HomeMy WebLinkAbout05D1793ENVIRONMENTAL CONSTRUCTION ALIGNMENT SHEETS
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PREPARED FOR CITY OF AUBURN, KING COUNTY, WASHINGTON
THE PORTION OF THE PROJECT L OCA TED WITHIN
TOWNSHIP 21 NORTH, RANGE 5 EAST SECTIONS 23 AND 24,
COUNTY OF KING, CITY OF AUBURN, S TA TE OF WASHING TON
EXTENDING FROM THE PIERCE/LINO COUNrr LINE
IN A NOR THEA S TERL Y DIREC TION APROXIMA TEL Y 0. BT MIL ES
»-
REC
.R., DMVAWCERTIMATIM
TweE DmwmMS r+'t • "t TO THE
CONSTRUCTM AE00RDS.
BY
ATE
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.i '- t BY CITY., DATE
PROJECT REF: GR"-WlQ
THESE PLANS ARE APPROVED FOR
CCW0644WE WTH THE CITY OF AUBURN'S
ENGINEERING DIVA REQUIREMENTS.
APPROVED -Y.011� _ S
DATEAPPRROVED:
n
MARCH 2O03
IAAi)�
0"17933
OSDI74993
NE d Simon 5. KW of Section 4, Sw of SK tan 3.3,
Leo Location T. 2t)14., R. 6 E. T. 2101f.. R. 5 E, T. 21 IN., R. 5 E. L"all Location
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(April 1- September 30) (April 1 -September 30)
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Seed Mix 1 4 1 4 1 4 1 S i 141 1► 1 Seed hilt*
Sift Fence 1 Straw Balm SF-1961' / STB-42 SF-302' / ST"2 SF-326 SF-632' SF-31 T / STB-48 SF-1881' / STB-50 SM Fence f Straw Bales
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DATEAPPROVED: 1 - � � 2
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Tiaetch Sneelters 1 37 1 711 1 3 1 2 3 2 1 2 3 5 3 1 2 17
2 1 2 3 2 1 't'� gig
POD Depth POO Depth
NOTES: 10. seed Mixtures
Unless an aitemwve good mac b regauaabad by the is>ndowww or land managing 8 - Cordaucf permanent slope ba0mrs in ad win except agria esd italda, pastures, dared D - Eftwe stionht MsepecW may dnnge the location of slit f mac based on Wald an Morn
1. Cad vegetation off at giriwnd level, leaving exileb ig rod v1silants in place and remove the vegebtHorn the seed Machado Holed shell be used E - In adina t inuciion arsaa rAramir a ► wdaoa at *%& and o€iMih want dq In elonLaol�s
s es &hall be talc awayhrn oany wallemourso and
front the wellaavd for dapcoel. Any a6eern aidbee
C - bralhi shape baashm aaaafaa ire hgld•of�arryl wih a 2 to 4 paara I adMepa to dMd f W
aanst�on arse me inspect on a weekly basis and repair wWA 24 inoursgof each 0.5 inch of rainlai
LEGEND:
dial be directional in older to minimize damage to r>nrha nniq trade.
11. Sediment Barriers (SEE DETAIL 18)
l o o >rlebta awe- E a aMhta awe ra trot pal Natal ail M
Sediment barriers will be installed imrnedistely after Initial disturinance of a +arelerbody,
edge of flla rip of-wey.
16. Stay Bale Sediment Barriers (ME DETAIL.14)
Ds
�
DRIVABLE BERM OR STRAIN SALES (SEE i1ETAli.15)
2 Limit of tree durrnpa and gneding >tctivities ba directly over to trenc� rr lithe. Eire not grade a
p
we Band or s4sioent upland- Sedaraent bashers *01 be properly maintained Ovoughnoaut
A- Use wood stakes wheanevaee palflrb. Sleoi rebar may bee used where Bail con ffifim are
an
STRAW BALES (SEE DETAIL 14)
remove siumps or root systems from the rag of the sight -of -way a1 w+e hands isles* the Chief
construction and reinstalled as necessary- VYtws necessary, sediment barriers will be
14. Trench Br+eaieera (SEE DETAIL 21)
tozen or wry.
