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#515659 - 01/12/20 10:35 AM Can a dam be large enough for trees to grow on it?
saint_abyssal Offline

Registered: 06/05/19
Posts: 36
Loc: WV
Trees are normally considered extremely risky to allow to grow on a dam because their roots can puncture leaks into it. However, is it possible that a dam could be thick enough for this to not be a major concern? If so, how thick would that have to be?

#515661 - 01/12/20 01:25 PM Re: Can a dam be large enough for trees to grow on it? [Re: saint_abyssal]
esshup Offline
Field Correspondent


Registered: 01/26/09
Posts: 24181
Loc: Grovertown, Indiana
I wouldn't take the chance, but since a trees root system can be as large as their crown, it'd have to be a BIG dam.

3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).

#515722 - 01/14/20 12:22 PM Re: Can a dam be large enough for trees to grow on it? [Re: saint_abyssal]
BrianL Online   content

Registered: 03/31/14
Posts: 864
Loc: Paris, TX
In real world dam construction, no.
1.8 acre pond with CNBG, RES, HSB, and LMB
Trophy Hunter feeder.

#515742 - 01/15/20 12:08 AM Re: Can a dam be large enough for trees to grow on it? [Re: saint_abyssal]
teehjaeh57 Offline
Chairman, Pond Boss Legacy award; Moderator; field correspondent

Registered: 01/22/08
Posts: 8284
Loc: Lincoln, NE
Cedars would probably be ok given their shallow root structure - but Id build the dam a little higher to accommodate the roots just in case. I would not consider any other tree on a dam that Im familiar with other than cedars.
Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

#515750 - 01/15/20 12:42 PM Re: Can a dam be large enough for trees to grow on it? [Re: saint_abyssal]
John Fitzgerald Offline

Registered: 10/27/15
Posts: 2248
Loc: S. end of Elkins, Arkansas
Trees will cause leaks. I had all the trees, including several trees up to probably 16 inches diameter taken off my first pond's dam in August 2015 when it was renovated. The guy must have failed to get all the roots out, because it leaked prior to renovation, and has leaked ever since.

Cedars might be OK, if the dam is tall enough to support the shallow root system above the water line, but cedars are messy, shedding branches and needles. Plus, they make fishing difficult.


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