Water Walk, 4

Let's finish up our Water Walk with Bellis today, by continuing south along the path below Devil's Gate Dam. There are other wonders to behold, some not easy to see--100-year-old rusted pipes with rivets at their seams, stone walls embedded in the path--but this--what is this?

At last, it doesn't matter that I don't know because Bellis didn't know either, and apparently neither doesPasadena Water & Power.

To give you an idea of size, I'm 5'4" and I'm about as tall as the top of the graffiti on the west side of the tower. You can see a slim window at the top on the south side. It wouldn't be wide enough for an adult to fit through, though maybe a small child could do it.

On the east side of the tower, at the top, there's a sign:

I respect your superior web searching skills. Have at it. I found nothing.

Movie set?

Many thanks to Bellis for a fantastic tour, and to Pasadena Water and Power for the water, and the power.

Update: Here's a nice post on the Zanja walk Bellis took before she took me.

Tomorrow, Zen Monday!
Tuesday, news updates!
After that, I have no idea!

UPDATE: I spoke with Brad Bowman of Pasadena Water and Power, who told me this is a "surge tower." There's a pretty good explanation here. This tower is the "point of release."