Black_Diamond
The creek has been added with this changeset. https://www.openstreetmap.org/changeset/141090949#map=14/37.4229/-122.2791

If you would like to get information like this in the future, you can use USGS 3D Elevation Program background layer to get the precise path of roads or creeks covered by trees. You can use the USGS topography map to get the names of those creeks.

I had to add the creeks downstream from here to get to this creek fully connected. There's a lot more creeks that can be added in the area, if you would like to add more.