WA9301-SP 971008City of Dallas
Date: October 8, 1997 Submittal No. 02200-01
To: BarConstructors, Inc.
P.O. Box 10 DISPOSITION
Lancaster, Texas 75146-0010
· , .'/
Gentlemen:
We are retu~ng the fol: owing sub~ttal data:
mE~ICATION ~ DESC~TION ~_/
02200-1 Trench Safet?.'.3'~. and ~..t.,.~:a'fMeter Vault
Distribution:
Design Engineer - 1
Project Manager - 5
(File - 1), (Field - 2), (Coppell - 1), (Pumping o 1)
~D~gn Services
Water Utilities Department
Design Services, 320 E. Jefferson, Rm 213 · Dallas, Texas 75203 · 214 / 948-4576 · FAX 214 / 948-4599
A city utility providing regional water and wastewater services vital to public health and safety.
TRENCH SAFETY
SPECIFICATIONS
FOR
MAIN AND BYPASS FLOW LINES
FOR
COPPELL 2 METERING STATION
TO SERVE
NO EXCEV':r'tON TPk~'E'N
,,~r~ ~ g:,"'T~r'~',c
FOR RECORD ONLY
REVIEW BY THE ENGINEER DOES NOT
RELIEVE THE CONTRACTOR FROM
RESPONSIBILITY FOR CONFORMANCE
WITH CONTRACT REQUIREMENTS-
CONTRACT ~ ~Z~..-~ I
By c~!/Y~ oate~!~g
DALLAS WATER UTILITIES DEPT.
THE CITY OF DALLAS, TEXAS
Prepared for:
Bar Constructors
September 1997
Noakes En~,ineerin~, Company, lnC,
3603-B West Pioneer Parkway
Arlington, Texas 76013
Metre (817) 261-7900
This document and th a,leas and aesi~f
imeorporated I~,tela, b aa lasttamer of
profe~jonsd fenices, is ~e property of
NonIces Engineering Co,, Inc, attd is not to
be umi, in whole or b pro't, for any other
project without the written authorization
of/~oaices Eaglneerbg Co., Inc.
REVIEWED
BAR CONSTRUCTORS, |NC.
DATE,
TRANS. #
~ and meamtremonte, liter.
and mome"~ee~ ~ d ~he Wodg
IT "'I il
File No. 97-3 1~8
Bar C~asmk--ic~
September 1997
1.o DESIGN ASSUMPTIONS
1.1
1.2
1.3
1.4
1.S
T!z pers,~ pmtectim systems shown in these spec~cations have been
designed based ou as asmum~ subsurface of Type'B' Soils. haccorl~e
with R~ OSHA (diecave lVhrch 2,1990), pri~to be~'nninE
requfi~d~yOSI-IA 1~2~.
1.6
Cceuac~ ,d~n be xupeu~ble for ~lectixl, appropriate safe~ system
optiee showu in these speci~caticm depeudi~ ~ trench depth and soil
couditiam.
1.9
File No. 97-317g
2.0
DEFINITIONS
2.1
2.2
23
Bar Constructors September 1997
All definitions of section 1926.653 of Subpart P, Paxt 1926, of the Code of
Fedenl Regulaticm .~hall be by refernee an integral part of this sectioz~
"SeMins Engine - The ~-~neer who~e Texas seal is affixed to these
specifications,
"Competmt" ts deacribed in OSHA 1926.650 Co).
3.o
APPLICABLE CODES AND STANDARDS
3,1 Theece~tmetor.~hsll~t!lshoringwodcunderthisecatraetin
nccoixtance with all applicable codes and sisndnrd safety K-,quiz~ments
and tegulati~s including:
3.1.1 OSHA 2207, Conammion ]nri,,.ccry Stmuimds(pext 1926
Oecupatimal Safety and Health Standard)
3.1.2 AISC Code of Standatd Practice
3, 1.3 AISC Specificafire of th~ d~ fabricatim, and
3.1.4 AITC Timb~rConatruc~anMa-mal
3.1.5 AWS D1.1 Structural W~Jcllng Cede
3. 1.6 The Unifurm Building Cede
3.1.7 OSHA 2226
3.2 The late~ edition (including m~91em~a and zev~i~m) of the above
publications in effect c~ pronntlgated at the time of the bid ~hall apply.
law.
