good to know! Sometimes I can only dive so deep on a topic so it's nice knowing the proper name

@philss77 4 часа назад

This video is extremely valuable for us here in Brazil 🇧🇷 . We faced the most devastating flood ever in the south of the country, and I believe events like these (heavy rains) are going to be more common. Thank you for your research and work!

@lllleeeeiiii 10 месяцев назад

This is a rare occasion where i decided to subscribe after just 1 video. Hope this video gets more impression and feel like a start to something special

@Lam 10 месяцев назад

Thanks! That means a lot!

@fightwithdogma 11 месяцев назад

Don't know how I got the chance to get this recommended but this is a very good video which I'm used to see on way bigger channels. Keep it up, that was amazingly informative and passionate.

@lllinois 11 месяцев назад

Best one yet ❤

@blabbergasted4380 8 месяцев назад

Fascinating. Thanks for sharing.

@raykusengsky2205 8 месяцев назад

Great video quality well done 👏

@johnlee7164 8 месяцев назад

The California storm somehow led me here. Great video! Well researched, more people should watch it.

@JonniStar251 10 месяцев назад

Very interesting video, your thought process and these designs are similar to that of my mindset in city management and infrastructure because the capital city of my island has a lot of flash floods

@gameeverything816 11 месяцев назад

That was a cool journey. Thanks!

@aritin5259 11 месяцев назад

Great video as always! I’m from the Philippines, so sadly floods still cause many casualties here, which sucks considering we can experience 20+ typhoons yearly. I hope this type of technology would reach us!

@icanflyfaraway 7 месяцев назад

i'm from the Philippines too, It is upsetting that every homeowners and landowners wants to pour concrete on everything.

@WyleCote 8 месяцев назад

Amazing video! Very informative, interesting and entertaining!

@rakib9039 23 дня назад

I love this type of videos

@simon.griesius 8 месяцев назад

Fantastic video. Well presented, interesting topic.

@lineoflads1388 10 месяцев назад

More infrastructure videos please your style of explanation is amazing!

@patrickl9930 11 месяцев назад

Love the effort you put into production and scripting. I know how much work it is to juggle life and creative outputs like this - excited for your next one, no rush :)

@Lam 11 месяцев назад

Thanks Patrick!

@cs_fl5048 2 месяца назад

Brilliant video..very informative.

@Agleamsnow 11 месяцев назад

Thank you for the effort you put into these videos, the quality is insanly good!

@Lam 11 месяцев назад

Thank you for enjoying it and I appreciate the compliment!

@JohnSmith-me4ik 11 месяцев назад

Superb video. Deserves way more views

@via45 11 месяцев назад

Thank you for the vid. Hope ur trip to japan was nice.

@Lam 11 месяцев назад

It was and thanks!

@_Davy_ 11 месяцев назад

These videos are great and all, but what's the best budget dashcam for 2023? All joking aside, these videos are extremely interesting. Can't wait for the next one in a year.

@Lam 11 месяцев назад

I haven't looked at dashcams in a while