a) Walkways may be surfaced with asphalt, concrete, planking, grating,

1. b) Walkways must have a reasonably uniform surface and must be maintained in a safe condition without compromising track drainage.
2. c) Cross slopes for walkways shall not exceed 1" of elevation for each 8" of horizontal length in any direction.

native material, crushed material, or other similar material. When crushed material is used, 100% of the material must be capable of passing through a 1½" square sieve opening and 90-100% of the material must be capable of passing through a 1" square sieve opening, provided, however, a de minimus variation shall not be a violation of this Part in an instance where the rail carrier has made a good faith effort to comply with the percentage requirements. Smaller crushed material is preferable. It should be used where drainage and durability issues do not arise. Material that is ¾" or less in size is recommended for switching lead tracks.

e) Walkways within the scope of this Part shall be kept reasonably free of

spilled fuel oil, sand, posts, rocks, and other hazards or obstructions.