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N�; "c : For �i�pe /ines carrying
<br />flammable substances
<br />see CS 1742
<br />Carrier Pipe
<br />/.SD
<br />/2=0"
<br />PIPE IN EMBANKMENT
<br />Main Track
<br />or Sid,;?a
<br />Pioe Line i
<br />J.
<br />5'-0" t H
<br />But not less than /V-0 `
<br />(See General Rule 2) PIPE /N CUT
<br />RULES 60YERNINO THE INSTALLATION OF PIPE LINES TRWAITT/N6
<br />WATER OR OTHER NON-FLAMMABLE SUBSTANCES WHEN CROSSING
<br />UNDER TRACKS=
<br />6E/IERAL
<br />/. Distance H from bWfcrn of fie to top of pipe, casing or concrete encasement snv//
<br />not be /ess than 3'-O" (See exception in General Note 3.)
<br />2. Any pipe lines crossing any track do not require a casing provided the carrier
<br />pipe is of sufficient strength 10 support the hack and has watertight joints. For scch
<br />pipe /ines, casing lighter than specified in table 1 for supporling track moy be
<br />used for mstafhng pipe, provided the space between comer pipe and casing /s
<br />backfilled with grout or sand.
<br />If carrier pipe does not have sufficienl strength 10 support track, casing or
<br />concrete encasement must be installed Length of cosing measured at right angles
<br />to track shall extend each side of center fine of frock five feel plus the vertical
<br />distance from bottom of he to top of casing or avcosemenl but not less than lav
<br />feet, except that where casing is Installed through roI/rood embonkmed /1 shall
<br />extend beyond slope of embankment.
<br />3 When prochcob/e, cosIngs and canner pipes moy be installed by the lacking or
<br />boring methods. If these methods are used the minimum depth from bottom
<br />of he to top of pipe or bore must be 3' - 0" or one pipe diameter, wh/chever
<br />is greater; however, where there is good cohesive soil the Depth moy
<br />be fess than one pipe diameter, but not less than 3 0, with
<br />special permission of the Chief Engineer. If instal/ed by lunnefing
<br />or boring, the space around casing or carrier pipe must be backfilled
<br />with grout or sand.
<br />4. No pipe fines shall be fold through or under bridges or culverts,
<br />where there /$ likelihood of restricting the area required for the
<br />purpose for which the bridges or culverts were built, or endangering
<br />foundations of important structures
<br />5. if additional tracts are constructed /n the future, the protection
<br />shaft be correspondingly extended.
<br />6. inverted siphons for drainage or irrigotion ditches (C. S. 1705)
<br />using steel p/pe with welded or screwed joints or corrugated iron
<br />pipe with a// seems and pmts close riveled and soldered having a
<br />diameter of 48 inches or less and the required strength to support
<br />froct, may be installed without o casing.
<br />CAS/NG
<br />1. Casing may be of either corrugated Iron smooth steel or concrete.
<br />/t shall have sufficient strength to support tract, except that a
<br />lighter casing may be used for instol/otlon purposes os provided
<br />in Generol Rule 2 above.
<br />Neslab/e (knocked down) type plain golvonized corrugoled pipe
<br />of gage corresponding to requirements of Table i may be
<br />used to protect carrier pipes that are already in place.
<br />I r,
<br />TABLE I
<br />TH/CIWS'S OF PIPE CAS/NGS
<br />ch or . FOR SUPPORT/NG TRACK
<br />3'-0"Mia if no casing
<br />(See Casing Note No.7)
<br />Carrier Pipe 'W
<br />2. Melo/ casing for supporting track shall conform to thicknesses
<br />shown in Table I and shall have joints of eilhersaw, welded or riveled .
<br />type. It shall be gofvanized or shall be dipped in preservative material
<br />and lharough/y :tooted inside and outside. If preservative material cannot
<br />be used on Inside of casing, then the casing shall be at least one gage
<br />or 16'" thicker !hon otherwise regw4d.
<br />3. Concrete casing for sopporfing !rock shalt have the strength specified
<br />in current ATSM Serio/ Designation C-76, Class IV. A// joints shall be water -
<br />fight and of an approved type of construction.
<br />4. The inside diameter of casing shall be at least,? inches greater than the
<br />largest outside diameter of carrier pipe.
