Big question. I need your opinion on something. If Mipha was never saved, and Vah Ruta was never calmed, what effect would it have on Hyrule. We know that it will flood, however I doubt the Shiekah would have the ability to create water from nothing (like to gods) so I just assume they are teleporting so the ocean won't rise. With this in mind, none of the major settlements would really be affected. Gerudo Town is far enough out of the path that the river would take through lake Hylia, Riti Village is also out of the way, and not only does it have a natural moat (if you could call it that) but also a canyon in the way. Korok Forest has magic and a moat and is also out of the way, Goron City is also to high up and out of the way, Tarrey Town is really highup and out of tge way, Zoras domain has pretty good drainage and it will probably go through the several other exits to not cause that muc damage, Kakariko Village is safe in the mountains, Hateno Town is safe and out of the way, and Lurelin Village is also out of the way and won't be damaged unless the ocean floods.
WOO LET’S FLOOD A CIVILIZATION AND SEE WHAT HAPPENS!
**Zelda meter is the meter system of objmap.zeldamods.org, but in accordance with previous posts I'm gonna convert it later to "actual" meters that I think is more realistic. You’ll see why later.
ALRIGHTY, SO LET’S START WITH MEASURING TIME!
So, East Reservoir Lake is 545 zelda meters long (light blue) and 340 zelda meters wide (blue)
Or if we want to see it as more of a circle, it has a radius of 239 zelda meters
Rutala Dam itself is 30 zelda meters wide and 140 zelda meters across. (see purple)
Taking a picture and using an online ruler, I found that the damn is roughly 123 zelda meters tall. (1 cm equal to 17.5 zelda meters by using the 140zm measurement)
Technically speaking, the dam's depth is infinite in the game, so we'll just use this damn's height as the depth.
And before you tell me that I should count the height of the rocks that the damn sits on top of as part of the depth, I'm gonna say not because dams typically block preexisting waterfalls, and given the rounded erosion of the rocks here, I would say that is also the case. Therefore, this was a waterfall that fed into the Rutala River and is not counted for the reservoir's depth.
LW Reservoir Surface Area: 185,300zm (That is only 0.1 zelda kilometer. For comparison, the 45th largest reservoir in the world, Capivera Dam [last place on Wikipedia list] is still 515 square kilometers. The largest ones being in the 60k areas. I’ll come back to this point later.)
(pi)r^2 Reservoir Surface Area: 179,451zm2 (179zkm2) [Just got these numbers of surface areas to demonstrate they're practically the same whether you see it as circular or rectangular. I think the circle will be more accurate so going forward I will be using it as my basis for calculations]
The Total Water Rutala Dam Holds Back: 22,072,473zm3 [Instead of just using the sphere volume formula or the LWH formula, I used my more accurate surface area made with the the radius and multiplied by the dam height(is that the,,,cylinder formula? I think so)]
Rutala Dam is supposed to be the largest reservoir in Hyrule, shown very prominently on the map. The largest reservoir(by surface area) in our world is Lake Winnipeg, with a surface area of 24,514 km2, (but only has a depth of 12 meters.)
But here it is on a map of Canada:
To reiterate, Lake Winnipeg has an area of 24,514km, and with zelda meters, East Reservoir Lake has an area of 179.
“BUT KIP! MAYBE EAST RESEVOIR LAKE IS JUST REALLY REALLY SMALL, HYRULE IS PRETTY SMALL ISN’T IT?”
Ok, so comparing the reservoir to one of the the largest, if not THE largest, settlements in the game, Zora’s Domain, we can see that the reservoir is several times it’s size.
But you’ll also note that Zora’s Domain has a diameter of 234zm. That, the entire city, the entire DOMAIN of Zora. 234 zelda meters. Manhattan is 21,100 meters long. Manhattan, by the way, is a fifth fraction of the New York County, which is the smallest county in the United States of America.
234 zelda meters, that’s an area of 43,005zm2. Do you know what else is aobut 40k meters squared in real life? Your nearest Walmart. Just a bit bigger than your local Tesco. Supposedly the entire Zora population, that has been untouched by the 100 year apocalypse and arguably had room to GROW over this time, is living in a Trader Joes.
