Both the main creek and its Rockridge Branch start in the Oakland Hills around the Rock Ridge outcroppings.

It surfaces briefly near 38th Street and Manila Avenue before continuing under Mosswood Park and eventually joining the main creek near Lake Merritt.

A woman lay in front of the bulldozers, stopping them, and she was then able to garner support from neighborhood groups to successfully oppose the project.

The section of creek was stabilized and restored, and replanted with native riparian plants and redwood, maple, and alder trees.

[3] In 2015, the East Bay Municipal Utility District accidentally spilled 140 cubic yards of cement into the creek in Upper Rockridge.