Sewer Performance Criteria - Capacity
Sewer Performance Criteria - Capacity
(OP)
Most design standards for new construction of sewer pipelines are somethign like d/D of 0.5 for 15-inch pipe and greater.
But I'm interested in performance criteria of sewer pipelines that have been established for a while and perhaps are flowing at peak d/D of 0.85 but not surcharging. Just because it is above the design standard is not always justification for replacement.
Has anyone seen documented performance criteria for sewer pipelines (not design)?
Russ..
But I'm interested in performance criteria of sewer pipelines that have been established for a while and perhaps are flowing at peak d/D of 0.85 but not surcharging. Just because it is above the design standard is not always justification for replacement.
Has anyone seen documented performance criteria for sewer pipelines (not design)?
Russ..





RE: Sewer Performance Criteria - Capacity
good luck dealing with people who see problems where none exist,
also Russ
RE: Sewer Performance Criteria - Capacity
My point is/was what indicators are used by Districts to trigger upsizing of a pipeline due to capacity? The obvious one is surcharging (d/D > 1) I have heard that some districts do not conisder there to be a capacity problem until the manhole is surcharging at least 2-ft. Is this common?
Thanks..
RE: Sewer Performance Criteria - Capacity
Remember: The Chinese ideogram for “crisis” is comprised of the characters for “danger” and “opportunity.”
-Steve