Water Hole

This is a damn designed to flow down a tube. It's in northern california, you can google it.

it's named bellmouth floodgate.. one of dam structure besides the spillway..

you must be an idiot to belive this ...

You devided by zero didnt you?!

wow

The land of the lost! or the journey to the centre of the earth!

Wow this is really cool

where there are dams. They prevent the water behind the dam from rising too high and flooding too much ground/putting to much stress on the dam. It`s not actually a hole, but a big tube that reaches up to just below the maximum allowable water level. You can clearly see this when the water level is lower. You can also 'see' this in this video, because the hole has such a clear circumference. If the hole was somewhere near the bottom of the lake it would cause a whirlpool that would look a whole lot messier.

Isn't that a sink hole? When the ground underneath gives out, then the water does down the hole... sink hole or is it really a hole man made? Anyone know for SURE what it is and where it is? It's just a video...??

in san juan

It reminds the above movie, although this is much scarier.... any idea which is this place??

It's like giant bathtube, but there's no whirpool ?

Wonder how ppl might have reacted who were in the boat