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Old September 9th, 2010, 09:51 PM   #21
ttownfeen
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Bridge are very expensive - they can cost millions of dollars. And if this an area prone of high-volume flash floods, there is the possibility of the bridge washing out.
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Old September 9th, 2010, 10:09 PM   #22
g.spinoza
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There's no way that bridges for these kinds of very shallow, very narrow, very "seldom" rivers could cost millions. Not even if you cover them in gold.
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Old September 9th, 2010, 11:05 PM   #23
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The problem is the bridge may need to be designed at the peak discharge of a river, which would make it over-dimensioned for 95% of the time, thus requiring high cost. Main routes should be bridges, but I don't see a big problem when you're talking about country roads with only a few vehicles per day.
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Old September 9th, 2010, 11:12 PM   #24
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Quote:
Originally Posted by ChrisZwolle View Post
Main routes should be bridges, but I don't see a big problem when you're talking about country roads with only a few vehicles per day.
Well, the problem is when some of those few vehicles are dragged away by the waters... shouldn't road be safest as possible, in every condition?
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Old September 9th, 2010, 11:17 PM   #25
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If the water is high enough to drag away cars than noone will alow traffic on such roads. Note that all these crossings are approved by officials and signed with traffic signs.
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Old September 9th, 2010, 11:19 PM   #26
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Quote:
Originally Posted by Stainless View Post
^ How deep do they expect the average car to wade through safely. It seems odd that cars don't state anywhere how high off the ground the air intake is. Until you can see that car going through that looks like any normal river, not something so wide and flat.
If it is less than one feet it should be safe for any car to drive across. Most of them have depth markers to indicate the depth of the water.

Last edited by diablo234; September 9th, 2010 at 11:26 PM.
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Old September 9th, 2010, 11:21 PM   #27
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I'd say people trying to drive through flooded underpasses are a much bigger problem than a few middle-of-nowhere roads that occasionally flood.
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Old September 9th, 2010, 11:39 PM   #28
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In the netherlands there are some unplanned low water crossings too

at the a1:

source www.d66oldenzaal.nl
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Old September 10th, 2010, 12:26 AM   #29
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There're some very wide mostly-dry rivers in NE Italy, so I found something there:


http://www.panoramio.com/photo/28214679 by Fletchxxx


http://www.panoramio.com/photo/21548013 by Stefano Gasparotto

Each time new pavement:
image hosted on flickr

http://www.flickr.com/photos/[email protected]/4884232643 by Alberto04

Also check out this photo.
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Old September 10th, 2010, 03:39 AM   #30
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Quote:
Originally Posted by peezet View Post
In the netherlands there are some unplanned low water crossings too

at the a1:

source www.d66oldenzaal.nl
That's just sheer stupidity... (vehicles coming towards camera) Idiots who blast through the water like that, DESERVE to write their vehicles off...
Quote:
Originally Posted by Stainless View Post
^ How deep do they expect the average car to wade through safely. It seems odd that cars don't state anywhere how high off the ground the air intake is. Until you can see that car going through that looks like any normal river, not something so wide and flat.
If you look under the bonnet of your vehicle, the air filter is your clue. As a general guide... If the water comes up to the bottom of the door of your vehicle.. then you have reached the maximum safe water depth for your vehicle (For water that is NOT moving). If the water IS moving, the maximum safe depth is from the ground, to the bottom of the rim.

What most drivers DON'T realize, is, is just how LITTLE water it takes to wash a car off the road. If your not sure about the depth/flow of water, THEN UNDER NO CIRCUMSTANCES ATTEMPT TO FORD IT!!!!!
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Old September 11th, 2010, 01:21 AM   #31
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Quote:
Originally Posted by g.spinoza View Post
Well, the problem is when some of those few vehicles are dragged away by the waters... shouldn't road be safest as possible, in every condition?
If it wasn't safe, they'd build a bridge.

The UK road sign for it; I know, its a crappy textual sign, maybe they should have a wave?



There is a website on ford's in the UK, which has identified 1927 fords in the UK, 1852 of them have been photographed and "40 overseas", wether they mean the overseas territories, Ireland or just general overseas, I don't know

This is the website: http://www.wetroads.co.uk

It shows 8 in London, for example, 4 of them are normal roads tidally flooded by the Thames, for example:


Last edited by DanielFigFoz; September 11th, 2010 at 06:44 PM.
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Old September 11th, 2010, 01:42 AM   #32
seem
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Quote:
Originally Posted by peezet View Post
In the netherlands there are some unplanned low water crossings too
Also in Slovakia.

New part of R1 one year ago -


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Old September 11th, 2010, 01:12 PM   #33
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Estonia has no official low water crossings but in extreme cases(as it was this spring), roads in swampy areas may be covered with water. Here's one video from Soomaa National Park which has practically no permanent inhabitants and is infamous in Estonia for having a "fifth season" when many rivers overflow:
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Old September 11th, 2010, 06:40 PM   #34
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A situation for cyclists in the Netherlands



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Old September 11th, 2010, 09:36 PM   #35
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Interesting, never seen any sign like that in the Netherlands
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Old September 12th, 2010, 03:23 PM   #36
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Western Australia has quite a few spots like these. During the wetter times of the year many highways can become flooded, they are usually clearly marked with all kinds of warnings and depth markers so the motorists can see the water depth.
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Old September 12th, 2010, 09:23 PM   #37
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They're rather common in Mexico. We have this sign for them:

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Old September 16th, 2010, 12:41 AM   #38
diablo234
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Quote:
Originally Posted by peezet View Post
In the netherlands there are some unplanned low water crossings too
LOL, We have those in Houston as well, sometimes during rare weather occurances such as Hurricanes or Tropical Storms they completely flood. Here are some photos taken after Tropical Storm Allison devastated the area way back in 2001.





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Old September 16th, 2010, 12:53 AM   #39
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Canastra's Hill in the state of Minas Gerais, Brazil.







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Old September 16th, 2010, 12:58 AM   #40
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Sao Paulo, Brazil.
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