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My Back 40 Drainage Situation

It's not my water to begin with!

 
the situation
many moons ago the 3 homes to the east of me sold their back lots (prolly about 3 acres combined) to build a zero lot line neighborhood called clanlo. now while i'm sure that it is a lovely establishment with friendly people, i've got a major gripe with the place - below is that gripes saga.
 
now as many of you may already know, in february of 2K2 i put in 145 holly bushes in an effort to clean up and secure the back yard.
 
for the most part, it has been a tremendous success. only 1 of the 145 has croaked while the remaining 144 have grown over a foot each. eventually these guys will reach 15 feet tall each and form one continuous prickly hedge... much better than a fence.
 
all was going pretty well until we started having some pretty large storms last fall. i would come out after a storm only to find that all my $mulch$ had washed away and the root balls of all my newly planted bushes were exposed - not cool at all.
 
 
the problem
after unsuccessfully fighting the problem with more mulch, i decided to do a little investigating one night during a heavy rain storm. what i found was frightening! armed with a rain coat and a 2,000,000 candlepower Q-beam (come on, @ what point do we quit comparing flashlights with some silly candle ratio anyway) i went out in the rain to find a flowing river of water headed towards the NW most corner of my lot. The depth at the basin of this river was over 2 feet! i knew right then that something funny was going on - there was no way all this was my water. further investigation by the staff @ richardvining.com would prove me right.
 
to the left is an aerial view of our block. while my lot is outlined with a white box, clanlo is outlined in red. in clanlo, the entire 3 acres was built up and leveled in such a way so that 1/2 the water goes east and 1/2 runs off to the west.
 
while there are storm drains in the street, the vast majority of the water that lands onto the roofs of the 7 houses on the west side of the neighborhood is collected in gutters that deposit the water into a system of underground pipes that are aimed right @ my fence line. in some cases, holes had been cut in the chain link as so to allow for total free flow. once again...not cool!
 
it is highly suspected that this is where my "river" comes from - not my own natural runoff. in addition, all the water that lands on the driveways of houses 1,4,5,7 (the western border of clanlo) also filters over to my yard.
 
the preliminary solution
since this discovery, i've made several minor attempts to curb this problem (one of which involved great-stuff foam and those strategically aimed drain pipes) but none of these measures worked - the water just continued to find ways to sweep across my lot. however, it wasn't until i had some bushes die from having all their roots exposed by the runoff that i decided to take all this a little more seriously. if the water was not stopped soon, more bush deaths were sure to follow. it was time to get serious, and serious came in the way of a 300 foot long wood dam.
 
the "ok, now i'm serious" solution
after losing $240 dollars in bushes to this problem (4 x $ 60) and dropping another $400 or so in mulch, spending $200 dollars at the depot on wood, stakes and silt fences seemed like a bargain. besides, there is a certain satisfaction that comes with sticking to the official 1572 mantra - "you have to spend money to save money"
 
materials
18 - 16'x12" pressure treated boards
20 - 1"x4" boards for stakes
3 - 100' silt fences
10 lbs of screws
 
as you can see, if my yard had been any longer i would have had to rent a truck. as it was, this stuff just about had the rear wheels stuffed into the fenders. seeing how i have a 6 foot bed and a 2 foot tailgate (8 feet total) i basically had a teetet-totter thing going with those 16 foot long boards. fortunately, the fork lift guy at the depot helped me tie things down. to be sure he added some weight to the top to create what the called a "mathematical advantage".
 
now while i'm just a guy with too much time and a web page, i think he may have meant "mechanical". either way, he was driving a forklift... so i didn't argue.
 
one of the really cool things about this project was that i got to drive my truck around in the back yard. i can't really explain why that was cool, but if you are a guy... you get what i mean. driving around in a yard is usually an activity reserved for "moving day" when your trying to get as close to the front door as possible.
 
anyway, the first thing i did was spread all the 16 foot long boards out along bush line.
 
doing this really gave the project some scale. at one point i thought to myself "hmmm, this might take all afternoon".
 
3 days later... this is what i had. the hope was that the water would come thru the neighboring chain link, hit the boards, then proceed north. about one inch of each board is in a trench to help create a seal, so by my math that give me about 11 inches of added flood protection.
 
about a week or so later my creation faced its first test. a rather heavy rainstorm came to town at around 11 pm so i put on my boots, grabbed
my Q-Beam and trudged out to  

take a look. results were less than positive. <insert fuming anger here>

 
what appeared to be going on was that water was hitting the dam and just collecting there. the "northerly flow" that i had counted on was not happening. as a result, after enough rain fell the water would just spill over the 11 inch dam. basically all i had created was a flood delay system. i tried to convince myself that the system was somewhat a success by saying "at least the thing doesn't leak", but even that proved false over time. you see, after the rain quit falling there would be this 11 inch deep non flowing river just sitting there. eventually that water slowly seeped its way into my yard anyway. while this did decrease the speed of the water flow to the point where it no longer washes away all the $mulch$, that was no longer the point of this exercise. i wanted total victory.
 
not knowing how to get my hand on 300 feet of those highway dividers, i decided to give this project (and my blood pressure) a rest. during this interim some inspiration came in the form of Summer Storm 2K3.
 
when the storm hit, my next door neighbor (no, not the ones from the clanlo side) lost a tree that had a lot of monkey grass under it. a decision was made to grind up the stump and just put in grass instead. that meant that all that monkey grass had to be dug up and disposed of.
 
this is when rex (the lead landscaper dude) suggested that we "re-purpose" the monkey grass to behind my dam. his idea was to build what would equivocate into a 14 inch tall living levee that would only grow stronger with time as the root system took off.
 
action photo of boards, grass and silt fence
 
accompanied by one of those "construction site style" silt fences installed on the inside of the boards, i had a feeling that this idea had to work... and it has with one exception. we only had enough monkey grass for about 200 feet. therefore we are about 4 pickup truck loads short. right now the 2/3rds of the levee that exists does an amazing job of funneling all the water to the 1/3 that is sans-monkey grass. the result is a compounded water flow what would have made the lifeguard at the Adventure River Wave Pool nervous; so i need your help.
 
call to action
if you happen to have any dirt, bermuda or monkey grass please give me a call. i desperately want to finish this project before the spring rain starts to hit. i'll handle all the pickup and delivery, or if you prefer... i'll even let you deliver it so that you can drive in my yard. thanks for reading, i'll keep you posted as to when this year long project is complete.
 

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