Above Ground Stormwater Piping
Above Ground Stormwater Piping
(OP)
Hello,
We are proposing 600' of fused HDPE (SDR 17) pipe that will be placed above ground for storm water conveyance. Due to ground conditions a bury is not possible. From the inlet we are looking at a initial 200' run of pipe at a 4% slope, with a slope of 11% to 15% in the remainder of the pipe. Pipe will be entirely gravity with no high spots in the pipeline. Does anyone see a reason that pipe could not flow full or even be surcharged? I have heard not having air in the pipe could cause issues and even possible damage to the pipe. I really don't see this as an issue.
We are proposing 600' of fused HDPE (SDR 17) pipe that will be placed above ground for storm water conveyance. Due to ground conditions a bury is not possible. From the inlet we are looking at a initial 200' run of pipe at a 4% slope, with a slope of 11% to 15% in the remainder of the pipe. Pipe will be entirely gravity with no high spots in the pipeline. Does anyone see a reason that pipe could not flow full or even be surcharged? I have heard not having air in the pipe could cause issues and even possible damage to the pipe. I really don't see this as an issue.





RE: Above Ground Stormwater Piping
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RE: Above Ground Stormwater Piping
RE: Above Ground Stormwater Piping
Your flow will be difficult to calculate as water flow increase and at times you could have a full pipe at the start but 2 phase flow as the slope increases. Could get some vibration and surging at the end but otherwise not an issue. Why not run two puppies in parallel for the initial 4% section?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Above Ground Stormwater Piping
Some questions:
a) Where in the world is this project located?
b) Why is it necessary to run the pipe above ground?
c) How do you intend to stabilize the pips in place?
d) How do you intend to protect the pipe from damage(people or nature related)?
Sometimes its possible to do all the right things and still get bad results
RE: Above Ground Stormwater Piping
RE: Above Ground Stormwater Piping
Technology is stealing American jobs. Stop H1-Bs for robots.
RE: Above Ground Stormwater Piping
"Pipe will be entirely gravity with no high spots in the pipeline."
A profile would help us here a lot.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Above Ground Stormwater Piping
Technology is stealing American jobs. Stop H1-Bs for robots.
RE: Above Ground Stormwater Piping
Is this a temporary application?
RE: Above Ground Stormwater Piping
That pipe will certainly move longitudinally due to temperature changes, expansion and contraction, particularly under sunny conditions, and when empty. And thus, it will probably tend to move around laterally too. Flowing water will at least tend to modulate the temps. and add some weight to the pipeline.
RE: Above Ground Stormwater Piping
RE: Above Ground Stormwater Piping
Technology is stealing American jobs. Stop H1-Bs for robots.
RE: Above Ground Stormwater Piping
If you size the pipe so that there is no backwater, cavitation should never occur.
RE: Above Ground Stormwater Piping