12-19-2014, 08:47 AM #1
SEPT. 14, 2014:
Ever notice a brick-lined circle embedded into a street intersection? Keep an eye out and you'll see them throughout San Francisco. As part of the San Francisco Fire Department's Auxiliary Water Supply System, these brick circles indicate a cistern full of water. Join SFFD's Chief Ken Lombardi and Firefighter Hashim Anderson as they discuss the history and function of these cisterns, and demonstrate the drafting procedures used to access the water.
In the simplest terms, the AWSS is a gravity flow system with the highest point being a ten million gallon reservoir atop Twin Peaks. The AWSS flows through two additional water tanks, the upper Asbury Tank, and the lower Jones Street Tank, on Jones Street at Washington. The systems special hydrants are on a grid system with gates so that various sections can be closed, if necessary, in case of water main breaks like those that happened in the 1989 Earthquake. At the lowest end of the system, two pumping stations were built near the waterfront in case it should become necessary to add more water into the system. Pumping Station No.1 is located on the south side of the City, at 698 2nd Street, which is now also Department Headquarters. The other, Pumping Station No. 2, this building, is on the north side of the City. Both pumping stations are an integral part of the system. In addition, intake manifolds were placed along the waterfront so that the two new fireboats could pump saltwater to the system.
Last edited by 1OLDTIMER; 12-21-2014 at 09:31 AM. Reason: Additional information"Take care of yourself first. Life is too short and you never know what tomorrow or for that matter...what the next few seconds is going to bring."
12-19-2014, 11:34 AM #2
- Join Date
- May 2013
Very interesting stuff. Had no idea something like this existed.
Thanks for posting it.
12-19-2014, 10:15 PM #3
- Join Date
- Jul 1999
- Rural Wisconsin, Retired from the burbs of Milwaukee
The village I live in had 3 cisterns in town for fire protection until 2 years after the water system and hydrants were put in. I tried to talk them out of taking them out of service and filling them in but I lost.Crazy, but that's how it goes
Millions of people living as foes
Maybe it's not too late
To learn how to love, and forget how to hate
12-23-2014, 05:14 PM #4
March 13, 2014:
AWS-used water supply used to fight San Francisco fire. (Forty-One photos)
"Firefighters battling the five-alarm Mission Bay blaze had to tap into San Francisco's rarely used emergency backup water supply when regular sources proved inadequate, officials said Wednesday."
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