I am a new member of this group. Rochelle Bartolomei suggested I post my problem here. A client of mine has runoff from aprox. 825 sf of roof dumping through 1...
Hi. I am a new member to this group. I was wondering if anyone knew if you need to use a gravel bed and a sand bed when I am not using an underdrain pipe in...
Hi. I am a new member to this group and have a design question for all of you rain garden experts out there. I am designing a rain garden that is capturing...
The best suggestion I can offer all of you with questions about drainage and filtration of rain gardens is to contact a local soil scientist with USDA-NRCS....
Hi Lauren - I believe the short answer to your specific question is 'no'. If all you want to do is infiltrate water, you could use an infiltration trench...
Hi Everyone, I'm from the Center for Watershed Protection and am new to the group. I'm currently working on a manual for establishing a monitoring program for...
Rick was caught saying: We can discuss why you would dig a 2' - 4' deep trench and fill it with planting media rather than simply dig a 6" deep depression and...
Awhile back, I promised you links to a couple of Urban Land articles that were originally stimulated by my participation in the Gentilly Charrette in New...
Does anyone on the list have experience designing bioretention swales, rain gardens, etc in New Orleans? At first I thought that since much of it is below sea...
"Soil conditions in much of southern Louisiana are such that significant subsidence and compaction of soils occur when water is removed from the soil or weight...
That paragraph sounds like it is pertaining to building on the soil--the soil caves in and gets too compacted. A rain garden does the opposite. It holds the...
Nice article to send out to homeowners and others and some good resources http://www.naturalhomemagazine.com/article/2007/03/singing-in-the-runoff.html...
Hi, this is my first time using this resource, my name is Keith. the slick_whipper is a previous account i had....long story. Anyhow... I have a design for a...
How are your erosion control efforts going? We are trying to push fo more efforts "upland" to get infiltration and less run-off BEFORE it gets to these...
I have seen filter fabric cause lots of problems under bioretention and pervious pavement applications-I would DEFINITELY NOT use it. In my experience, the pea...
You don't NEED filter fabric. But what will eventually happen without it is the dirt and soil washed into the basin will fill it up in a few years. How may...
Just curious about the nature of the problems caused by filter fabric. The fabric, over time, clogs with sediment? then what? Other issues? Thanks for sharing...
I am working on bioretention unit with an under drain and wanted to know if there a specific type of filter fabric that should be specified to separate the...
What are the disadvantages of NOT installing a grass filter strip around the perimeter of a bioretention cell? Is it feasible not to install a grass filter...
Note: There is a typo in the previous message. I said: "The filter materals should be relatively uniform in size - i.e., d-90/d-10 ¡Ý 3 to 4" it should...
There have been several posts lately regarding pea gravel and fabric filter layers for a variety of uses. The design of bioretention units initially included...
Keith - The grass filter strip is used to remove fine sediments before runoff enters the bioretention unit. There are lots of examples of bioretention units...
All - Sorry again. I wasn't aware that the Yahoo message board didn't allow the use of Unicode symbols. In the above message, the text with the capital U with...
Hello all, Some time back I posed a question, which was written poorly and unclear. Sorry for that. Here is my second attempt: I have been referencing a...
If you do not want the water to get into the subbase of the pavement - you would probably want to more the gravel area further from the pavement and have a ...
I am looking for some references on recommandations and not resolved issues for the utilisation of bioretention in cold climates. I am a new member from...
Hi Maria - As a start, you may want to try: 1) http://www.diva-portal.org/ntnu/abstract.xsql?dbid=1472 A doctoral thesis you can download titled: "Bioretention...
Greetings all. I've built a large rain garden to handle the outflow of 3 downspouts. The garden is on a slope, so I put in a series of berms and swales on...
The (fairly) new Minnesota Stormwater Manual has much info on cold climate issues: http://www.pca.state.mn.us/water/stormwater/stormwater-manual.html Jesse ...
