Shake & Shgle/FP-CS 850814 (2)ST. LOUIS SOPUTHWESTERN RAILWAY COMPANY
Engineering Department
76OO S CENTRAL EXPRESSWAY
{~ALLAS. TEXAS 75216
August 14, 1985
2%4 - 372-7460
Mr. Peter Hennessey
Hennessey Engineering, In~.
1409 Third Street
Carrollton, TX 75006
Dear Mr. Hennessey:
Please refer to your letter of transmittal, dated
.August. 8, 1985, enclosing plans for a water'line crossing
and a sanitary sewer line crossing in Coppell.
Both proposed lines cross trackage owned by Allen
Properties. Since we do operate over ~these tracks~
we will expect the crossing to Conform to Common
Standard C.S. 1741, a copy of which is attached.
Very truly ..yours,
D. R, Andrews
Area Engineer
DRA/bob
Attachment
' Main Trac~ · ,{~
Note; For pipe //he~ carrying _.~ or $id~hg ~ ' .~ 5~"~
........ ............. .... ....' · ,,, . ·
I ~ ' ~ m' O' ~ ~o + ~ ~ ~ '
TABL£ !
THIO~NC"~S OF PIP£ CA$)NG~
Inside Cocrugaf~ Jmooth
LNemeter ;i~n Pipe Jt~lP~
Inches ~ ~e No. Inc~
- 4rolo 14~ ~
~ 12 14 · ~
I~, 18 · 14 ~
21, Z4. 12 ~
30, 36 I0 ~
48,5 4, 60 8
PIPE IN EMBA#KM£NT
RULES GOVEANING THE NSTALLADON OF PIPE LINES TRANSMITTING
WATER OR OTHER NON-FLAMMABLE SUBSTANCES WHEN CAOSSING
UNDER TRACKS', GEI~RAL
l Dz~tance H ~ ~ of he to top of p~pe, ca~mg ~ con,ere ~c~ment ~11
' not ~ le~ than 5%0, (~e except~n ~ ~ral ~le ~ )
2Any p~pe hnes cro¢smg any ~och do not re~ume a cas~ ~d the carrmf
p~ i~ d ~ff~ent $t~th to supper the ~ack ~d h~ w~erti~ ~ts P~ $~h
.p~ li~, ~smg h~ht~ t~n $pec~h~d m table; for s~rhng ~ock may
u~d f~ ~hstalhng p~e, prowled t~ $p~e between carnet PPe and camng
boc*hlled ~th grout Or
If ~rr, er P~Pe doe$ ~ h~ mf~c, eC $trength ~ ~pport trac~, casmg
concrete enc~sem~ ~st ~ installed Length of cosm~ measured at ri~N
to track shall exte~ ~ch $z~e d ~nter hne of trOc~ five f~t pl~
d~stance Ham ~tom of he to t~ of cosmg ~ ~o~e~nt but not
feet, except that where casmg is m~tall~, through rag/road ~ban~m~ d shall
extend beyond slope of embankment
5 When pr~hcable, casmgs '~nd ~rrmr P~Pes may ~ mstolled ~ th~ ~ck~
bormg methods. ~ t~ methods are used t~ mimmum ~h from bo~m
d t~ to top dpz~ or ~e mug ~ ~'-0"~ om p~ dzameter, wh~c~r
~ greater; h~e~ where there is good cohem~ soil the ~pt~
be les5 t~n one MPe diamet~, b~ not le¢$ than ~0, wdh
special permissz~n of the Chmf Engineer. If installed by tumehng
or borin~, the spa~ ~d co~ng ~ carrmr p~pe must be boc~Hted
wdh grout or sand.
4. No piDe hne$ $~H ~e I~td through or under brid~es
'where there zs h~eh'ho~d ~f restrictmg lhe ~reo requi~ed f~r the
purpose f~ which the brid~e$ or cuNert~ we~m built, ~ endan~ermg
foundatmn~ ~ zmp~tant $Hucture~
5. If odddzonal tr~k% ~re c~$trucfed in the future, the pfote~hon
shall be c~rre~po~dingly extended.
