this post was submitted on 16 Sep 2023
416 points (99.1% liked)

pics

18722 readers
503 users here now

Rules:

1.. Please mark original photos with [OC] in the title if you're the photographer

2..Pictures containing a politician from any country or planet are prohibited, this is a community voted on rule.

3.. Image must be a photograph, no AI or digital art.

4.. No NSFW/Cosplay/Spam/Trolling images.

5.. Be civil. No racism or bigotry.

Photo of the Week Rule(s):

1.. On Fridays, the most upvoted original, marked [OC], photo posted between Friday and Thursday will be the next week's banner and featured photo.

2.. The weekly photos will be saved for an end of the year run off.

Weeks 2023

Instance-wide rules always apply. https://mastodon.world/about

founded 1 year ago
MODERATORS
 

The Veluwemeer Aqueduct, also known as the Drontermeeraqueduct, is a unique structure in the Netherlands that carries a canal over a large lake.This impressive water bridge spans the Veluwemeer lake, connecting the provinces of Flevoland and Gelderland

all 28 comments
sorted by: hot top controversial new old
[–] [email protected] 62 points 9 months ago (1 children)

It’s basically a very short tunnel when you think about it.

[–] [email protected] 16 points 9 months ago

Or a bridge for the water

[–] [email protected] 33 points 9 months ago

my brain took way too long to understand the picture

[–] [email protected] 17 points 9 months ago (1 children)

Anyone know what the depth of the water is above the crossing point?

[–] [email protected] 13 points 9 months ago* (last edited 9 months ago) (1 children)
[–] [email protected] 17 points 9 months ago (1 children)
[–] Nouveau_Burnswick 14 points 9 months ago

93 years to build! I should calm down about the local projects.

[–] [email protected] 15 points 9 months ago

You don't really notice it when driving underneath, but standing at the top or sailing across such aqueducts is very weird

[–] [email protected] 12 points 9 months ago (2 children)

Any reason this was more practical than building a bridge?

[–] [email protected] 15 points 9 months ago (1 children)
[–] [email protected] 6 points 9 months ago (1 children)

But it's only 3m deep. How long are keels on tall sailboats?

[–] [email protected] 16 points 9 months ago* (last edited 9 months ago) (2 children)

A lot of the sail ships used on inland waters here have flat bottoms, like for instance the skûtsje. So they can sail in quite shallow waters.

[edit] I’ve looked it up and for instance a tjalk (historic freight ship) can have a mast height of around 20-25 meters, but has a sailing depth of only 80-200 cm. Due to their flat bottoms, they can easily move around the inland lakes and canals, which are often only a few meters deep.

[–] gaael 3 points 9 months ago

Most 10-meter-ish sailboats have less than 3 meters-deep keels, usually less than 2 meters.

[–] [email protected] 1 points 9 months ago

Ah, interesting. Thanks.

[–] [email protected] 8 points 9 months ago

No height restriction for boats with masts perhaps

[–] [email protected] 12 points 9 months ago (4 children)
[–] [email protected] 7 points 9 months ago

A lot of the larger boats on inland waters here have flat bottoms, and the smaller boats are just not that deep. So it’s sufficient for the typical boat traffic.

[–] espentan 4 points 9 months ago (1 children)

Exactly, I doubt you can sail a Panamax through that. Useless. /s

[–] Nouveau_Burnswick 2 points 9 months ago

Tallest human was 272cm, so it is Humanmax!

[–] [email protected] 1 points 9 months ago
[–] [email protected] 8 points 9 months ago (2 children)

I don't get it. Is it a road bridge across the lake with an aquaduct above it? But then is the road above or below water level?

[–] [email protected] 18 points 9 months ago* (last edited 9 months ago) (1 children)

This is the Netherlands, where swaths of the land is below sea level. So, naturally, this is a road below the water's surface with an aqueduct above it, enabling boaters to cross over the road. Or at least that's what I'm seeing here.

[–] [email protected] 3 points 9 months ago

Got it, thanks!

[–] [email protected] 7 points 9 months ago

It's a road on a man-made land bridge before and after this aqueduct. In this shot here, it's a bit hard to see, but the road is actually on a slight angle to make more room for the aqueduct. The walls around the road are only for this section, as out of frame the road is almost certainly on top of your bog standard land bridge.