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  1. #1
    Gold Member
    Join Date
    Feb 2005
    Posts
    341
    Location
    Chester County, SE PA
    Tractor
    Kubota L5030 HST

    Default 1/2 round culvert question

    I am going to replace a 42" metal culvert in my creek. The previous owner installed it poorly and it blew out a while ago. I don't feel like dealing with bridges or culverts for this crossing and will be replacing it with a low water crossing using concrete mats. I have access to cheap ones - free.

    There is also a small feeder creek close by which I was thinking of using a culvert to make another crossing. The feeder creek is fed by a nearby spring and never flows heavy even after heavy rains. The 42" culvert is way too big to use for this spot but what if I was to cut it in 1/2 and pack dirt on top to create a crossing? I know that sufficiently packed round culverts can take a heavy load. What about a half round culvert with no bottom and packed with dirt the same way?
    Kubota L5030HST, LA853 FEL w/ HD bucket, BH90 backhoe, Bush Hog 286, WR Long Grapple

  2. #2
    Banned shvl73's Avatar
    Join Date
    Nov 2003
    Posts
    2,552
    Location
    NH
    Tractor
    Mahindra 2810HST

    Default Re: 1/2 round culvert question

    You've got my interest. I have a 24" plastic culvert that I'd like to do the same thing with. It'll be good to hear from anyone who has done this.

  3. #3
    Platinum Member TNhobbyfarmer's Avatar
    Join Date
    Dec 2004
    Posts
    758
    Location
    Middle Tennessee
    Tractor
    Kubota 3430 4WD

    Default Re: 1/2 round culvert question

    You might want to read a thread I strated recently called "Creek Culvert Project."

  4. #4
    Super Star Member EddieWalker's Avatar
    Join Date
    May 2003
    Posts
    14,899
    Location
    Tyler, Texas
    Tractor
    Several, all used and abused.

    Default Re: 1/2 round culvert question

    If you cut the culvert in half, the bottom will sink and move on you. A culvert works off the simple principle of spreading the load all around it. Without a bottome, it will sink and probably colapse on you.

    If it's too tall for your needs, a culvert that size in decent condition is worth a fair amount of money. Easily enough to pay for one half the size that you need.

    How are you going to dig out the culvert? Do you have a backhoe?

    Whatever you use to dig it out, use the same thing to dig down into the creek where you want to put the culvert. It will work fine if it's set into the creek and half fills up with silt.

    Eddie

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