riltri wrote: I found a landscaper who says he has extended several culverts. This should be the least expensive soluton. Thanks for all the suggestions!!
GOOD, that way your money is going to something you can keep using.
If you can extend the culvert down stream, use a larger whistle, very little digging needed. Just enough to get the larger tube around the smaller, and level the bottom of ditch for pipe. Concrete to keep fill from falling in then compact up to grade.
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