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north central Iowa | Hi does any one have any ideas on back flow prevention for a 24 inch culvert fron a creek? Co had creek cleaned and installed culverts from field to creek which back flow into the field when creek is full. called culvert company and they want 400 bucks apiece to make gravity doors.............. seems a little steep to me just wondering if any one else has had any ideas that worked? Thanks!! | |
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culvert back flow prevention
