http://www.theaceproject.org/index.htm
Looks like the long awaited Alameda Corridor East (ACE) is finally under construction, I saw billboard signs up on San Gabriel Ave advertising the upcoming grade separation work, this is a big linchpin in the planned future of freight service here in Southern California. Considering how long the Alameda Corridor took to complete, looks like they have abandoned the idea of a trench all the way to Pomona and only a portion will be sunk through San Gabriel, the rest looks like improved grade crossings and double tracking the old Southern Pacific route all the way to Brea.
Methinks K.P. may be kept very busy the next few summers [;)]