E
SILT FENCE (SEE DETAIL 19)
Inspector and Em rimental inspector determine that sadisty-relarted construction constraints
installed to prevent sediment flow into wreftWs or watwbodles,
A - Spoilift oW Iaealiane 00 be iOWM n dam Win alas aWra WN disetlad by the
8- In ca1SaN ar "*%w at illas Mad of each waorking daay. Innon-**4*
require removal of trees from► theworMV ads of the 00"IlLway•
ErMrriaalMnerMal fnepedar or auMwrined oorrhpany raprseeralelihaa;
d an a+lraaill►baraia and napair tsaalMin 24 hours of each ti.6 inch al
>t-1
ACCESS ROAD I+N,BABER
12. Temporary Slope Breakers / Waterbers (SEE DETAIL 22)
raak".
tt
WAT@t WELL
3. Segregate the top onol4bot of f from the trench lane, exospit in areas where standing
A - Install temporary slops blee lows over the backfiileed, rewconiatued construction sigh-ofasvay
Slope (Pacoent) Spacing (loot)
C - Wm ranraYMlp M1Masaai~M i+ewlr �i.
C3
SEPTIC TANK
walar or saturated soils are present.
as specified in FERC's plea (>sac'ion V S). The osdfall of each temporary slope breaker
< 10 Nona
D- 00% reaUraellm E lslae m hat omaillol! tier so tlrreni control, straw maybe used as match.
win be to a stable well-vagabled am or to an rs0 device at the end of the
10 -15 500
E - Maw ONW bate tar pea would bah aa8ll oM barriers in am ff Wdmmitberh dramagaa or road
,,,,,,,,,,•°
SEPTIC DRAIN FIELD
4. Segregate the top one 4bot of topsoil from the tranch lane only in avourds and hayfields. Vegelelion
slom breakers and off the construction right-of-way. Inataff temporary slope breakers at the
15 - 20 300
soll, too" cory ey sedlimant halm runoff from this right-d-way during Storm everts.
on the working side to be mowed ar d Ildt in place. Trench spot will be spread over the marbled
following Ong,
20 - 30 150
F - Drive dW w a mi ntimum of 12 hidteg into ground.
vegetation and "hotlines" for added cover f padding.
> 30 100
G - Salt Tina* uric nary be asad.
Skupa (pwrcerd) S {loot)
H - Sedi rm t emtrol struckaee may be placed oft ttr! a construction by hand if the
5. Salvage too" from the trarnch line in residential areas "or import topsail as necessary to assure
< 5 Norte
See Slope Cahaagory Table for tsalegory numbs
location htaa been approved hwthe EnvirorwoO bgrlarl l
adequate reclamation.
s -11s 300 1- Drk►krg aneuaal eedilaerdbaarlers le panahwlpawi. ilnlrael►aeiluptaaabraaeea bright•a4rray. FIEV4S10NS
15 - 30 200 8 - Trench bradlers shall eonsisr of approved sacks filled with a minimum 0.6 cubic feet of sand. J - Drfvabla boats rasp bee mad in tbu of idtow bah bo leas - r a fM oearia&x4w rigth4d*w d NO, 0AE BY DESCRIPTION
6. Construction within wata+twdieg and wetland drainage features may ody occur at the Ones > 30 100 C - Trench b al" shall! be hayed into trench sKW* d where detannined necessary by the waftmb aad vasil u ssings-
stiputated In the Hydraulic ftjed Approval (d noted in the Seasonal Corwh c*m VVi cow above) isssued
for the project by t# Hahn and VVOdlife- For all Atrmsd cvassirga, if n waiter is prey 9nt Erwironrnental inspector or aultna>zed company representative. FERC
in the streambed at the time of construction, the waterbady or wetland drainage fwWre may be open cut. 1NiPLEt NTATION PLAN2-25 2o(a3
7. Claw vegetation and grade as necessary only within certificated and staked construction limits.
8. "Navionga and Control
IiWrMalAs substances, chemicals, fuels and lubricating oils will not be stored within 100 feet
ofweb ft* banks or wetlands or within 2W feet of water supply wells. Eqjprwd *9 not be
tlreled or mdntained with 100 lest of welerbbdy banks or wetlands or within 2W feet oiwaier
supply wreis wim the procedures specified in the SPCC Plan are foilowed.
