UNDERGROUND PIPELINE CROSSING
APPLICATION INFORMATION AND SPECIFICATIONS
(NON-FLAMMABLE SUBSTANCES ONLY)
INFORMATION REQUIRED WITH APPLICATION: (Refer to drawings)
1. Name of applicant (show name to be used on documents).
2. If a corporation, show exact name of corporation and state of incorporation.
3. Name, mailing address and telephone number of contact person.
4. Location of proposed crossing with respect to Railways chainage station or milepost (indicate milepost
number). Township, Range and Section in which the proposed work is located must be shown.
5. Distance from centerline of nearest track to end of casing (measured at right angles to railroad track). The
casing shall extend to the greatest of 25 feet from centerline of track, 3 feet beyond ditch or 2 feet beyond toe
of slope. Show angle of crossing with respect to railroad track.
6. Vertical clearance from base of rail to top of casing pipe (minimum 5 1/2 ft.). Minimum 3 ft. below bottom of
ditch.
7. Indicate any fixed railroad structures in the vicinity of the proposed crossing such as bridges, signals, culverts
or buildings.
8. Show orientation by north arrow as well as nearby towns.
9. If clearly indicated, show width of Railway right-of-way.
10. Application must clearly indicate the contents to be handled.
11. Inside and outside diameters of both casing and carrier pipes to be shown. Casing shall be at least 2 inches
greater ID than largest OD of carrier pipe including joints for carrier pipe less than 6 inches in diameter. Casing
pipe ID shall be at least 4 inches greater than OD of carrier pipe for carrier pipe greater than 6 inches diameter.
Show insulators to be installed on carrier pipe.
12. Material, grade and wall thickness of carrier and casing pipes must be shown.
13. Type of pipe joint and protective coating (if any) of both casing and carrier pipe to be shown.
14. Method of installation “dry boring” and “jacking” ONLY.
15. Seals are required at each end to prevent formation of a waterway under the Railway. If lower end is above
ground and drainage to carry leakage away from railway is available, seal may be omitted on lower end only.
16. Refer to American Railway Engineering Association “Manual for Railway Engineering” Chapter 1, Part 5 for
additional information.
17. Plans shall be drawn to scale showing the relation of the proposed pipeline to railway tracks, angle of crossing,
locations of valves, railway survey station, right-of-way lines and general layout of tracks and railway facilities.
Plans should also show a cross section (or sections) from field survey, showing pipe in relation to actual profile
of ground and tracks. If open cutting or tunneling is necessary, details of sheeting and method of supporting
tracks or riving tunnel shall be shown.
Minimum Wall Thickness for Steel Casing Pipe for E80 Loading
When coated or cathodically When not coated or
Nominal Diameter (inches) protected cathodically protected
Nominal Thickness (inches) Nominal Thickness
(inches)
12 ¾ and under 0.188 0.188
14 0.188 0.250
16 0.219 0.281
18 0.250 0.312
20 and 22 0.281 0.344
24 0.312 0.375
26 0.344 0.406
28 0.375 0.438
30 0.406 0.469
32 0.438 0.500
34 and 36 0.469 0.531
38 0.500 0.562
40 0.531 0.594
42 0.562 0.625
44 and 46 0.594 0.656
48 0.625 0.688
50 0.656 0.719
52 0.688 0.750
54 0.719 0.781
56 and 58 0.750 0.812
60 0.781 0.844
62 0.812 0.875
64 0.844 0.906
66 and 68 0.875 0.938
70 0.906 0.969
72 0.938 1.000
Construction
a. Casing pipe shall be so constructed as to prevent leakage of any substances from the casing throughout its
length except at ends. Casing shall be so installed as to prevent the formation of a waterway under the
railway, with an even bearing throughout its length, and shall slope to one end (except for longitudinal
occupancy).
b. Where casing and/or carrier pipe is cathodically protected, the engineer shall be notified an suitable test
made to ensure that other railway structures and facilities are adequately protected from the cathodic
current in accordance with the recommendations of current Reports of Correlating Committee on Cathodic
Protection, published by the National Association of Corrosion Engineers.
