Saturday, November 16, 2013

The Cost of Building in the Flood Plain

Irrigation company tries to put Left Hand Creek back in the channel it occupied before the September floods.
News Link

Looking at the photos of repair work on the channel and flood plain, you can see that the ground is all gravel deposits. That means that the channel has moved every time there has been a significant flood which deposits thick layers of rocks and debris. In the long run, constructing a flood control dam upstream or cleaning out the channel every time there is a flood will be the cost of trying to keep natural erosion from doing what it always has.

A good flyover video of the highway erosion damage and mudslides at the bottom.

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