9. Stream Bank weA
Apply maliil, d all stream crossings. Apply matting at wetland crossings if defer mined
necessary by flu Environmental Inspector.
Sea Slope Category Table for taaMgalry numbers
B - to active can areas, repair or replace at the end of each waking day. In non -active
construction areas inspect on a weakly basis and raw within 24 hours of each 0.6 inch of
rainfall.
I& Polmotent Slope Breakers, / Vbibrbras (SEE DETAIL 22)
A - The t woncy of slope brealmn oil be based on VVisfhirOM Department of Natural
l
Resounoea Forest Practice Gdd*nsalllalh cep a rim on serval 1b *hors such as slops,
stuurlaw rnabielels, elevation, spaabd soft Foil, iopogroaphy and experience. As a general
rule, llVnhmgton Depwtnwt of NdtoO Rnou on irdaNs >hlape breslfaeas for sArny dear -foot
rise or fell in elevation. The Environmental Inspector may modify the sprucing based on
sale-specAc cheraclariatics and to % dors alaar W in the lAbastsi gton Department of
Nea4ural Resources Forgo Practices Ad
D - For each wAla id crossed, irldMl a permanent slope breaker and a trench breaker at the
bags of slopes near the bouandary b Mween the wedarnd and adjacent upland areas.
Locate the tr anch Weaker km~ uphslops of the slope breaker.
16. Sli Fence (SEE DETAIL IS)
A - IsstaH temporary a* lerhoae mnedM* after Initial ad dtiurbsnce as necessary.
B - Slit lances mW be properly Homed throughout ca hxftn (on a dall, basis during
active o uctioh) and installed as necessary until replaced by permanent erosion
cx ftb or restoration b complete.
C - Environmental inspector may substlitutal at fine with straw baba in area where gilt lens
may not be suitable to Paton spoils / sediment within the consliaction right-of4M said extra
work space.
17. Environmerdd taop Pier
A - The EravbDarrtontai inspectorwill verify the locations of all temporary erosion *Mendel meaKM
and ddAzallon needs in all areas. The Environmental trApecW will ensum that OW400 a Y
assaiaaa mftls are property installed and maintained.
B - The Environmental Inspector n>d inspect all temporary erosion control r>sasums at leant
- on a daily bests in areas of adiva coast udion or equipment operalian;
- on a wn* bow in areas with no cwtstruction or equipment operation; and
-within 24 hours of each 0.6 inch of ndr>fati.
C - lire Environmental Inspector will ensure hurt all ineffective temporary erosion control msesures
are repaired within 24 hours of Werittkation.
D - The EirwWo nmentsal Inspector rust appmve the location of At oil, hazardous substnce,
chemical storage and fueling area, other material storage area and construckm equipment
maintenance areas prior to their tune.
