In yesterday's comments the Altadena Hiker reminded us of the high waters behind the Devil's Gate Dam after a storm in spring of 2005. Greg Sweet wrote of the debris that builds up behind our local dams after big storms. That gave me the idea to post these pictures from spring of 2008 to show what Pasadena Water and Power does with storm debris behind Devil's Gate Dam.
In the first two photos you can see JPL in the background. I didn't know what the line of connected logs was for at first.
But as the water recedes it becomes clear that the logs are in place to corral the debris that has gathered in the flood.
A lot of the debris is twigs and logs. But if you enlarge this photo you can also see plastic bags, styrofoam cups, a flashlight and a lot of unidentifiable stuff. If the water gets high enough, plastic bags and all sorts of weird junk hangs in the trees.
Sprocket and Boz find it absolutely delightful.
I'd say the PWP does a fine job. But I have no idea where they put it all.