Duck Hunting for puddlers like Mallards, Sprig (Pintails), Black ducks, Widgeons, Woodducks, Teal, and other ducks.
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O.k guys, I know in a lot of states this is illegal. However, I just received permission to build a wood board/plank dam on a small creek that runs through my property. All I need to finalize everything is some pics of dams like this to gain a permit. What I was thinking was to put some 4x4s on each side of the creek and run 2x6's across the creek to back the water up, in this already damp "swampy" area. If anyone has any pictures of this kind of dam please send them to. I would love to be able to have my own private duck swamp.
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If you have access to allow a concrete truck or have a way to mix your concrete on site, then you may want to consider using a flashboard riser concrete device to accept the wooden boards so as to adjust the height of the water you back up. Don't know how wide the creek is, but if you built a wooden form to pour the concrete into, you would have a substantial "dam" to drop the
riser boards into. I sketched out what I have used in the past. Just dig into the bank on each side and construct the form that would create the riser device. The sketch is not to scale but you would need to make sure the slots are a little wider than a 2" board so when it swells, you can still remove them. The concrete on either side of the slots should be around 4-6" thick. I advise getting the boards cut "tounge & groove" as "v" shaped to allow them to seal out the water better.
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Not knowing the exact lay of the land (width of the creek, slope of the bank, etc) I would dare say that setting 4x4 on either side with 2x6 spanning would not hold much water before it collapses...especially in a "damp swampy" area where the posts will have little ground support after being set. You would need to almost survey the area to get an idea of how much water will be held back at X height of the dam and realize that water exerts tremendous pressure on a dam even with a shallow area being flooded. You have to consider the volume of the entire area being dammed up and it doesn't take too large of an area to hold thousands upon thousands of gallons tht exert tons of pressure.
To do even a small dam of this type you would need fairly large timbers set very deep into the ground (if not driven to total resistance) and something more substantial than 2x6 as the face of the dam. Just look at a beaver dam ato see the amount of hard packed mud along with large logs as a base and you'll realize just how substantial of a structure is required to hold water back.
"Shoot low boys...they're riding shetland ponies in search of true grit" Lewis Grizzard
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