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How to figure backfill?

Discussion in 'Heavy Equipment & Pavement' started by icex, Mar 23, 2011.

  1. icex

    icex LawnSite Senior Member
    from WV
    Messages: 389

    I have a project I need help figuring how much 4-6 inch rock I need to backfill. The project is a 225 feet long x 25 feet tall creek bank stabilization project. I am going to leave 6 inches of space behind the gabion baskets to backfill with 4-6 inch rock. How do I go about figuring how much rock I need? Thanks
  2. icex

    icex LawnSite Senior Member
    from WV
    Messages: 389

    Also, I could use a suggestion on stacking these this high. My last project bid was only 6ft tall, this is more or less 25-30ft (havent measured height yet.) I'm thinking 2-3 rows for stacking. Has anyone done a gabion basket wall this high before? Any suggestions? Thanks
  3. lblmike

    lblmike LawnSite Member
    Messages: 45

    for liability issues I would recommend you consult an engineer.
  4. 1idejim

    1idejim LawnSite Fanatic
    Messages: 11,318

    length times width, times depth in inches, times .0031 will give you net cyds.

    i got a hair under 105 cyds
  5. icex

    icex LawnSite Senior Member
    from WV
    Messages: 389

    Hey I already got it. It came out to 1500 tons of rock total because the bank was 36 feet. The problem is, its for a lawyer and she only wants to spend a couple hundred bucks on it. She don't understand gabion baskets are expensive. Once I told her the price she bitched and cried so this project is probaly a no go.

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