basically, you cannot do this by gravity (unless you could set up a siphon situation, which would be tricky to engineer/justify). even a siphon would probably not meet regulatory requirements.
pipe through the berm is the most common way, typically with a concrete structure within the pond to...
Thanks Bill for a great question, and thanks to Terry and Kevin for the great follow up! I've been at stormwater for a while and haven't quite grasped this subtlety 'till now. Having the documentary backup, along with engineering judgement and consideration of regulatory requirements is key :)
I remember one relatively small quake in Eureka, CA in the early '90's that really illustrated the P- and S- waves... (i was driving elsewhere in CA during the 'big' one in 1994, so didn't notice it at all when it happened).
I was doing the dishes in my apartment, and suddenly felt woosy (it...
If you have Civil3D https://knowledge.autodesk.com/support/autocad-civil-3d/getting-started/caas/CloudHelp/cloudhelp/2016/ENU/Civil3D-Tutorials/files/GUID-D12A9FB0-D176-4EF9-B779-043D03D626D7-htm.html
I don't believe vanilla autocad can do it.
In the one project that I've been involved with, the panels were ignored by the regulators - mainly because the total disturbance was less than the SPDES threshold, and overall runoff patterns weren't being changed.
I really appreciate seeing the MD guidance for future projects that will...
Hello,
I attempted to obtain the UL Listing Report for a specific product using the stamped number on the UL-142 label. UL replied that the files were withdrawn over 5 years ago and will not provide any further information. I understand that there are many reasons for files to be withdrawn, and...
If you haven't, ask the railroad - I assume you'll be needing their signoff of your design. They should be able to tell you all that applies. Having never done railroad infrastructure permitting/design, I'm not sure what else would be applicable, but I would check federal/state requirements...
that's correct - if subject to local/state/federal stormwater permitting, you'll need a PE for the final submission. i recommend finding out exactly what you're required to do first - you may not even have to perform any analyses.
p.s. rainbarrels or a cistern are also often acceptable...
