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e-CFR data is current as of July 31, 2020

Title 49Subtitle BChapter IIPart 213Subpart D → §213.143

Title 49: Transportation
Subpart D—Track Structure

§213.143   Frog guard rails and guard faces; gage.

The guard check and guard face gages in frogs shall be within the limits prescribed in the following table—

Class of trackGuard check gage
The distance between the gage line of a frog to the guard line1 of its guard rail or guarding face, measured across the track at right angles to the gage line2, may not be less than—
Guard face gage
The distance between guard lines1, measured across the track at right angles to the gage line2, may not be more than—
Class 1 track4618 4 514
Class 2 track4614 4 518
Class 3 and 4 track4 638 4518
Class 5 track4612 4 5

1A line along that side of the flangeway which is nearer to the center of the track and at the same elevation as the gage line.

2A line 58 inch below the top of the center line of the head of the running rail, or corresponding location of the tread portion of the track structure.

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