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Dry Creek Bed Construction

Discussion in 'Landscape Maintenance' started by VO Landscape Design, Jun 22, 2009.

  1. VO Landscape Design

    VO Landscape Design LawnSite Senior Member
    Male, from Mt. Pleasant Ia.
    Messages: 365

    A client wants a dry creek bed in their yard. It starts out about 6' at the top and 10' at the end and 41' long. I know the basics of design but am having problems with the amount of rocks for it. With the different size on the bottom building up to larger on the top is there a easy way to figure out approx. how much of each? It will be about 12" deep at the deepest part.
    I am thinking Rock A (the smallest) at about 300 sq.ft. X 2" depth = 600sq.ft. Plus another 82sq.ft. X 10" depth = 820sq.ft.for the deepest part. Rock B (larger) at 208sq.ft. X 3" depth = 624sq.ft. Rock C (largest) at 129sq.ft. X 2" depth = 252sq.ft.
    I hope this is clearer than it sounds to me.
    Here is a picture of the area. The shaded area is where they would like it.
    Thank you

    creek drawing.jpg
  2. shade tree landscaping

    shade tree landscaping LawnSite Senior Member
    Messages: 915

    make sure to use large stone! If not after the first good rain storm the water and pitch of hill will have majority of rocks at bottom of the hill. Water from rain storm has more moving force that you would think.
  3. mdvaden

    mdvaden LawnSite Bronze Member
    Messages: 1,946

    I'm beginning to treat these now as drainage too - or horizontal cisterns.

    Digging more underneath, to contain a concealed drain pipe. Keeps the water from puddling.

    Did one once as a cistern / drywell. Dug it about as wide underneath, Two rows of pipe deep and about 8 rows of pipe wide. Covered with mesh, then rock.

    Worked so well, that water rarely seeped from the end. Was not on a real steep hill, but did have to take the water from a mid-size concrete driveway too.

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