521 55th Street
This is a good example of Oakland’s oldest water infrastructure. The Contra Costa Water Company was founded in 1866 by Anthony Chabot, a name you may recognize. It was Oakland’s largest water provider until its demise in 1907, when it merged with the Oakland Water Company to form the Peoples Water Company, marking the end of the city’s infamous water war.
This is the only piece of street hardware I’ve found that features the full name of the company. If you see any others, by all means post the location in a comment. These unsung bits of history grow scarcer every year.
This gate-pot on Emerald Street next to 41st Street appears to be another example. It’s hard to see in this shot, but the “CC” is followed by a dim “W Co”.


20 January 2025 at 8:31 pm
Added another example to the post today.