07/12/04:  By this date I had put the tunnel in, which I made with a piece of corrugated drain pipe.  Once I got the tunnel in I had to dig down and make a trench for the tracks to keep the grade to a minimum.  Next I put in the large curve at the rear of the layout and the crossover and connecting leg of the wye which would connect to the storage tracks in the tool shed. Then I cut a hole in the side of my tool shed for the track to enter the structure.