Notice the long line of poles in this photo, about 15 feet tall with yellow bottoms? These line the bank of the Kusko in Bethel. Come to find out, these poles are filled with freon. They are there to keep frozen the permafrost mud river banks so that they don't collapse and wash out. That's what I call a proactive approach to erosion prevention.
Sunday, August 31, 2008
I thought this was interesting....
Notice the long line of poles in this photo, about 15 feet tall with yellow bottoms? These line the bank of the Kusko in Bethel. Come to find out, these poles are filled with freon. They are there to keep frozen the permafrost mud river banks so that they don't collapse and wash out. That's what I call a proactive approach to erosion prevention.
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1 comment:
i am learning how to post comments - so please forgive any duplications. what a great adventure for you - how about some pics of your students and classroom building??
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