<br />5. Sizes of cosing larger than shown M Table I are special cases and will
<br />be decided upon their merits
<br />6. Cosing shall be so instal/ed as to prevent formation of waterway under
<br />the railway. It shell have even bearing throughout its length and shall slope
<br />toward one and
<br />7 Regardless of the strength of carrier pipe, casings must be provided
<br />of all locations where pipe crosses under drainage ditches If cover is less
<br />Than 3�-0" CasIng under ditch may be separate from, -or a coalmualion
<br />of cosing under track, and must extend o minimum of /'-0" beyond top
<br />shoulders on each side of the ditch.
<br />8. When placed in open cut, pipe lines having diameter of 36"or
<br />less, when crossing Crocks other than main frocks and sidings, may
<br />be encased in concrete as shown in Table IT.
<br />9 Where the ends of the casing are below ground, they shall be
<br />sealed to suitably protect against the entrance of foreign moterial
<br />wh,ch might prevent ready removal of the carrier pipe
<br />Where the ends of the cosing are at or above ground surface
<br />and obove high water level, they may be left open, provided droinoge
<br />is afforded in such o manner !hal leakage will be conducted
<br />away from the roadbed and structures
<br />CARR/ER PIPE'
<br />1. Carrier pipe shall be of an approved iype with wate-r-fight
<br />joints.
<br />2. Corrugated' iron, smooth steel or concrete carrier ,ape
<br />when used without a casing shall have the some strength
<br />required above for casings.
<br />3 Cast iron carrier pipe used without a cosing shall have a
<br />thictness not less than that specified for Class 150 Cost Iron
<br />pipe
<br />Inside
<br />Diameter
<br />- " Dilch
<br />Smooth
<br />Slee/ Pi
<br />Inches
<br />U. S Std.
<br />Gaye No.
<br />NOr
<br />o
<br />14
<br />B
<br />12
<br />Pioe Line i
<br />J.
<br />5'-0" t H
<br />But not less than /V-0 `
<br />(See General Rule 2) PIPE /N CUT
<br />RULES 60YERNINO THE INSTALLATION OF PIPE LINES TRWAITT/N6
<br />WATER OR OTHER NON-FLAMMABLE SUBSTANCES WHEN CROSSING
<br />UNDER TRACKS=
<br />6E/IERAL
<br />/. Distance H from bWfcrn of fie to top of pipe, casing or concrete encasement snv//
<br />not be /ess than 3'-O" (See exception in General Note 3.)
<br />2. Any pipe lines crossing any track do not require a casing provided the carrier
<br />pipe is of sufficient strength 10 support the hack and has watertight joints. For scch
<br />pipe /ines, casing lighter than specified in table 1 for supporling track moy be
<br />used for mstafhng pipe, provided the space between comer pipe and casing /s
<br />backfilled with grout or sand.
<br />If carrier pipe does not have sufficienl strength 10 support track, casing or
<br />concrete encasement must be installed Length of cosing measured at right angles
<br />to track shall extend each side of center fine of frock five feel plus the vertical
<br />distance from bottom of he to top of casing or avcosemenl but not less than lav
<br />feet, except that where casing is Installed through roI/rood embonkmed /1 shall
<br />extend beyond slope of embankment.
<br />3 When prochcob/e, cosIngs and canner pipes moy be installed by the lacking or
<br />boring methods. If these methods are used the minimum depth from bottom
<br />of he to top of pipe or bore must be 3' - 0" or one pipe diameter, wh/chever
<br />is greater; however, where there is good cohesive soil the Depth moy
<br />be fess than one pipe diameter, but not less than 3 0, with
<br />special permission of the Chief Engineer. If instal/ed by lunnefing
<br />or boring, the space around casing or carrier pipe must be backfilled
<br />with grout or sand.
<br />4. No pipe fines shall be fold through or under bridges or culverts,
<br />where there /$ likelihood of restricting the area required for the
<br />purpose for which the bridges or culverts were built, or endangering
<br />foundations of important structures
<br />5. if additional tracts are constructed /n the future, the protection
<br />shaft be correspondingly extended.
<br />6. inverted siphons for drainage or irrigotion ditches (C. S. 1705)
<br />using steel p/pe with welded or screwed joints or corrugated iron
<br />pipe with a// seems and pmts close riveled and soldered having a
<br />diameter of 48 inches or less and the required strength to support
<br />froct, may be installed without o casing.
<br />CAS/NG
<br />1. Casing may be of either corrugated Iron smooth steel or concrete.