26 INCH IGNACIO TO SUMAS PIPELINE
30 INCH IGNACiO TO SUMAS PIPELINE
C PROPOSED LATERAL PIPELINE
.- .e--.--. ACCESS ROADS - INGRESS / EGRESS
- - - - - SAFETY FENCE
NO REFUELING AREA - UNLESS SPCC
PLAN PROCEDURES UTTLRED.
t WETLAND AND V4ET'LAND BUFFER
SLOPE CATEGORIES
TRENCH BREAKERS
WIATERSARS
SLOPE (%)
SPACING (It)
SLOPE (%)
SPACING )
1
<10
NONE
1
<5
NONE
2
10-15
500
2
5-15
300
3
15 - 20
300
3
15 - 30
200
4
20 - 30
15D
4
> 30
100
5
> 30
100
NORTHV&ST PIPELINE CORPORATION
`"°`''° `" ""� ENVIRONMENTAL CONSTRUCTION ALIGNMENT
EVERGREEN PROJECT, AUBURN LOOP *tea,
STA. 15324+00-15275+00 CA$ PIPELINE
TVVS. 20-N & 21-N, RANGE 5-E
CITY OF AUBURN, WASHINGTON
DRAWN W. MC DATE: 07-0842t7KIa2 ISM FOR BID: SCALE: 1 INCH = 200 FEET
CHECKED BY: DATE: ISSLED FOR CONSTRiJCTION:
APPROVED BY oIATl: DRAWING
NIJMiBER: 14M.22-243E SHEET1
1 2W3 OF 7
i5 micrmrWon I auburn aubum 01 a03.d
OSDOV3.
UMMI.Afation
SE ofSeoaon33,
T. 21 N., R. 5 E.
flyN4ieascnE'
E.
Tw bred S3
LoadLiocebft
Owner"
Tiq, Rerlpr
d:uraw. Caaflard Vv.� — - -
Maetley. Jae E.
i sop m, Slew & Eva S. ft.,dt Rim s acres
Thorpe, Berne 0. "-�
- - — — - tsoatirt. thNtofa C. J< - . _ _ _ _ _ _ 1 _ - --
i1111K, Dnrarls
L- Hwtas, Doi E.
�
V. j' - - - � �.
--
�
Thmm,
&�
ANsahst
J ------------- - - -
Hapen, Tor & Lyme
L 71i Danrnt M. BAmt 0. -
NlurlCieur�hoot Tighe
I Ong
No CuRurai fft tnrp
Survey ! Naonfloain8
.Seasonal
See Note 6
seasonal
Constru %on V*Xbw
April 1 - September 30)
Construction Wlthdow
Vegetation Clow"
'die
Now 7
See
Note 1
See
Nate 7
Ve""Morl
an
SW
t-of-Way Graft
taieia 7
Note 2
Note 7
Rlght-of Way Grading
Topsoil SGINAMP
Note 5 Norw
See Note 5
See
Martha Nate 3 !barn! See Note 5
None
See Note 5
Norms
Topaa7 Sah"s,
Sawed Mix
Burt
Silt Fenoe f QMsnw Bales
SF-229
SF-311'
SF-349 i STB-60 SF-247' / STB40 SF-340' / STB-60 SF-410' / ST&72
SF401'
SF-M'
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� A•raae �
li\ f------...---------\ � aFs % 1
-------d>Fasnasattw'r ------ --- z --- 4�-s------------------ - - r----------- GRA02-0010
— f U
'+s Tk� \�''� /n-13ii4 � g m g W v i2 , � _ %` t m �.. _ _ _ _ — - _ ! � RECORD OF DRAVWNG CERTIFICATION PROJECT REF'
gyp Was o WI w was W �------ W 17 W
LLJ
J LL �m y , y o n W LL 2.' 7 /LII.�LL, Z r r r a (n 1?EeIA Y THESE PLANS ARE APPROVED FOR
j xi J W R W W NZ W W g THESE DRAWINGS CONFORM TO THE
LL p y m t -. LL m m W o _ CONFORMANCE WITH THE CITY OF AUBURN S
0 2 ` c o `" a3 Qz W mLL w O O m W o
o o W � o Qg G z w as CONTRACTOR'S CONSTRUCTION RECORDS. ENGINEERING DIVISION RiEQUIREMENTS.
g BY DATEit I
J
LL
o APPROVED 8Y.-,
r
TI7E'LEIPOSITION:
CONFIRMED BY CITY. DATE DATEAPaPROVED. M
Trench Breakefs 1 2 1 2 3 1 2 1 1 121 1 2 1 i 1 214121 3 1 1 13151413121 1 2 1 1 1 a 1 1 121 3 151 2 i 1 2 1,51 2 1 Thonch Breakers
Pipe Depth Pipe Depth
NOTES:
10. need i!atixtures
Unless an alternative, seed mix is spook* requested by the lardowner or land maw
1. Cut vegetation off at ground level, heft existing root systems in piece and remove the vagetaton
agency, the seed mixtures noted shall be used.
