Deerfield & Roundabout Railway Track & Wheel Data
(Scroll down for drawing notes. Revision 04-07-2009)
Notes for drawing DRTRK31 (Revision 04-07-2009)
1. Dimensions and details illustrated apply to all screw spike locations.
2. Screw spikes shall be driven with minor diameter of screw spike thread contacting edge of base or rail.
3. Tie shall be securely nipped when driving screw spikes.
4. Screw spikes shall be driven plumb +/- 5 degrees all directions.
5. Spike holes for No. 8 by 1 and 5/8 inch screw spikes are not required.
6. Torque shall be limited when driving screw spikes to avoid stripping tie threads.
7. Side of tie facing base of rails shall be selected to avoid tendency of splitting grain of tie when driving screw spikes.
8. Ties shall be produced from approved nominal 2 by 4 treated lumber by cross cutting 8 foot long lumber into 7 pieces having a nominal length of 13 and 5/8 inches, then rip cut down center of pieces to produce nominal 2 by 2 ties.
9. Unless specified otherwise, ties shall be set perpendicular to center line (C/L) of track.
10. Unless specified otherwise, tie spacing shall be 4 inches +/- 1/2 inch C/L to C/L.
11. Approximately 1980 ties per scale mile.
12. When ties are replaced in existing track, operations shall not be permitted that disturb the surface or alignment of the track. Extra precautions must be taken to avoid lifting track out of the ballast.