So I hope this illustrates why I’m converting the zelda meters used on the website to something that I think would be more realistic in the realm of Hyrule. You can find my very loud and kinda embarrassing but factual! and old post about the conversion here, same link as at the top, but essentially just trust me on the conversation that 1zm is equal to 30 real-life meters.
New Realistic Measurements:
Reservoir Length: 16,350m or 16.35km
Reservoir Width: 10,200m or 10.2km
LW Reservoir Surface Area: 166,770km2
Reservoir Radius: 7170m or 7.17km
(pi)r^2 Reservoir Surface Area: 5,383,530m2 or 5382.53km2
The Total Water Rutala Dam Holds Back: 19,865,225,700m3 or 19.8 million cubic kilometers of water AKA 19.8 billion kiloliters AKA 5.2 trillion gallons o’ agua
Now THAT sounds more like the biggest dam in all of Hyrule. In fact, it adds up with the stats of the largest dam in our world(by gallons held), that is, the Three Gorges Dam.
The Three Gorges Dam, located in China, ALSO holds back 5 trillion gallons of water/19 billion cubic meters. Although it is a lot shorter than Rutala’s measurements--I think the amount of water that it holds back will be a perfect guide to see the devastation that Rutala’s potential breakage could cause on Hyrule.
There actually is a simulation online about what would happen if the Three Gorges Dam collapsed but I’m not gonna link it cause it might be a bit too distressing, but just know that I based this on that simulation.
Firstly, the biggest sigh of relief comes from the Samasa Plain.
The plain is very very low and slopes down into the Lanayru Bay, so a lot of the water would empty into there. However, the plain would then be totally submerged, so RIP to the shrines and ruins around there. Areas in red as submerged and areas in green would become islands or marshes.
And with that, the water level of Lanayru Bay would rise drastically. Blue is the new water level, dark green are islands, and light green are potential wetlandish areas that would form as time passed.
But basically, Rutala river would have a new branch that spills directly into the Lanayru Bay.
So now you may be thinking,
“HEY KIP THAT’S NOT SO BAD! MOST OF IT SPILLS OUT INTO THE BAY SO IT’S NOT A LOT OS DESTRUCTION! YAY!”
Yes, a lot of the water is going to spill out over Samasa Plain and yes, Lanayru Bay will house a lot of it. But here’s the kicker.
It would take 1.25zkm or 30km for the water to make it’s way to the ocean, and the water will be traveling SUPER fast--about 100 kilometers per hour.
And that water wants to move, it wants to flow, and Lanayru Bay cannot help all that water flower because: It’s shallow as fuck.
This chest shows the deepest point in all of Lanayru Bay.
I dropped a windcleaver down in the water: and using a generous GENEROUS estimate of 2 feet per second given the conditions of the still water in the bay--It took 5 seconds for it to float to the bottom. 10 feet. 3 meters. That’s just barely deeper than the deep end of a backyard swimming pool.
But even being extra EXTRA generous and using a real world estimate: Bays would be around 14 feet deep, roughly 4 meter. And we can be even more generous and say the sounding mountains can accommodate 30 feet of height. 9 meters. 9 + 4 = 14 meter height times 30km by 10km(width) = That’s 4.2 cubic kilometers, or 4.2 billion kiloliters of the 19.8 billion kiloliters in total.
uh oh. wheres the other 15.6 billion kiloliters of water gonna go?
It’s like taking a firehose, and filling up a bathtub. Yeah, the tub’s gonna catch a lot of that water, but that firehose has way, way, way, more water than that tub can hold, and when the tub can have a leak or hole on it, but the rate that that hose is going is astronomically faster than the rate the tub can expel water, so it’s just gonna overflow and water will still spill everywhere
[And this isn’t even taking into the account that Rutala Dam is SIGNIFICANTLY higher that it’s surrounding landscape, and would pour into the river with such a force that it could cause a giant tidal wave and break through the rocky boundaries of the pre-existing Rutala River causing even more water to flow into the bay]
Lanayru Bay would be occupied with a lot of water, and since the other 15.6 billion kiloliters of water can’t immediately flow into it, it’s gonna take the scenic route through Rutala River. It’s high mountains on either side basically just make it a death funnel.
