The water ouzel is a cheerful little bird who sings from rocks and branches in the middle of raging waterfalls in the Sierra, even in the storms of winter. John Muir's famous 1894 essay on the ouzel leaves me crying tears of joy every time I read it.
We don't have many water ouzels or waterfalls (or winters) in Berkeley, but whenever I pass one of these intersections with planters blocking traffic like moss-covered rocks in a waterfall, I imagine a water ouzel sitting singing on one of them. So this cache is the Berkeley Ouzel, happily waiting for you on its magnetic perch.
You don't need to enter the stream of traffic to find the cache -- just stick close to the rocks and watch for bikes.
[Congrats to Team Io-Honu for the FTF and to TSNS@44!]