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  1. ckissick

    Setback from bridge abutment to creek bank

    The ground beyond the creek banks is at one elevation, not two elevations, as you drew it. The abutments are buried on both sides, not retaining anything. The structural engineer is concerned that the soil between the abutments and the creek banks won't provide passive resistance because of...
  2. ckissick

    Setback from bridge abutment to creek bank

    There is a 10-foot deep, shotcrete lined creek with a pedestrian bridge being built over it. The banks are inclined at 1/2 to 1. The ground away from the banks is level. The bridge will use concrete abutments, 3 feet wide by 10 feet long, by 5 feet deep. The abutments will be about 10 feet...
  3. ckissick

    How to determine pier depths?

    I need to find out how deep some existing drilled piers are. The house addition was built without a permit, and there are no records related to the drilled piers. They are 18-inch diameter concrete piers with rebar, located along an exterior wall of the house. I could use a back hoe or...
  4. ckissick

    Lateral Loads on Piers due to Soil Creep

    When giving recommendations for a pier and grade beam foundation, what's a good way to account for lateral loads acting against the tops of piers and on grade beams due to soil creep on slopes? In my case, it is a 2:1 slope, stiff expansive clay, and I estimate the upper 3 feet is prone to...

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