6. inve f ted s,~phon~ f~r d~ainoge of ifrt~atjon dHche$ (C S:
u¢mg steel p~pm wHh weMed ~ ~rewed io~nt$ o~ ~rr~te~ ~ron
pzpe mdb all seams ~ Nm~m 'c~m~ riveled ~d soldered having
dmmeter of ~ mc~em ~r le$s and the reqmred $frength lo s~port
track, may bm in~lled without · caszng. C~SING
I Casmg may be ~f e~ther rorrug~d ~c~n ~mo~th ~teel ~r c~ete
It shall h~ve ~uffzcient ~trmng~ t~ support ~ack, except that
h~hter costa9 may be u$ed faf m~tollot/on purpose$ ~ provided
m General ~ule ~ above
Nestable /knocked ¢own) type ploin golvor,zed corrUgofe6 pfpe
of gage correspondmg to requirements of Table i m~ be
used to protect carr~e~ p~pes that are otreod2 in place.
(Jee General Rule 2) PIPE IN CUT.
2 Metal casmg for suppotttng track sh~lt conform to tht~knesses
shown m Zab~ ~ and s~all have j~mtm of ~ther~, ~ld~
typ~ It .shall be ~N~mked ~ moll be mppe~ in pre~v~nve mazerm~
and thorough~ 'coated ~hs~e and ~. Zf MeserwtNe ~ter~al c~t
be ~ ~ ms~e of cas~hg, then t~ cas,h~ ~h~ll ~ ~t le~ one gage
or ~ "th~ker t~ ~herw~ req~rp~
t Concrete casmg for support~ t~k s~ll ~w-the strength specified
m current ATSM Sen~l Des~g~ti~ C-76, Class IV. ~11 l~ints shall be water-
nght and of an appr~ed type of c~struch~n. '
4 The ~h~e d~ometer of c~th~ sh~l be ot lea~ ~,hc~s greater ~an
largest out~e -d,~meter of corner pipe.'
~ S~es of camh; Iar~r th~n s~n m T~ble ~ am s~ci~l c~ses and will
be decided u~n thank m~ts. ' ' '
~ Casmg shall be so m~talled os ~ p~t f~mat~on of w~rway un~r
the ra/Iw.~. D ~hall have ~en bea~.thr~ ~ leng~
~wa~d ~e end
~ Fegardless of the ~ngth ~ Co,Tier p,pe, codn~ m~t be pr~id~
at ~11 io~t,~ where p~pe crosses under d~age dHches ,f ~er ~ less
than 3'-0' C~ng under d/tch ~y be separate from, o~ ~ c~t,nuah~
of ca~mg und~ trac~, and .~t. extend ~ m~mmum of I'-0" beyond mp
~houlde~ on ~ch s~e ~ t~ ditch.
B. When placed m open cut, p~e lines having diameter of 36"or
le~, when crossing trac~s other than. Mn,~ ~,n~k~ ~nd ~f'd,~ may
be encased ~n c~crete as ~hown m Table ~.
9 Where the ~nds of the casing ar~ bel~ ground, they shall be
~ealed to suitably protect against the entrance of formgn material
wh~h m~ght prevent ready r~al of t~ corner
Where t~e ends of the c~smg are at or a~e gr~nd surfac~
~d abeve high water I~el, th~ m~y ~ I~ft open, pr~ded drama~e
~ afford ~n ~ch ~ mqnner ~h~ ~kage wiU ~ c~duc~ed
a~y. from the robbed and
CARRIER PIPE
t Carrier ~pe .~ha#'be ~ an approved typ~ with wader-tight
joints.
F Corrugated t'~n, smooth steel
when u~ed w, lhout ~ co~mg ~h~l h~vm
requ~r~ above, for
thickne~ not le~5 than'that sp~ified forC~s~ 15~ Cast Iron
TABLE
CONCRET£ ENCA$£MENT
FOR PIP£~
·
· SOUTHERN' PACIFIC LINES
COMMON STANDARD
PIPE LINES
-FOR NON-FLAMMABLE SUBSTANCES
CROSSING UNDER TRACK
No SC.ALE ADOPTED' APR. ~'0. 1953
REVISED .,AN. 5, 1970