11on le weflantt bar d sposel. Afny dm ten We tress shall be fold away ftm any terse and
adhait be lit a ftrnal In orderbao nNralrtdrs darn ipe to remainlnp bees-
i i . Sediment Barriers (SEE DETAIL 18)
Sediment barriers will be Pis did immediately alter initial d wbwm of a watler'body,
2 Limit pulling of free siuna� and grattirtp ata4lwlies directly over the trendy line. Do not or
wetland ti as upland. t s baarrisrs vaM be maintained
remove stumps or root systems frart ttwe seat of the ' -cf-way in wetlands unless the Chief
r� y
b s willthroughout
construction and reinstalled a rneosstary. tfYthnte rnsoaaaary, sedkrner>k barriers will the
s
nit reinstalled necdh essary. necespropesary,
Inspector and Environmental Inapaaolor'delarmine that safely -related construction constraints
eto prevent sealinMttttou►ihm,, - Mrndo orwMal616-1-
rrqutr+a removal of trees from the wo"q side of the right-of-way.
12. Temporary Slope Braden I Woollws (SEE DETAIL 22)
3. Sepr+ep le, the top 4ns#ret of tlopsoll from the trench the, except in areas where standing
A - instal lmpoarary slope breskent over the bec iff& , as osnl oared canstrudion ftpht afew
wrier or gated soda as priaserltt
as spectifad in FERC's plan (Section V FI). The ouft of each Iwimporery slope broaalaer
will a his, well-vegcons d area or to �i device at its end
4- tte tap atnefbd of1*W Amen tha trencfh line only in croplands and hsayil". Vegetation
-o lay. Wrap s, t t
breakers artr! off the construction ripM-of wag►. htNe1 terrtpaary slope breakers, at the
slope r
onon tl a wookk aideto be nhoevsd and fell In place. Trench spoil will be spread over the motored
fotbwirhg speacing:
vepatatiorh and " hOttinee for aaddsd drover i padding.
"osrrt}
5. Salvage topsoil front the trench line in residential arm "or import "soil as neosseary to assure
None
adecluste reclamation.
5 -15 30D
16-30 200
6. Cowhxtm witltNt wabrbodkw and wefhnd d m' mom features may only oco ur rat the'tintes
> 30 100
siipulabed in the Hydraulic Pmpd Approval (a noted in to Seasonal Constnxstctn Window above) fissured
for the project by Washington Depaubrhent of Fish and ta'NMtlife. For all turned cro ngs, if no water is present Sege Slope Category Table for category numbers.
in the streambed at the time of comet, the wa'lerbody or wetiaand drainage feature may be open cut.
B - In � areas, a o replace at lute each working day. In live
7. Gear• vegetation and grade as near only within certittcated and staked construction limits.
air it .6 Inch of
construd#lorn areas inspect on a weekly basis and repair within 24 hours of each 0.5 latch of
construction
rainfall.
