Overview of the staging level return loop, including the staging yard. Return loop "blob" has a 40" radius, both curves approaching the common turnout at the top right are 30" radius. All turns are eased.

Elevation is 33.5" for staging yard, 34" for remainder. Clearance to bottom of main level above is 6" except in two places where it crosses under the spline roadbed of the main level where clearance would be 4".