Search
Displaying 581 to 590 of 1201 items.
… D. Track structure Scope: This subpart prescribes minimum … Crossties Crossties shall be made of a material to which rail can be securely fastened. Each 39 foot segment of track … the ballast to work through, or will not hold spikes or rail fasteners; so deteriorated that the tie plate or base of …
121.639