B. 5pt11 Prevention and Control
Hsraratc m aubstanoes, chemicals, fuels and lubricating ails will not be stored within 100 feet
13. Permanent Slope Brsdm Iftftbars (SEE DETAIL 22)
of weleftily loser k dr wetlands or within 200 feat of waldr supply wells. Equipment will not be
A -The faquoW etdepe low dears hail bo based on Waftoo Dspa rlmart of Natural
fueled ar it ANO Mad ta/yn 100 oast of waderbody banks or wede ndaa or within 2D0 feat of wafer
Resouces Forst Pthrofos GuMallnes~depanckonseverallectors such as slops,
supply wells unless the procedures specfied in the SPCC Plan are Hollowed
surface malenieb, alehasation, expected tit0ar1 , topography and experience. As a general
wis, Wnl I oen Dap rkw t of ihl*AW Ameorross inserafis slope beakers for any len-foot
9. stream Barld at"
do or M In ebvd A. like 1164rommN I specbor may modify the spacing based on
Apply m g at all str asm aossirip. A►p* mg ot wetwd ammp g deiafMMW
sNewpeolk charade Wcs and the factors specified in the Washington Department of
necessary by to Enviroamental IMPKI r U
Natlueel Nesalnnree Forest Practices Act.
B - Cam M d pMrpsnertt Map' in all areas a ac ept moric:ulturai fields, pastures and
D - Environmental I speolor may change the location of aft lends baseed on Reid conditions.
taware.
E - Inadow conskudton areas, reparir o r+Nhisoe In fnof 0*0
C - IndW elates brsatters adxose the rip 046 aay hulls a 2 to 8 percent o WOM tb dwarf parr
oonstruction area inspect at a wastage basis send repair wfthin 24 hours of each 0.5 kWh of MM111 d.
boa delete area. Na stable area is not present, instal an energy -dissipating device of the
wipe of the right apt iwsy.
16. straw Bale Sadmart Barriers (SEE DETAIL 14)
A - Use woad stakes whenever possiblesisal nebw may be used where sot connditions are
14. Trench Breakers (SEE DETAIL 21)
two or rocky.
A - Spacing and locations shell be installed as shown be * ahiees Otherwise directed by the
B - In *Hive construction area, repair or replace at the and of each working day. In nom-astive
Environmental Inspector or ahulholtsd company representative-
lion areas inspect on a weekly basis and repair within 24 hours of each 0.5 Inch of
falwall.
Stops (peruses) Speedup (io"
C - Vow removing balm, scatter sift over fWtt=of-way.
< 10 None
D - During reclamation if betas an not rheerim d for sediment control, straw may be used as mulct.
10 -15 500
E - Place straw bale or pea gravel bag sediment barriers in email ehtar nOw t drWA90A or road
15 - 20 303
ditches that may convey sediment laden runoff from the ng!44—way during storm events.
20 - 30 150
F - Drive stakes a minimum of 12 Frans into ground.
> 30 100
G - Silt Faroe lebric may be used_
H - Sueenent control strhxftm may be pieced off the construction rigtW-way by hand it the
See Slope Category Table for ado" numbers,
location has been approved by tna EnMraorrrnental inspedlar.
1- Driving around 11 finharht barriers is prohbilsd. Remove and replace for access to right- -way.
8 - Trench breakers shall demist of approved tacks Mad with a minimum 0.6 cubic beet of sand.
J - Drivable barns may be used in rreu of stlanr bola barriers across the construction right-of-way at
C -Tra nch breakers attadl be keyed into bench aidewall where determined necessary by the
winds and road c osair w
Errviromruartfrtl inmpecor or sulhortwd company rtaprgaertta4va.
D - For each wetand crossed, inslati a patrnenert slope breadda' and a trsnhct breaker at the
17. Entdrniowltal kupedaor
Erase of slopes tear the boundary between the wafted and adjacent upland areas.
A - The lE n it onmartol inspector will verify to lord of ASUmpdxary eroaian control n'asasures
LodwMn the trench Meeker immadis" Web" of the slope brsedw
a* sWiral r needs in all area. The Ew* orrnsnlei Inspector will ensure that temporary
erosion controls we property installed and rhaairiMped.
16. Solt Fience(SEE DETAIL 10)
B - The 6hvirorunau tliN trnapeclor wit inspect all lernpaavy session axrnMasl meaeuves st least
A - Install lem poraryr silt 11 iooes irmris isisly abler inilii l salt disketence as necessary.