<br />/t shall have sufficient strength to support tract, except that a
<br />lighter casing may be used for instol/otlon purposes os provided
<br />in Generol Rule 2 above.
<br />Neslab/e (knocked down) type plain golvonized corrugoled pipe
<br />of gage corresponding to requirements of Table i may be
<br />used to protect carrier pipes that are already in place.
<br />I r,
<br />TABLE I
<br />TH/CIWS'S OF PIPE CAS/NGS
<br />ch or . FOR SUPPORT/NG TRACK
<br />3'-0"Mia if no casing
<br />(See Casing Note No.7)
<br />Carrier Pipe 'W
<br />2. Melo/ casing for supporting track shall conform to thicknesses
<br />shown in Table I and shall have joints of eilhersaw, welded or riveled .
<br />type. It shall be gofvanized or shall be dipped in preservative material
<br />and lharough/y :tooted inside and outside. If preservative material cannot
<br />be used on Inside of casing, then the casing shall be at least one gage
<br />or 16'" thicker !hon otherwise regw4d.
<br />3. Concrete casing for sopporfing !rock shalt have the strength specified
<br />in current ATSM Serio/ Designation C-76, Class IV. A// joints shall be water -
<br />fight and of an approved type of construction.
<br />4. The inside diameter of casing shall be at least,? inches greater than the
<br />largest outside diameter of carrier pipe.
<br />5. Sizes of cosing larger than shown M Table I are special cases and will
<br />be decided upon their merits
<br />6. Cosing shall be so instal/ed as to prevent formation of waterway under
<br />the railway. It shell have even bearing throughout its length and shall slope
<br />toward one and
<br />7 Regardless of the strength of carrier pipe, casings must be provided
<br />of all locations where pipe crosses under drainage ditches If cover is less
<br />Than 3�-0" CasIng under ditch may be separate from, -or a coalmualion
<br />of cosing under track, and must extend o minimum of /'-0" beyond top
<br />shoulders on each side of the ditch.
<br />8. When placed in open cut, pipe lines having diameter of 36"or
<br />less, when crossing Crocks other than main frocks and sidings, may
<br />be encased in concrete as shown in Table IT.
<br />9 Where the ends of the casing are below ground, they shall be
<br />sealed to suitably protect against the entrance of foreign moterial
<br />wh,ch might prevent ready removal of the carrier pipe
<br />Where the ends of the cosing are at or above ground surface
<br />and obove high water level, they may be left open, provided droinoge
<br />is afforded in such o manner !hal leakage will be conducted
<br />away from the roadbed and structures
<br />CARR/ER PIPE'
<br />1. Carrier pipe shall be of an approved iype with wate-r-fight
<br />joints.
<br />2. Corrugated' iron, smooth steel or concrete carrier ,ape
<br />when used without a casing shall have the some strength
<br />required above for casings.
<br />3 Cast iron carrier pipe used without a cosing shall have a
<br />thictness not less than that specified for Class 150 Cost Iron
<br />pipe
<br />Inside
<br />Diameter
<br />Ca-rtl
<br />,q,91ed
<br />Iron Ploe
<br />Smooth
<br />Slee/ Pi
<br />Inches
<br />U. S Std.
<br />Gaye No.
<br />0in.741al7
<br />Inches
<br />4 1 o lO
<br />14
<br />B
<br />12
<br />14
<br />/I6
<br />15,18
<br />14
<br />4
<br />21,24
<br />12
<br />Ai
<br />30,36
<br />l0
<br />12
<br />4854,60
<br />8
<br />12
<br />TABLE lI
<br />CONCRETE ENCASEMENT
<br />FOR PIPES
<br />d
<br />Inches
<br />A
<br />Riches
<br />Number of
<br />Longitudinal
<br />L2'e Bars
<br />/0, 12
<br />4
<br />4
<br />15
<br />5
<br />4
<br />118
<br />5
<br />8
<br />21,24,27
<br />6
<br />8
<br />30
<br />7
<br />V
<br />33
<br />8
<br />12
<br />36
<br />9
<br />12
<br />A F i&-0,5 irrtr/os A
<br />SOUTH ERN PACIFIC LINES
<br />COMMON STANDARD
<br />PIPE LINES
<br />FOR NON-FLAMMABLE SUBSTANCES
<br />CROSSING UNDER TRACK
<br />NO 'SCALE ADOPTED APR. 20, 1953
<br />REVISED JAN. 5, 1970
<br />
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