Posted: Tue Mar 27, 2007 6:49 pm
Hello,
I am living in Belgium where the drainage problems seem very similar to yours unfortunately! I have found this site very interesting and full of good ideas.
Sorry if I use other units than which you are familiar with...I will try to translate as much as possible though!
Now, my problem :
-down sloping garden below road level, a cut of it would give from left to right :
-road level, slope of 30% (steep!) for 5meters (15feets) then a slope of around 10% for 25 meters (75-80feets). then the slope decreases and there is a small woodhouse on concrete.
-the garden is 6-7 meters wide (about 20 feets)
-the soil is... yes : very heavy clay non- permeable.
No water coming from the road enters the garden as I took all precautions to avoid that but still rain does...and sometimes heavily, you know what I mean!
At the bottom of the high slope : soaked!
Close to the woodhouse : very very soaked!
The garden is still to be created and we would like to avoid grass and make it a series of pads (gravel-dolomie) and fountains. We would like to avoid to improve the soil and all that.
I was more thinking of digging a trench at the base of the high slope with findrain in it and gross gravel to intercept a max amount of water. This trench would be connected to another trench going on the side of the garden , garden has to be resurfaced to get a slope towards that trench, this trench going towards the lowest point (escape of water to a wood). Also, a lower trench in the same manner just before the woodhouse connected to the other trenches for escape of water.
What u think about that ?
How deep those trenches ?
What material in it ? Could we make those trenches as pads of gravel ?
Do I still need to put a perforated plastic hose at the bottom of the trenches ? If yes, why ?
Other ideas, suggestions, please ?
Thank you very much for helping a poor Belgian who is tired of having his feet wet !
Flyer
I am living in Belgium where the drainage problems seem very similar to yours unfortunately! I have found this site very interesting and full of good ideas.
Sorry if I use other units than which you are familiar with...I will try to translate as much as possible though!
Now, my problem :
-down sloping garden below road level, a cut of it would give from left to right :
-road level, slope of 30% (steep!) for 5meters (15feets) then a slope of around 10% for 25 meters (75-80feets). then the slope decreases and there is a small woodhouse on concrete.
-the garden is 6-7 meters wide (about 20 feets)
-the soil is... yes : very heavy clay non- permeable.
No water coming from the road enters the garden as I took all precautions to avoid that but still rain does...and sometimes heavily, you know what I mean!
At the bottom of the high slope : soaked!
Close to the woodhouse : very very soaked!
The garden is still to be created and we would like to avoid grass and make it a series of pads (gravel-dolomie) and fountains. We would like to avoid to improve the soil and all that.
I was more thinking of digging a trench at the base of the high slope with findrain in it and gross gravel to intercept a max amount of water. This trench would be connected to another trench going on the side of the garden , garden has to be resurfaced to get a slope towards that trench, this trench going towards the lowest point (escape of water to a wood). Also, a lower trench in the same manner just before the woodhouse connected to the other trenches for escape of water.
What u think about that ?
How deep those trenches ?
What material in it ? Could we make those trenches as pads of gravel ?
Do I still need to put a perforated plastic hose at the bottom of the trenches ? If yes, why ?
Other ideas, suggestions, please ?
Thank you very much for helping a poor Belgian who is tired of having his feet wet !
Flyer