This track plan shown here was written in about the mid-1980s.
Since then the passenger tracks in Stockton and the interchange tracks at the turntable end of the Stockton Yard have changed quite a bit. The tracks in Stockton Yard have been lengthened, and Bridgeport has two lanes encircling it. A small mountain village is being slowly built near the Summit Tunnel.
Click on the drawings for a more detailed look.