Catch Basin Downspout/Liner/Insert
Catch Basin Downspout/Liner/Insert
(OP)
One of the Towns where we do work is requiring that all catch basins be constructed with a "polyethylene liner downspout". Of course they want me to provide a detail on my plans. Does anyone know what these are called, who makes them, or where I can get my hands on a detail?
Ed
Ed





RE: Catch Basin Downspout/Liner/Insert
RE: Catch Basin Downspout/Liner/Insert
I know there are devices that fit under the grate and catch sediment, but I don't think that's what they are refering to.
RE: Catch Basin Downspout/Liner/Insert
Brian
RE: Catch Basin Downspout/Liner/Insert
Or you could try to use the HDPE adjusting rings.
RE: Catch Basin Downspout/Liner/Insert
Now let me get this straight. You are required by a town to provide a detail for a device that they require and do not know what it should look like. You may have a misunderstanding of what they are saying to you. First ask them if they have a sample drawing of a previous project so you can get an idea!!! of what they are requiring. If they say they can not give you that detail, request the engineers firm and name and contact them. Any good engineering firm, out of professional courstey will help you out.
RE: Catch Basin Downspout/Liner/Insert
However, being an old construction engineer, I was looking for a manufactured solution rather than leaving it up to the Contractor to fabricate each and every one. To date, however, I have found no one who makes such an item.
RE: Catch Basin Downspout/Liner/Insert
There are a number of vendors. I've included a link that has some of the devices, check out StreamGuard and AquaGuard. Also, there is something called Snout on this page that might also match the description of what you are looking for. In any case, make sure you understand the potential debris/sediment loading so that you don't create maintenance headaches. Source control measures should be developed since removing gunk from stormwater is never completely effective, and good source control can reduce the amount of maintenance required for storm conveyances. Good luck!
http://www.epa.gov/region1/steward/ceitts/stormwater/techs.html
RE: Catch Basin Downspout/Liner/Insert
I am wondering if the liner is more for the elimination of ice at the inlet throat rather than salt protection.
RE: Catch Basin Downspout/Liner/Insert
RE: Catch Basin Downspout/Liner/Insert
Hope this helps someone else in the future.
RE: Catch Basin Downspout/Liner/Insert
I'm helping a friend with an oddball residential drainage issue and I haven't done this in detail for many years. In trying to implement the spirit of the DOE stormwater requirements for bioswales, I'm having trouble coming up with a Water Quality Design Flow without doing way more work than the project requires (no detention, no routing). We did a gross rational method approach to oversize the pipes (25 year design), but don't want the swale to be so big. Is there a "rule of thumb" for obtaining the WQ Design Flow from the isopluvials and trib area? We're away from King County, in the North Sound area. If you want to respond away from this thread that's fine. My yahoo.com handle is the same as this board. Thanks.
rd78
RE: Catch Basin Downspout/Liner/Insert