[
File No. 97-3178 ~ Ccm,sltn___~sQ~__ September 1997
4.0 SHORING/SLOPING REQLrlREMENTS
4.1
4.2
Existin~ 8~. Wh~e sdstin8 building. othe~ utilities, slx~ts,
hiLZh~ay~,c~olher~-'tmesa~elncloselm:~imitytothetreneh, o~nmy
o~mi, e he affee~l by the ~ t,,~hl-s operation, the Contractor
shall lm:ndde adeq,=_~_,e prcReetim by the use of shecting and slmring to
~ the slnnm~ ~ e: bi~way from possible damage. h The case
of ufih'ties, the Omtraa~nmy elect lo nnnove the utility pro. idcd that the
.-11 ~sses, it ,4,,m be ~he sslnmlal~of~z Cm~act~w protect public
and lndvale pmlxmy md any pers~m or pen~ms who might, as ,, result of
4.3
the applicable x-eq~ip~,~ of tl~ United States Departm~ d
stubproP. Pro 1926 ofthe Code ofYederal Regulstiom. All
,.~h4-eopemims,.-apmmi~.h-nslsoecmfi~toth~
4;3.1
The zt'quitpmP~ of sectims 1926.50 and 1926.651 of
8ubpsn P, Psa 1926, dthe Code ofFederal Regulalions
shall he by t~n~mce an inteSml pm of this section.
4.4.1
Known ~ inm~lla~,vn- raze shown oe the si~
~.It~C~s~~to~
4.4.2
will be lnspecled by a'~Pemon"toens~ethat
lnmch ex~vatic~ has been performed according to fitis
speei~esfi,m and O.SMA. mphtments ~nd to ensure that
no snwrmll-- m~ observ~:! which nlay effect the safety of
as dscn~ed in OSllA 1926.65Co).
FileNo.~7-3178 BarC~s~stmcta~ ~-ptsnber l~J'7
4.0 8HORII~TG~PIIqO I~.t~Q~ Ccfxt'd
4.5.3
4.5.4
R~ccavatad ~ ,.h,,n be dd a cibtm~ away fnxn the
tx-m,h. muno~at~e&H~,.tx-N'h stability. ~~
~~~n~,~(2)~
~of~~
4.:5.5
4.5.6
4.5.7
4.5.8
4.5.9
4.:5.10 Ifacondii~n~plh~tbauseofacliffmsTsllmafi~c~
File No. 97-3178 B~r~ September 1997
4.0 SHORINO/EILOPING REQUIREMEN~
4.5.11 Removeahe~ngtmi~finmbomnwtopasback~,i-~procee~.
4.5.12 Whenb~iffili~wilhin~v~(5) feet of the top of the trmch, all
sharin~rrnybet~tov~unlessthet~.~hconditionsindicatea
4.5.13 No pencn xlmll I:m ex:po~ed~thx~h:~w~a'!:~x:xrti~aaoftbx~ ~
a.~a=~haabeeaz~noved.
4.5.14Addi6omldn~e~htrgtaizeamaybeinstalled.
4.5.15raddmetoe~erMequatemeamofexitmuatbei~ovided
and located ao u to ~equire no nn'e than 25 feet oflateral travel.
4.6 Sho6t~ ABemafive~ ~ th~ W ~
4.6.1
Tnmchesm~egaanSfeetdeep~hMIbeshott~laidbadctoa
stable alol~ ~ ~ae other equival~means of protection shall
effectiwly ~ when e~mana~io~ of ground indicates
4.6.2 IitelllEa~Ptulltlte
P=aunif~distdbutedlateralsoilpressu~,inlbs./fi.2
We= Blfective Soil W~,~!~, per
H= depth of es~vali~ ~ ~ of sulln'ted bank
~ bollem d eteavation, in feet.
Hq=EquiValentl4~iL2htofSulthall~e,e,
P- We*(I-I+I-I~
(Rdem~ce OSHA Rules and Regulatiens-Part 1926 of 29 CFR as
~ by me Federal Register Volunz 54, Number209, dated
October31,1989.
