Potter/Derby Creeks and Powell Street Watersheds
The 3.8-square-mile Potter and Derby Creek Watershed lies predominantly in the city of Berkeley but spans the borders of Oakland and Emeryville in the east and southwest. Draining mostly flat land, the watershed begins on the west side of the Berkeley hills and runs west to San Francisco Bay. The relatively flat topography of the creek channels suggest that they were once tributaries of Strawberry Creek. As the population of Berkeley grew, Potter and Derby creeks were culverted and today are almost entirely underground in constructed channels.
The small .24 square mile (153 acre) Powell Street Watershed is located along the western end of Powell Street in Emeryville, south of the Potter/Derby Creek Watershed. It drains a residential and industrial area through underground culverts to the bay.