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We worked with the Anacostia Watershed Society to construct a streambank revetment. Basically, it was a bank stabilization
project to prevent further erosion and to encourage proper filtration of the water. (The Anacostia River is extremely
polluted, and there is a huge attempt to clean it up).
First, we sorted through a huge mountain of old, donated Christmas trees in order to obtain the ones most suited for
the bank. Then we twined them so that they were more compact and easier to work with (below).
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| Twining the Christmas trees |
The twined Christmas trees were then placed into a matrix on the streambanks (below). We pulled them under wires
with a nifty tool called a "come-along" (which inspired another one of Holly's original songs).
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| Constructing the matrix of Christmas trees |
After the trees were in place, compost was shoveled on top (below).
Below, we have the finished product. Woo-hoo! The Christmas trees will encourage deposits of sediment that will
build up the bank. The prevention of erosion will lead to a healthy, flowing river, which will speed the cleaning process.
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