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Joined: Aug 2014
Posts: 4
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OP
Joined: Aug 2014
Posts: 4 |
I have a pond that breached the dam before I owned the property. Apparently, the last dam lasted for quite a while, about 20 to 30 years. It was simply compacted dirt with a culvert stuck through it at about the 4’ high. It appears water started leaking around the entryway to the culvert and eventually washed out the dam over a couple of years.
I need to repair the dam so I can collect water in the pond, attract waterfowl, and use it elsewhere by pumping it for irrigation or to fill other small isolated ponds.
The dimensions of the breached area are:
23 feet long channel
12 feet wide at top of channel
5 feet wide at bottom of channel
9-1/2 feet deep
If I put a spillway wall in it would be about 20 feet wide at the front, curved towards the oncoming water pressure. It would be a single wall of CMU w/reinforced concrete poured from top to bottom in the voids. It would also have 3 support ribs of CMU wall supporting it w/reinforced concrete poured from the top down as well.
The rear spillway would be about 10 feet wide, curved away from oncoming water, supported behind it with 3 rows of CMU, w/reinforced concrete poured from the top-down as well.
My sketch of the fix is larger than 2mb so I can't post it. Email me if you are interested in helping and I'll show you the plan as well as a couple of photos of dam and pond.
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Joined: Sep 2009
Posts: 3,544
Hall of Fame Lunker
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Hall of Fame Lunker
Joined: Sep 2009
Posts: 3,544 |
Recorring it and packing it with good clay would probably be better than concrete..
I believe in catch and release. I catch then release to the grease.. BG. CSBG. LMB. HSB. RES. ![[Linked Image from i90.photobucket.com]](http://i90.photobucket.com/albums/k247/jmilczski/Fish/PBSubscribe.gif)
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Joined: Jan 2006
Posts: 16,055 Likes: 277
Moderator Lunker
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Moderator Lunker
Joined: Jan 2006
Posts: 16,055 Likes: 277 |
Agreed. The new material should be knitted in with new soils. Concrete doesn't knit or mix very well.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
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Joined: Jun 2007
Posts: 7,099 Likes: 23
Ambassador Field Correspondent Hall of Fame  Lunker
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Ambassador Field Correspondent Hall of Fame Lunker
Joined: Jun 2007
Posts: 7,099 Likes: 23 |
Welcome to the forum ylekyote!
The concrete sounds expensive, and a bit extreme and as other's mentioned, it is not tied into the dam anywhere.
A breech can be safely repaired using a track hoe/loader and a very experienced operator that can stitch the new material into the old and compact thoroughly in small lifts.
You might want to consider installing a siphon drain system rather than just an overflow pipe if you are wanting to reclaim the pond for waterfowl. A siphon will give you much more pool level control.
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