Friday, March 17, 2017

Pond Dredging on Hole #5

The upper end of the pond on #5 has been slowly filling with sediment from silt contamination that has washed down the stream and into our pond.  This is a slow process but it has really come to the surface in the last number of years.  The pictures below illustrate the problem and what we did to remove the silt.


Pictures from 2014

Even a small stream like this can carry tons of silt.

A closer view of the silt washing in after a rainstorm.

Cumulative effects in our miniature "Delta" region. 

Look at the silt flowing out.

Over the next couple years this area becomes very shallow.



Pictures from 2017

The pond has been drained to start the project.

This end had become completely contaminated and was no longer part of the pond.

A view of the rest of the pond.

The muddy work has begun.


The excavator is sitting on a platform to keep from sinking.
He moved these platform sections all around the pond to do the work.

Concrete was placed in many sections of the spillway to reinforce.

Getting close to finishing.

Deep in the mud,.

Pits were dug to hold the silt and let it dry.  Once these pits dry out they will be covered up.

A look a the new upper section of the pond.

Loading up the platforms at the end of the job.

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