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12 Mile Gravity Sewer

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(@nick-jewett)
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Fun stuff right here!

Attached files

 
Posted : May 16, 2017 2:25 pm
(@paden-cash)
Posts: 11088
 

And a straight shot to boot!

How many BMs do you have referenced in 65000' ? 50 sounds like a good round number.

 
Posted : May 16, 2017 2:31 pm
(@rj-schneider)
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[SARCASM]I always wondered what the did with old used gravity..hmmm[/SARCASM]

 
Posted : May 16, 2017 3:32 pm
(@a-harris)
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That would not be possible here, the land is not near flat enough over 12mi distance.

Back in the 1970s we did something around Hope, Arkansas that could have fit that profile.

 
Posted : May 16, 2017 7:30 pm
(@nick-jewett)
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200+ ft elevation change over the run. Entire route follows floodplain.

There were 76 BM's for the main pipe run and a total of 243 for entire project. That includes all control set for boundary survey as well. And no idea how many hubs were pounded in.

 
Posted : May 16, 2017 7:46 pm
(@john-putnam)
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Closest thing I have worked on is a 4 mile forced main. 2 24" lines, that's a lot of shit and process water.

 
Posted : May 22, 2017 6:08 am
(@flga-2-2-2-2-2-2-2-2)
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Cripes, in Florida you would have at least 24 lift stations on a 12 mile run.

 
Posted : May 22, 2017 6:14 am
(@tommy-young)
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FL/GA PLS., post: 429400, member: 379 wrote: Cripes, in Florida you would have at least 24 lift stations on a 12 mile run.

[SARCASM]What, you think contractors can't lay 12 miles of sewer with 2 feet of fall?[/SARCASM]

 
Posted : May 22, 2017 6:21 am
(@flga-2-2-2-2-2-2-2-2)
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Tommy Young, post: 429401, member: 703 wrote: [SARCASM]What, you think contractors can't lay 12 miles of sewer with 2 feet of fall?[/SARCASM]

Of course they could, provided Michael Binge, TDD, and Nearly Normal were in charge. Probably do it in one day. 😀

 
Posted : May 22, 2017 9:09 am
(@james-fleming)
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FL/GA PLS., post: 429460, member: 379 wrote: Of course they could, provided Michael Binge, TDD, and Nearly Normal were in charge. Probably do it in one day. 😀

One to cut line
One to play the banjo
One to keep an eye out for astronomical anomalies.

 
Posted : May 22, 2017 9:25 am
(@tommy-young)
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James Fleming, post: 429463, member: 136 wrote: One to cut line
One to play the banjo
One to keep an eye out for astronomical anomalies.

You're going to need another crew member, because TDD has to be on constant watch to make sure no one is consuming any water.

 
Posted : May 22, 2017 11:08 am
(@flga-2-2-2-2-2-2-2-2)
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James Fleming, post: 429463, member: 136 wrote: One to cut line
One to play the banjo
One to keep an eye out for astronomical anomalies.

One to cut line: Yes MB can cut line at 2 miles per hour

One to play the banjo: Nope TDD can dig a trench (any depth) at 1.9 miles per hourƒ??

One to keep an eye out for astronomical anomalies: Yes, while installing the lift stations and laying pipe at 1.7 miles per hour. NN always wears a tinfoil hat complete with high Tec antennas for anomalies as well as approaching spacecraft.

😉

 
Posted : May 22, 2017 12:58 pm
(@paden-cash)
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FL/GA PLS., post: 429400, member: 379 wrote: Cripes, in Florida you would have at least 24 lift stations on a 12 mile run.

Here's an outfall line I had the pleasure (!?) of working on when planned and built in the early '70s. About 12 miles of an 18 and 24 inch line with an overall average grade of .0015. Then in the late '80s (completely different company) I had the pleasure of inspecting a rehab of the entire line AND a retrofit of the WWTP.

The only thing we never found in a MH (or the bar screen at the plant) was a human body. We did find one intact (but very dead) Shetland pony and what was left of a pool table. Bowling balls and kitchen chairs were common.

Attached files

bwa.pdf (167.5 KB) 

 
Posted : May 22, 2017 1:08 pm
(@flga-2-2-2-2-2-2-2-2)
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paden cash, post: 429492, member: 20 wrote: Here's an outfall line I had the pleasure (!?)

Nope, did that but only a mile or so (when I was young and stupid) never again. 😉

 
Posted : May 22, 2017 2:46 pm
(@spledeus)
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How much does the pipe curve?

 
Posted : May 22, 2017 7:51 pm
(@bill93)
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spledeus, post: 429535, member: 3579 wrote: How much does the pipe curve?

A very quick calculation (hope I'm not too far off) says that for a 12 mile arc at earth radius, the middle is 948 ft from a straight line between the ends. Anybody want to check that?

 
Posted : May 23, 2017 6:32 am
(@james-fleming)
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spledeus, post: 429535, member: 3579 wrote: How much does the pipe curve?

No curve...just 3,000 +/- 20' chords

 
Posted : May 23, 2017 6:39 am
(@peter-lothian)
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paden cash, post: 429492, member: 20 wrote: Here's an outfall line I had the pleasure (!?) of working on when planned and built in the early '70s. About 12 miles of an 18 and 24 inch line with an overall average grade of .0015. Then in the late '80s (completely different company) I had the pleasure of inspecting a rehab of the entire line AND a retrofit of the WWTP.

The only thing we never found in a MH (or the bar screen at the plant) was a human body. We did find one intact (but very dead) Shetland pony and what was left of a pool table. Bowling balls and kitchen chairs were common.

Just how big are the toilets in Oakieland? And what would motivate someone to flush such things in the first place?

 
Posted : May 24, 2017 5:27 am
(@paden-cash)
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Peter Lothian - MA ME, post: 429732, member: 4512 wrote: Just how big are the toilets in Oakieland? And what would motivate someone to flush such things in the first place?

Takes a pretty big toilet to get a pony down there!

The original MHs were masonry and the pipe was concrete. Sewer gases ate it all up. The pony fell in a collapsed MH and expired at the bottom. The route followed a creek through a rural area with a local "creek dump" almost every mile (Okies are junky folks by genetics). The pipe was eroded from the sewer gas and would collapse with its trench backfill washing away and leave a gaping hole. When the creek would swell with heavy rains the junk floating in the creek would get sucked into the main.

We never could figure out who was putting the bowling balls in there. The plant operator had a makeshift museum of everything interesting that had made it to the barscreen.

 
Posted : May 24, 2017 6:20 am
(@dougie)
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paden cash, post: 429744, member: 20 wrote: The plant operator had a makeshift museum of everything interesting....

He didn't keep the pony; did he?

:scream::8ball::skull:

 
Posted : May 24, 2017 9:54 am
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