Glad to see folks interested in the last remaining freight job in SF. I still marvel that it even exists. It's also interesting to observe how little bits of the old world get chipped away at bit by bit every year.
Here are some more pics that didn't come out well but worth having a look out from documentary point of view.
In this pic from San Mateo Ave. the switcher is returning from spotting loads of sand at concrete place. I was looking at the 1966 era SPINS and according to that there was another trestle over this creek downstream from where I'm standing and the lead ran down to about where 380 is now.
Here they are coming down the ramp
And here is a truck that got stuck between the crossing gates
Here they are pulling through the SFBR yard to yard the gondolas they are delivering.
Here's an out of focus view of them coming off Arthur onto Quint
And here they are crossing Quint and heading up ramp as seen from other side of bridge.