Showing posts with label Peninsula Watershed. Show all posts
Showing posts with label Peninsula Watershed. Show all posts

Friday, January 25, 2019

Crystal Springs 10-Year Challenge

Many a brave person is participating in the #10yearchallenge these days. Posting a photo from 10 years ago and a current one side by side on your favorite social media platform.

We at the San Francisco Public Utilities Commission are not shy about how much we’ve changed in 10 years, and thought we’d join in on the fun with Lower Crystal Springs Dam and Reservoir.


May 2008


This photo was taken in 2008 and shows Lower Crystal Springs Dam on the left, Skyline Bridge on top, and Lower Crystal Springs Reservoir and the watershed in the distance.


January 2019 (Ok, technically a little over 10 years)


What a difference a decade makes! Taken in January 2019, this photo shows Lower Crystal Springs Dam and the new parapet wall constructed to allow for safer release of high flows over the Dam. The upgrades are clearly visible in the lighter concrete color. Also clearly visible is the recently-opened new Skyline Bridge.  

What is conspicuously absent? The power poles. The upgraded power lines were placed underneath the new bridge.

Otherwise, the environs around Crystal Springs Reservoir are not showing their age at all.

We are firm believers that some views get better with age….

Have a great weekend everyone!

Friday, August 18, 2017

Peninsula Watershed Photo Friday - Stone Dam

For this Photo Friday, we thought we’d highlight one of our lesser known dams in the Peninsula Crystal Springs Watershed – Stone Dam.





This small dam was built in 1871 approximately two miles away from Pilarcitos Dam (which was constructed in 1866).

Spring Valley Water Company constructed Stone Dam to take advantage of the lower Pilarcitos Creek Watershed. Water impounded at Stone Dam on San Mateo Creek impounds about 5 million gallons of water (in contrast to nearby Pilarcitos Reservoir which can store 1 billion gallons of water).


Happy Friday!