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   Undertoad  Wednesday Feb 14 03:32 PM

February 14, 2007: Big-ass drain hole



Axlrosen finds this tiem via the blog Fogonazos - no I don't know what it means either, but it has highlighted this, the largest drain hole in the world.



This water passageway is the usual spill method for the Monticello Dam in Northern California.



It blows out its hole with great might.



More pics at the blog entry linked to above. They link to this site which explains it in some detail. Apparently the engineering term for this type of spillway is 'morning glory spillway', and they use the term 'glory hole' for this particular one. I decided not to attract Google links by using the term as the subject for today's item.



barefoot serpent  Wednesday Feb 14 03:54 PM

I hope they don't allow boating when the water level is high.



Flint  Wednesday Feb 14 03:57 PM

sign me up!

.



Trilby  Wednesday Feb 14 04:15 PM

I guess to some, that would be an appropriate Valentine's Day image.



LabRat  Wednesday Feb 14 04:39 PM

I'm never dissapointed in IOTDs that use 'big-ass' in their title....

UT said Gl0ry h0le. huh huh huh huh huh



Sheldonrs  Wednesday Feb 14 04:46 PM

Just what I need, another draining hole.



Elspode  Wednesday Feb 14 04:47 PM

Someone with mad 'Shop skills needs to insert a crane with a giant rubber sink stopper on a cable hovering over that drain.



Cloud  Wednesday Feb 14 04:51 PM

Wow. It's like the resting place of the Water Sarlacc!



xoxoxoBruce  Wednesday Feb 14 05:29 PM

Man, what a ride.



Mav  Wednesday Feb 14 06:31 PM

it looks strangely like the portal from Sliders

wonder what parallel world is on the other side ;p



milkfish  Wednesday Feb 14 06:54 PM

It should be swirling counter-clockwise, this big ass-drain hole.



zippyt  Wednesday Feb 14 06:57 PM

Man, what a ride.

A dam a few hours away had to put a fence around there "HOLE " because drunk idiots were waiting for the water level to drop ( when there was just a trickle running thru ) and jumping down the "HOLE " on rafts , After 3-4 of them came shooting out a piece at a time , the Gubment put up the fence .



lumberjim  Wednesday Feb 14 07:00 PM

glory hole

I used to work with a guy. the guy was named Dave. Dave used to manage an adult book store. The book store had those little booths in the back with the coin operated porn movie machines. Shortly after he took the job, he realized that there were glory holes between these booths. Disgusted, he patched them over with plywood discs. After a month, his video sales had dropped in half. So, he removed the patches, and sales went right back up.



zippyt  Wednesday Feb 14 07:05 PM

here's some scale of the "OUT pipe "



xoxoxoBruce  Wednesday Feb 14 08:44 PM

Yeah, 72 ft diameter at the top tapering down to 28 ft dia at the out pipe. 48,400 cubic ft per second max. I wonder how long it would take to make it through the 700 feet?



zippyt  Wednesday Feb 14 08:56 PM

wonder how long it would take to make it through the 700 feet?

Probley the rest of your life !!!



Aliantha  Wednesday Feb 14 09:25 PM

It doesn't look real to me. The white water in the first pic looks photo shopped.



zippyt  Wednesday Feb 14 09:46 PM

I have not seen this one its self , but I have seen 3-4 others



No snide ass comments about glorys holes JIM



monster  Wednesday Feb 14 10:12 PM

Quote:
Originally Posted by Elspode View Post
Someone with mad 'Shop skills needs to insert a crane with a giant rubber sink stopper on a cable hovering over that drain.
No 'shop skills -this is my first ever creation apart from a few 'thread bombs" (and I needed rescuing/therapy/beer several times during creation), but never one to resist a challenge......


zippyt  Wednesday Feb 14 10:17 PM

Well done Monster!!!!



monster  Wednesday Feb 14 10:17 PM

ta



SPUCK  Thursday Feb 15 04:51 AM

I actually stood and looked at that exact drain with my girlfriend during college days. It's just up the road from UC Davis. It made the hair go up on the back of my neck. It is quite a horrific sight when you think about it. Then you just walk down the road a hundred feet and look way down in the canyon at that jet coming out. I was amazed and appalled by the one little swimming pool lap lane divider that surround the hole out about fifty feet. I wonder how many ducks and geese have not noticed it in time. The only advantage over the usual bottom of the dam (safer version) is that this thing auto regulates. Water level drops - draining stops.

That road is fun though. There are about 10 creeks that cross it at concrete flats. They were fun to hit at about 45MPH. 3" deep by 10 feet wide. Nice and straight. BOOOOSH!



Bromskloss  Thursday Feb 15 07:38 AM

Quote:
Originally Posted by xoxoxoBruce View Post
Man, what a ride.
Absolutely! Here's one, that one might perhaps actually use for that purpose.


xoxoxoBruce  Thursday Feb 15 08:59 AM

Quote:
Originally Posted by Aliantha View Post
It doesn't look real to me. The white water in the first pic looks photo shopped.
Fortunately for life, as we know it, on Earth, water has the amazing property of cohesion which allows it to be a liquid.
As the water flows over the rim, it's all cohesively connected and uniform, then gravity causes it to increase speed. When the water accelerates it gets torn away from the slower water behind and the faster water ahead. Droplets form of the water that's close enough in speed to have cohesion triumph. That's the white in the first picture, water droplets which scatter light.


