Name: UP’s Spine Line
Layout owner: Bob Sprague
Scale: HO (1:87.1)
Size: 10 x 18 feet
Prototype: Union Pacific
Locale: Eastern Iowa
Era: modern
Style: double-deck around-the-walls
Mainline run: 74 feet visible, plus helixes
Minimum radius: 27″ (main), 24″ (industrial and wyes)
Minimum turnout: no. 6
Maximum grade: 2.75 percent
This track plan originally appeared in the April 2017 Model Railroader. Click the link to download a PDF of the track plan.
