| Click to Post a New Message!
Page [ 1 ] |
|
|
|
ditch retaining wall construction
I have 2 ditches running thru my property that converge into 1. Over the last 30 years they have eroded to a width of 30', from a begining 10'.The banks are about 8' tall.One is getting really close [10'] to my barn.What I propose to do is build a seawall on each side of the ditch to prevent any more erosion.My plan is to sink 4x4 posts on 4' centers,tie them back about 2' from the top,run 2x6 stringers [horiz.] behind them on 16"centers,then use 3/4" treated plywood for the actual wall with the plywood stood up verticaly. The plywood joints would be backed up on the inside with 1x6 [vert.].I will capit with 2x8.Ripstop tarps would be stapled into position on the ply. before backfilling, to prevent seepage.I think 4 &6 crushed limestone would be good against the inside,with a topping of dirt about 1' deep.I will use 1/2" rebar, 20' long for the tiebacks, drilling thru the 4x4,and bending the end over.At the other end, I will bend a 90 about 2' back,pointing up.Drop 2 cement blocks over this and bind the whole thing together with an 80# bag of concrete. Do I have a good plan, or am I missing something?
|
|
 Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
I should add that I am keeping the bottom 8' wide,which according to a 1980 survey, is 2' wider than it was then.Fall of the bottom will not be altered.I have already built 2 bridges to faciliate crossing,useing 3 - 6"w x 8"t steel beams on 3' centers.I decked these with 2x12 treated to a width of 8',with double 2x12 running parallel to the beams where my tractor wheels will run. The retaining walls wil run along the bank where the bridges are,thus decreasing the actual span to 10' at those points.The total length of the walls will be about 80' on each side.I will angle them away from the stream bed at the ends to maintain a directional flow.These areas will be rip-rapped with large stone as well.
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
Good point about the plastic.I guess that part of the plan is gone! I actually have about 1200' to do, and I was going to use the stone thing on most of it.The PT isnt a problem,Ive had it shoring my bridge anchors for a while now.Tile is not an option,I wish it was,but we get so much trash floating down this thing when it rains that we'd have a dam in short order.It will go from 6" deep to 7' deep in 20 minutes when it rains hard,thats why it eroded out over the last 20 odd years. When we built the house in 1972,it was a stream,now it drains acres of parking lot 2 miles upstream.
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
Without getting int a very lengthly story,all the above has happened,lawsuits,holding ponds,county engineers,epa,whatevr.The bottom line was that my attornies dug up some ancient documents that show that the drainage that crossesour property was never turned over to thecounty or state,hence it never became public domain.There are only about 15 miles of drainage in our state that are that way,our 1/2 mi. is part of it.As a result, the county or state has no say as to what we do,so long as we do not restrict the flow to less than what the base survey shows in 1983 as a cross section when we filed the original suit.I have letters and documents to this effect,in one of them the county engineer states "you may do as you see fit with it" .All of this is still legal precident, and even though its 20 yrs old, is binding.
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
We were here first,and the thing that you are discribing is just what happened.Difference is,immediatly downstream of us is a county park that they built a dam in and created a pond.This is one thing that slows down the drainage now.Upstream of us, the two property owners were dupped into letting the county "channelize" there property back 20 yrs ago when this all started.By the time that I found out that we [in effect] own the drainage, it was too late for them and now they have an even bigger sewer than I do,But since we now know who "owns" it, the county has washed its hands of the whole thing, and told us its our situation.I dont really care what they do, because when I wanted to fight the development in 1983 no one was interested, so all the legal expense went on me.At this point in time, and at my age, Im just going to do what I was told I could do and basically to hell with everyone else.I got several estimates to fix this drainage on my property from $40k to $60k.This is out of the question, so we just bought the equipment and are doing it.I wanted the equipment anyway to play with up north at the other property, so I took advantage of the situation,or so my wife says!
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
murf, Thats sheetpile. Ive got 400' of it along the river at our marina. It was really expensive when it was done [1975]$200/ft., and now is about $1000/ft.Thats a real permanent solution, but as was stated, not very pretty in a residential setting.Im in a situation where what ever I do only has to look good for 15yrs topps,and by then I wont worry about it anyway,my kid can!
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
the concrete slabs are a real good idea. How much does concrete weigh per yard ?
That would be a lot easier and maybe cheaper,not to mention permanent.
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
now you got me going! I could even make a plank design on the face of the slabs,color the concrete ,and put wire rope loops on the backside for tiebacks !If I put my 4x4 posts behind them to stabilize while backfilling,I could even cap it all with wood to make the wife happy !
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
Thanks ! I'm going to do some serious research on this.
|
|
Add Photo
Bookmarks: |
|
| |
|
ditch retaining wall construction
Exelent information ! how long will the steel sideing last ? Why cedar posts instead of treated 4x4? On the subject of steel against treated wood, Ive always been told not to do it since the metals in the treatment cause accelerated corrosion where the wood contacts the steel.
|
|
Add Photo
Bookmarks: |
|
| |
|
Page [ 1 ] | Thread 84213 Filter by Poster:
3 | 2 | 1 | 2 | 1 | 4 | 1 | 10 | 1 |
|
()
Picture of the Day
DennisCTB
Unanswered Questions
Active Subjects
Hot Topics
Featured Suppliers
|
Gas Generator Weather Protecti
04-25-2004, 12:53 
Digg It 
Del.icio.us