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<br /> 5. DEPTH OF CASING:
<br /> Where practicable, casing pipe under railroad tracks and across railroad's right-of-way shall be not less than 5-1/2
<br /> feet from base of rail to top of casing at its closest point, except that under secondary or industry tracks this distance
<br /> may be 4-1/2 feet. On other portions of rights-of -way where casing is not directly beneath any track, the depth from ground
<br /> surface or from bottom of ditches to top of casing shall be not less than 3 feet. Where not practicable to secure the above
<br /> depths, special construction approved by Railroad shall be used.
<br /> 6. LENGTH OF CASING:
<br /> The horizontal distances from center line of the nearest outside track to each end of casing shall be at least 45
<br /> feet at right angles to the center line of such track. If additional tracks are constructed in the future, diminishing these
<br /> distances, the casing shall be correspondingly extended.
<br /> 7. SHUT-OFF VALVES:
<br /> Where required by the Railroad, accessible emergency shut-off valves shall be installed wi thin effective distances
<br /> on one or each side of the crossing.
<br /> 8. LOCATION:
<br /> Where practicable, pipe lines shall cross tracks at approximately right angles thereto and shall not be closer than
<br /> 45 feet to any portion of any railroad bridge, building or other important structure which might be injured by leakage from,
<br /> or failure of, the pipe line.
<br /> Pipe line, casing and ven~ pipes shall be at least 4 feet vertically from aerial electric wires and shall be suit-
<br /> ably insulated from underground electric wires on railroad right-of-way.
<br /> 9. TOPOGRAPHY:
<br /> Crossings under railroad tracks of pipe lines carrying combustible substances shall, where practicable, be so in-
<br /> stalled that the discharge from the ends of casing or vent pipes shall flow away from the railroad.
<br /> 10. APPROVAL OF PLANS:
<br /> Plans for a proposed crossing shall be submitted to, and meet the approval of, the Railroad before installation is
<br /> begun and the execution of the work on railroad right-of-way, including the supporting of the track, shall be subject to its
<br /> inspection and direction. The plans shall include a topographical map of the location of the proposed crossing indicating the
<br /> flow of the discharging substance in the event of leakage from, or failure of, the pipe line and a profile of the pipe line
<br /> extending in each direction from the proposed crossing to the nearest shut-off valve in the pipe line.
<br /> (C) PIPE LINES PARALLELING TRACKS AND ON RIGHT-OF-WAY LANDS
<br /> 1. LOCATION:
<br /> Pipe line shall be located as far as pract1cable from any track or other important structure, preferably not more
<br /> than 5 feet from the right-of -way line, but not closer than 45 feet to the center line of any track or to the nearest point of
<br /> any bridge, building or other important structure. "Bridge" as herein used shall not be deemed to include cast iron or con-
<br /> crete pipes, or concrete culverts.
<br /> 2. DEPTH OF PIPE LINE:
<br /> Pipe line shall be buried to a depth of at least 3 feet from surface of ground to top of pipe.
<br /> 3. WATERWAY CROSSIKGS:
<br /> Pipe lines crossing ravines, waterways, ditches or other surface drains, shall be passed under the channel at a suf-
<br /> ficient depth to be protected from scour, and in such manner as not to interfere with or obstruct the channel or diminish the
<br /> channel capacity. If impracticable to so locate on account of the topography of the ground, pipe lines may be elevated suffi-
<br /> ciently to avoid drift and be supported on substantial supports, the type and design of which shall be approved by the Rail-
<br /> road.
<br /> 4. CASING PIPE REQUIREMENTS:
<br /> Casing, conforming to specifications in Sections 3 and 4, Part (B), shall be provided where the following condition&
<br /> obtain:
<br /> (a) Where the pressure in the carrier pipe exceeds 400 pounds per square inch.
<br /> (b) Where the pipe line is located closer than 45 feet from the center line of any track or from the nearest por-
<br /> tion of any bridge, building or other important structure. Such casing shall extend in each direction to a
<br /> point at least 45 feet from center line of the track or nearest point of structure to be cleared.
<br /> (c) Where the pipe line is deemed by the Railroad to present a hazard to railroad property or operation.
<br /> 5. CARRIER PIPE:
<br /> Carrier pipe and casing shall conform to specifications in Sections 1, 2, 3, 4, 8 and 9, Part (B).
<br /> 6. SPECIAL CARRIER PIPE:
<br /> A special carrier pipe, having a strength at least 50 per cent greater than other portions of the carrier, pipe may
<br /> be substituted for the casing required under conditions set forth in Section 4, Part (C), if approved by the Railroad. Pipe
<br /> line owner shall submit to the Railroad for approval complete specifications covering such special pipe and its installation.
<br /> 7. APPROVAL OF PLANS:
<br /> Plans for a proposed installation shall be submitted to, and meet the approval of, the Railroad before work is begun
<br /> and the execution of the work on railroad right-of-way shall be subject to its inspection and direction. The plans shall in-
<br /> clude a topographical map of the location of the proposed pipe line on railroad right-of-way indicating the flow of the dis-
<br /> charging substance in the event of leakage from, or failure of, the pipe line and a profile of the pipe line on the railroad
<br /> right-of-way and extending in each direction from such right-of-way to the nearest shut-off valve in the pipe line.
<br /> APPROVED:
<br /> R. K. Davidson E. T. Franzen
<br /> Sr. Vice-President - Operations Chief Engineer
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