4.6.3
4.6.4
OptienlThe cmxlnctor canuse Slopeas shown inthe Option I
seetim of this speciiicatic~
8ee Drawis~ D-I and C_,enentl Noten-Slope
Oplion II -The c~atacter can use Tmnch ~hield as shown in the
OplimIIsectionofthisspecifixali~
see Drawh~ D-2 and Oeneral Notes-Trench Shields
File No. 97-3178 Bar Constmcto~
4.0 $HORING/SLOPING REQ~S Confd
geptember 199/
4.63
Option rrl -The amtractor can use Trench Shcns as shown in the
Option 11I ~ of this specification.
See Dmwix~ 3 and General Notes-Trench Sh~res
GENERAL NOTES -Slope
1.)
A maximum allowable slope of 1.0 (horizontal) to 1.0 (vertieaB my be u~d
duringmmehexe~vatioain~cilmmri~ialieuofmahemgsymmt Soil
materials that could be sloped to this configuration itw. hde clayrod nady ehy.
conditions (a lime period le~s ~ 72 han~)
nbjeetive hxfiuenee~ from rainfall and normal equipment ~ibmtion~. However, ff
during excavatio~ or ~ of this project ther~ is may
~r local instabih'ty, slopes ;hall be e~t ~ Io a ;lope which is at lem 0.~5
~) to 1.0 (~rtirad) fl~ter ~ the ~:ified ~1ot~ outlined previously,
i.e., this Irarelates to a total alope of 1.25 (horizc~.al) to 1.0 (,a~ical). This
fiatt, min~ of the ~lop~ may b, ~
adj~emt vihratiom (resulting f~m equipmint operatim), exee~i,~
surcharge loads due to equi.r~n~nt or stockpiled excavated matetish,
eracks due todtying, ete.
2.)
Additieaal fiaV~nlnS of slopes is nq. ir~d when any of the following eonditicm are
1.) Slopea in soft loose soils or fill materials .1~11 be thttt~.d to 2:1
2.)Ifanexi.fdngp~mdlelutilityli~ialoe~tedwilh~ahc~mm~dimnee
eclual lo the depth of~lenew utilily excavaliem, all slopes ,h~11 be
s.)
Coniract~'s "Competent Person" ch,,ll monit~ the exeavatirm to ~
GENERAL NOTES-TP,~h Shields
1.)
A Trench Shield is a stmctu~ l]~t nora'rally will not ~ a cave-in, but is
able to withst~nd the forc'cs imposed on it by a cave-in and thercby proted
workers within the mtucture. Tnmch Shields are also referred to as "Tr~'~h
Boxes". These Sazml notes also ax~ applicable to Manhole 8hielda.
2.)
File No. 97-3178 Bar C, mlslnictm~ September 1997
GENERAL NOTES-T~eh 81~ielal C, offd
A.Shop-builtShield'isde~edhadaasamhieldbui/tbyaemmactttorkis
ageat fur fi~r owa me as apetsotmel lmecti~ device aad is not available
4.)
writtenappova]ofdevis_q'm. must be kept at the jobsite alan~with the
· ~.,~-,,r~ctm'e/s aspec~tkms M/:-~t~-;~;~,~l-~om form and othe~
5.)
6.)
7.)
s.)
9.)
File No. 97-3178 Bar C~wuctm~ $e~ 1997
GENERAL NOTES-T~ch Slx, m,s
I.)
Al,,-~i,~ Hydraulic Sho~s are a product designed and mamff~cm~d as an
altenmte to timbe~ shoring in oidcr to provide a light wciSht product capable of
2.)
with OSHA z~-Sulations and provide stnsSths ofme,~dcal ran and hydraulic
cmss-bnl~ wh~-h 8:e not less ,k,~ a timbex brac~ system which would be
available to the Ownft. The followin~ mh~ins,n z~ shall lne
s. Vertical rails shall ha,pc ~: _d~;nmm widlh of 8/riches and have an
equivalentstrenSthinkpn&nEofnoilessthanthatofa3xbyl0"No. 2
capable of havin~ plywood aftached to it, ifnecessary.
b. The hydranile c2~8s-lxlces ,hall be mlnh'nxli~ 2-illdl LD. lad __r~,__h]~ Of
sustaining a axial fc~ce of not less ~han 20,000 pcdma, at a 1.50 safety
f~tor ~t 50%
Hydraulic pumps shall be equipped with cah'brated pmZe having a
~ operatinS nm~ ~750-1500 psi.
e. All oQ~raccessc:zies and specialty tools _~ha11 beAm~jsh~m3~.lweduZ~
s.)
