1 MARCH 2000
f. Increase in Gage on Very Sharp Curves. Where curves of 12 degrees or more cannot be avoided,
finished track gage will be as follows:
12 to 14
14 to 16
a. Clearances will be Checked. For either new construction or rehabilitation work, the location and
position of all tracks will be checked for proper clearances before the final design is prepared and after
construction is complete. Allowances will be provided for future track surfacing (adding ballast and
raising track) and for small changes in alignment during maintenance.
b. Recommended Minimum. Minimum clearances are shown in figure 6-8 and table 6-3. Vertical
clearances are measured from the top of the rail, and horizontal clearances are measured from the center
line of track.