Here’s how that would look:
This is the new water level for the Lanayru Wetlands. MAn they weren’t lying, those lands do be wet.
so yeah everything is submerged in between 10 to 20 meters of water and you might be thinking
“WELL KIP, I THINK THAT’S NOT SO BAD AFTER ALL! AT LEAST NO MAJOR LANDMARKS WERE DESTROYED AND NO ONE WAS HURT!”
Well, bestie, here’s the thing. This length of land is 3 zelda kilometers long. AKA 90 kilometers long. And you might recall, I said, that this, 3000 meter tall wall of water was traveler at 100km per hour. Well the good news is, my calculations are a lot easier for this as this large stretch of flat Lanayru Wetlands land lines up perfectly with the flat areas of Yichange, (which was actually traveling at twice the speed compared to Rutala because it didn’t have Lanayru Bay to open up into)
But the bad news is, the video is five minutes long, and this is just the first 50 seconds. This water is destined to travel 400 kilometers. That’s about half of the country of Wales, by the way. The entire length of the state of Virginia.
Here’s the rough path of the total flooding that other 16 billion kiloliters from Rutala Dam
Oh, and what’s worse is that the rivers in central Hyrule? Yeah they’re like HALF the depth of Lanayru Bay so the flooding will be even WORSE :D
So here’s the new waterlevel map!
Overtime, a lot of the water is gonna spill onto the paths through Central Hyrule, new swamplands, creeks, etc. etc. The path to the Gerudo Desert will be fin initially, as the water as slowed to the point where it won’t put immediate damage since the bridge is so high. But that new water level plus the influx of water from the River of the Dead is definetly gonna erode that over time and maybe possibly will just collapse and prevent anyone from leaving or entering the desert.
Hyrule Castle will be even more of an island, as the two islands to the left and right of it will be moslty submerged. Also the entire path through Eldin is just fucking done. Everyone in Akkala and Eldin? You’re trapped there. It’s basically a new Lake Hylia but no bridge. Sorry Robbie.
Oh, and also these rapid waters are carrying the debris of it’s destruction, whether the corpses of travelers or giant rocks that it broke off from the side of mountains. So everything is a mess, and depending on the amount of debris, it could completly alter water paths to go even more in land. The rivers are shallow enough, so just pilling in more rocks and dam metal and dirt just makes things shallower
Lake Hylia will be fine, the mini islands are gone, but as a whole, the bridge and the height of the surrounding ridges will keep the water in there. Although a lot of Necluda is basically a goner, and the bridge on either end of Dueling Peaks is totally decimated.
All of Hyrule’s economy is fucked. Every major trading path--gone. It’s basically gonna breed even more ethnocentricism, and a bunch of wildlife and sources for food are gone. And not to mention the climate, that’s gonna be fucked too as years pass. Rito and Zora will probably be the most fine? Hylians are fucked though, we destroyed like five stables and basically every river setllement there is. Oh and that influx of water is gonna fuck with the fishes so Hateno and Lurelin aren’t totally out of it either!
Gerudo? Well good thing they’re all lesbians because they sure aren’t going out to woe anybody once those stone pillars holding the bridge give way to the new water levels. Gorons will actually not even know anything’s wrong if I’m being honest. Sheikah? Well that point by Eagus Bridge and Sarhasra slope is gonna connect into a river at some point so I guess they can be a fishing village now.
Oh an RAIN I didn’t even think about that, yeah people are totally gonna die. And if Ruta CONTINUES to pump water into Hyrule (because again, this is only from an INITIAL burst of the damn. Well...
Zora’s Domain will be gone within the year. Water levels will just continue to rise, probably take on Central Hyrule first, but then after that the Gerudo Canyon. Also if flooding in Zora’s Domain REALLY continue it would probably spill over and destroy Tarrey Town. So not good all around!
But I think the main takeaway that we can all settle with is that the Flower Lady and her garden are absolutely, positively, dead.