Elspode  Thursday Feb 15 09:55 AM

Monster, that's awesome! Exactly what I was seeing in my head.

Go, you!



Kitsune  Thursday Feb 15 09:58 AM

Quote:
Originally Posted by zippyt View Post
here's some scale of the "OUT pipe "
I didn't think you were supposed to go in the out hole.


Elspode  Thursday Feb 15 10:06 AM

I guess the spillway shaft itself is just a tunnel drilled through solid rock? I'd like to the see profile of that...I mean, it has 770' of drop, and has to make a bend from vertical to horizontal at some point. The water pressure at that bend must be tres' impressivo.



Elspode  Thursday Feb 15 10:07 AM

Quote:
Originally Posted by Kitsune View Post
I didn't think you were supposed to go in the out hole.
That's a myth perpetrated upon clueless men by unadventurous women...


Elspode  Thursday Feb 15 10:30 AM

Two views of a dry glory hole.



barefoot serpent  Thursday Feb 15 10:49 AM

The guy in the blue jacket is actually H. Ross Perot:

see Jim, I told ya that giant sucking sound was coming from California



monster  Thursday Feb 15 12:55 PM

Quote:
Originally Posted by Elspode View Post
Monster, that's awesome! Exactly what I was seeing in my head.

Go, you!

thanks

Mind you, while I was poking around in your head looking for that image, I noticed a few other things you might want to get checked out


xoxoxoBruce  Thursday Feb 15 01:10 PM

Quote:
Originally Posted by Elspode View Post
I guess the spillway shaft itself is just a tunnel drilled through solid rock? I'd like to the see profile of that...I mean, it has 770' of drop, and has to make a bend from vertical to horizontal at some point. The water pressure at that bend must be tres' impressivo.
Pretty sure it's concrete all the way, constructed integral with the dam. Hoover/Boulder Dam, however, uses bypass tunnels through the rock that are fed by a spillway channel. I've seen that setup and those tunnels must be 50 feet in diameter.


Elspode  Thursday Feb 15 01:59 PM

Quote:
Originally Posted by monster View Post
thanks

Mind you, while I was poking around in your head looking for that image, I noticed a few other things you might want to get checked out
Yeah, it gets kinda dark and gloomy in here sometimes.


monster  Thursday Feb 15 02:03 PM

Quote:
Originally Posted by Elspode View Post
Yeah, it gets kinda dark and gloomy in here sometimes.

Don't worry, I left a little something to cheer you up.....


seakdivers  Thursday Feb 15 02:16 PM

I can't help but see that and think of the Goatse thing that everyone told me not to look at.
I was permanently damaged....



monster  Thursday Feb 15 02:39 PM

Quote:
Originally Posted by seakdivers View Post
I can't help but see that and think of the Goatse thing that everyone told me not to look at.
I was permanently damaged....
maybe it's just the title of the thread that put you in the frame of mind?

(this 'shop thing's fun -I may never get anything useful done in the entire rest of my life )


xoxoxoBruce  Thursday Feb 15 05:39 PM

Quote:
Originally Posted by seakdivers View Post
I can't help but see that and think of the Goatse thing that everyone told me not to look at.
I was permanently damaged....
You're lucky you didn't see Tub Girl.


Kitsune  Thursday Feb 15 05:47 PM

Quote:
Originally Posted by seakdivers View Post
I can't help but see that and think of the Goatse thing that everyone told me not to look at.
I was permanently damaged....
Now you can see Goatse everywhere, thanks to Goatse Stickers!


seakdivers  Thursday Feb 15 06:40 PM

Quote:
Originally Posted by xoxoxoBruce View Post
You're lucky you didn't see Tub Girl.
Unfortunately I saw that one too.


Elspode  Thursday Feb 15 08:24 PM

Quicktime VR panorama of another BLM dam with a glory hole spillway in the Shasta/Whiskeytown Recreation area in Northern California, my father's stomping grounds.



zippyt  Thursday Feb 15 09:24 PM

so if it gets cold enough to freeze would it be a Big Ass Ice Hole ???



seakdivers  Friday Feb 16 12:04 AM

Quote:
Originally Posted by Kitsune View Post
Now you can see Goatse everywhere, thanks to Goatse Stickers!
oh my god I need those!! I don't know why, but I do!!


xoxoxoBruce  Friday Feb 16 11:51 PM

Yup, you're corrupted.



rkzenrage  Wednesday Feb 21 03:06 AM

I want them for my wheelchair...



Kitsune  Wednesday Feb 21 07:47 AM

I feel awful for this threadjack, but it isn't completely out of the ordinary for a topic like "Big-ass drain hole" to degenerate into goatse.

Quote:
Originally Posted by seakdivers View Post
oh my god I need those!! I don't know why, but I do!!
Do you iGoatse?




glatt  Tuesday Mar 20 09:03 AM

.



SPUCK  Wednesday Mar 21 02:30 AM

No no no NO! I am not going to say what that looks like!



axlrosen  Wednesday Mar 21 12:16 PM

Quote:
Originally Posted by SPUCK View Post
No no no NO! I am not going to say what that looks like!
An alligator's belly button?


toranokaze  Monday May 26 02:16 AM

This reminds me of an ex-girlfriend.



Gravdigr  Monday May 26 05:15 PM

Quote:
Originally Posted by toranokaze View Post
This reminds me of an ex-girlfriend.
I think I know her.


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