cost per foot to dig a trench

Discussion in 'Irrigation' started by jrumbaug, Aug 2, 2008.

  1. LEARY's LAW.........
     
  2. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

    They left out a soil type. Solid rock.

    What would you have to say about a 22" wide ditch for one 1 1/4" pipe? :D Cleveland Model 110 modified for S. Florida use digging at 100 ft per hour 24" deep and 22" wide. :weightlifter:
     
  3. Waterit

    Waterit LawnSite Silver Member
    Posts: 2,888

    Sounds like a Tim Allen machine.

    Limestone the rock you referring to?
     
  4. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    How true. If forced to "stack", at least separate the pipes with some scrap PVC whenever possible.
     
  5. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    I assume your in jest, but if not, parent material is not a soil and therefore not included in the soil textural triangle.
     
  6. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

    To create soil here, you first must break up the rock. When you get it broken up, you have large rock, small rock, a little bit of clay, and a whole batch of calcium carbonate. The clay comes from pockets in the rock but overall amounts to less than 1% of the soil make up. Think about living on a coral atoll. That's what it is like here. Coral rock is 1/5th porus so it only takes a D-8 with carbide teeth on a plow 24" wide to break up the top 6".
     
  7. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    For your reference.

    Keys to Soil Taxonomy, Tenth Edition (2006)
     
  8. HooKooDooKu

    HooKooDooKu LawnSite Member
    Posts: 70

    Now machine digging is a whole nother issue. When your digging 24" deep and moving at 100 ft per hour... your allowed a little leeway is the width of your trench.
     
  9. HooKooDooKu

    HooKooDooKu LawnSite Member
    Posts: 70

    Yes, I'm taking a calculated risk. But as a home owner on a DIY job, digging was a major task (wanted to minimize that).

    This was lateral lines, Sch 40 PVC, all joints carefully glued/welded, city water at 70 PSI, screened back-fill, 12" depth minimum in the deep south.

    I figure the only way one of these pipes is going to break is extreme soil shift or root infiltration (so yes, I'm gambling that here were no major manufacture defects). I tried to line the trench with vinyl siding when ever the trench went near a tree (should at least keep root out of getting between pipes).
     
  10. Waterit

    Waterit LawnSite Silver Member
    Posts: 2,888

    And y'all talk bad about Florida irrigators?
     

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