4.)
Plywood, used in conjunction with hydraulic shcxes, _~h~]l mec¢ the followin8
a. Soib,voed plpvood must be 11/8" minimum thickness, exledo~ grade
b. Hindwood plywood must be 3/4", m~nln~m~ riddines, Amic B/xr.h
plywood. "FinnFonn"lxsad~equal, 14 ply-a!l~
Plywood which is broken, bern, frayed ~ othenvise deformed and
unsuitable f~ its intended propose ~',mll be x'~
[
File No. 97-31~8 Bm-Cees~r4n~ September 1997
GENERAL NOTE~Tnmch 81mn~ Ccmed
havebee~sdeqalelytrsizledi~theFpcocechll~f0ttheirinslaJlMic~ saferise
6.)
7.)
s.)
9.)
1o.)
n.)
Theconinetcemayremovethehydrmd~shnnsfrcsnthetnmehdufi~bsek~!linE
open~cm ptovided the following cc~ditims are met:
a) Backfilli~Sispeffmm~byr~.-i~-: devices which do not req~e
b) The ts-,t.-h walls msi,,isi~ fl,,.ir sha~e without
File No. 97-317l Bar C4~mact~s Sqsmbr 1~97
B4ain ~ M~t~r l.in~
T~ Ikpts
Sta. 0+00.00-1 +52.00
Byeass Flew.lAne
TnmehDepass
8ta. 0 + 56.00 - 1 + 58.00
EXCAVATIONS SPECIFIC TO THIS WORK
Sto~O'deep
s,o X0'deep
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x >
mm
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City of Dallas
Date: October8, 1997
Submittal No. 15010-05
To:Bar Constructors, Inc.
P.O. Box 10
Lancaster, Texas 75146-0010
Attention: Ms. Lucy Garcia
Subject: Coppell 2 Metering Station
Contract No. 94-81
Gentlemen:
We are returning the following submittal data:
IDENTIFICATION DESCRIPTION
Drawing//184-1 Temporary Bypass Piping Layout - Municipal Valve Co.
DISPOSITION
9 3 X
Distribution:
Design Engineer - 1
Project Manager - 5
(File - 1), (Field - 2), (Coppell- 1), (Pumping - 1)
Services
Water Utilities Department
Design Services ® 320 E. Jefferson. Rm 213 · Dallas. Texas 75203,214 1948-4576 · FAX 214 1948-4599
A city utility providing regional water and wastewater services vital to public health and safety.
~Bau~h & Associates, Inc.
11203 Jones Rd. West · Houston, Texas 77065
Phone (281) 807-9696 · Fax (281) 807-4607
Products Marketing Specialists
SUBMITTAL DATA
Fo1.
STEEL BY-PASS LINE
For
2 METERING STATION
17OI'
CITY OF COPPELL, TX
PREPARED BY:
BAUGH & ASSOCIATES, INC.
September 25, 1997
REVIEWED
BAR CONSTRUCTORS, INC.
DATE I O / 1 ) ~ 7
.BY EEA,.TF.
TRANS. # i5'0/o-o~
BAR Constructors, Inc. repre~nb that
have determined and verifted ale f'te~
NO EXCEPTION TAKEN
MAKE CORRECTIONS NOTED
REVISE AND RESUBMIT
REJECTED
FOR RECORD ONLY
REVIEW BY THE ENGINEER DOES NOT
RELIEVE THE CONTRACTOR FROM
RESPONSIBILITy FOR CONFORMANCE
WITH CONTRACT REQUIREMENTS.
DALLAS WATER UTILITIES DEPT.
SURHTTTAT. DATA
Projectt Coppall 2 Metering Station
Location: Dallas, Texas
Contractor: Bar Constructors, Inc.
Product Typet Steel Pipe
24"
Descrt ptt on
Steel By-Pass Line
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