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  1. #1
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    how do you make a wood/ladder bridge berm

    i am gunna build a north shore trail, but i cant figure out how to buil a wood berm
    any advice
    "Wars come and go, but my soldiers stay eternal"
    ~Tupac

  2. #2
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    Reputation: Walt Dizzy's Avatar
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    Some basics


  3. #3
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    thhat shows u how to make a ladder bridge but not a berm
    "Wars come and go, but my soldiers stay eternal"
    ~Tupac

  4. #4
    Builder of Trails
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    Here's little info but not a complete explanation. Use the picture below for reference. It's not a curved wall, though, but one from a slight angle to a drop.

    Start with good wood first. If you use scrap, find the best you can.

    Use at least 4"X6" for your vertical supports. Bury these at least four feet in the ground.

    Use 2"X8" at a minimum for horizontal support and angle braces.

    Use 2"X6" for decking.



    Here's a different wall. That's jay Hoots riding it.



    Another angle



    I hope this helps.

    D

  5. #5
    Builder of Trails
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    Also check out the North Shore Mountain Bike Association here and here, though the latter one is not as good.

    D

  6. #6
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    Reputation: redriderbb's Avatar
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    Hey Dwayne, those are wallrides.

    Building a NS berm is about as complex as it gets. Make your berms out of dirt, then once you have mastered regular ladder bridges you can start building stuff with complex curves.

    Check out some of the stuff at Tamarack Idaho if you can make it onto the mountain.

    Ben
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  7. #7
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    Reputation: Jisch's Avatar
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    I have nothing to add, but am likewise looking for a picture of the rear side of a wooden banked corner - I'm going to build a pump track in my yard, I have lumber and not much dirt. I was thinking I could find something from Raysmtb, but I can't see the structure in any of the pictures.

    John
    Big Strings, Big Wheels, The Jisch Blog

  8. #8
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    Reputation: smilycook's Avatar
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    Quote Originally Posted by dburatti
    Here's little info but not a complete explanation. Use the picture below for reference. It's not a curved wall, though, but one from a slight angle to a drop.

    Start with good wood first. If you use scrap, find the best you can.

    Use at least 4"X6" for your vertical supports. Bury these at least four feet in the ground.

    Use 2"X8" at a minimum for horizontal support and angle braces.

    Use 2"X6" for decking.

    D
    Do you use redwood and pressure treated.
    Live to ride!

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  9. #9
    Builder of Trails
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    If I remember correctly, pine was used, and, yeah, it was definitely treated.

    The area was overrun with the mountain pine beetle which was destroying the forests. Logging was rampant to stay ahead of the bug, and the lumber was readily available.

    D

  10. #10
    mtnjam
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    Chris, one of these would be really nice at the velopark. I know it's a lot of lumber, but...if somehow we got the blessing of a lumber company or someone up in valley county with a small sawmill to donate lumber. I don't know of any small lumber companies up there, but I'll post an ad in CL and ask at least

    I'm gonna be outta town this weekend or else I'd help build again at the park

  11. #11
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    Quote Originally Posted by ryman

    Chris, one of these would be really nice at the velopark. I know it's a lot of lumber, but...if somehow we got the blessing of a lumber company or someone up in valley county with a small sawmill to donate lumber. I don't know of any small lumber companies up there, but I'll post an ad in CL and ask at least

    I'm gonna be outta town this weekend or else I'd help build again at the park
    I would love to build a wall ride like that we just need the money or the timber. Hopefully we will raise a lot of money at Trailapoolza!
    Live to ride!

    Cannondale Jekyll Carbon 1
    Cannondale Trigger Carbon 2
    Transition Bottle Rocket
    Niner MCR 29er Hardtail

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