- an a daily bait in area of active goat or equipeNot I p I I I;
B - Silt %noes must be properly fraMrhfatrhed throughout construction (on a daily basis during
- on a waft baba in areas wdlh no cionsbuction or equrNrnnt opeurMerr and
alive construction) and installed as necessary until replaced by permanent erosion
- within 24 haunt of 660110.5 inch of maatfeli.
ctmor rauaslaraton fig oanpls6e.
C -The Environmental impecicor will snow tad all inetlsc/tas I p, I Maasi n spsrW wMnws
C - Environmental Inspector may substitute sift fends with straw bales in areas where sit haute
are repaired within 24 hours of wort.
may riot be suitable to retain "to I sediment within the cionstruction right-of-way and extra
D - The EmWareasoliel Irrepsdi mvdspxmthabcWmofdafi,huwbwvAubrak
work apace
cisfnniaet cheeps wed tAW4 areas. ocher rfraab fW ador091 avast and NO /11111/11 aa*dPlIMrtt
mainlenerm areas prior to their use
LEGEND:
DRIVABLE BERM OR STRAW BALES (SEE DETAIL 15)
STRAW BALES (SEE DETAIL 14)
(
siLT FENCE (SEE DETAIL 19)
la•1
ACCESS ROAD NAISER
tt
WATER WELL
SEPTIC TAW
SEPTIC DRAIN FIELD
IN$IQNS
N. DATE W DESCRIPTION
IMPLEMENTATION R.AN 2-25-2003
28 INCH IGNACIIO TO SUMAS PIPELINE
30 INCH iGNACIO TO SUMAS PIPELINE
C PROPOSED LITERAL PIPELINE
4 •�- + -s
ACCESS ROADS - INGRESS I EGRESS
- - - - -
SAFETY FENCE
NO REFUELING AREA - UNLESS SPCC
PLAN DES UTILLZED.
WETLAND AND WETLAND BUFFER
SLOPE CATEGORIES
TRENCH BREAKERS
WATERBARS
SLOPE (%)
SPACING (It)
SLOPE (%)
SPACING (1)
1
< 10
NONE
1
< 5
NONE
2
10 -15
500
2
S -15
300
3
15 - 20
300
3
15 - 30
200
4
20 - 30
150
4
> 30
100
$
> 30
100
NORTHWEST PIPELINE CORPORATION
`0- NO. cHK. Am- ENVIRONMENTAL CONSTRUCTION ALIGNMENT Irm
EVERGREEN PROJECT, AUBURN LOOP
STA. 15324+00-15360+09.0 GAS PIPELINE
TWS. 21-N, RANGE 5-E
CITY OF AUBURN, WASHINGTON
DPMN BY: PIG DATE: 07-4WM 2 ISSUED FOR BID: SCALE: 1 INCH = 200 FEET
CHECKED BY: DATE: ISSUED FOR CONSTRUCTION:
APPROVED BY: DATE: NUMBER: 1408.22 244A 2
25 MAR 20aI3 OF 7
i5 rniaosiaUart and auburn auburn 02 a%.Om
osDi793
GENERAL NOTES - CITY OF AUBURN
GENERAL NOTES - NORTHWEST PIPELINE CORPORATION
1. This development project shall conform to the City of Auburn's requirements and be in
accordance with the approved plans. Any changes from the approved plan will require
approval from the owner, engineer and the city.
2. All workmanship and materials shall conform to the Washington State Department of
Transportation (WSDOT) Standard Specifications for Road, Bridge, and Municipal
Construction (2000/latest edition), except where supplemented or modified by the city's
Standards Manual. Copies of the above documents shall be available at the jab site
during construction.
3. A pre -construction meeting shall be required prior to the start of all construction.
Contact the public works department at 253-931-3010 to schedule a meeting.
4. Locations shown for existing utilities are approximate. The contractor is cautioned
that overhead utility lines may not be shown on the drawings. It shall be the contractor's
responsibility to determine the true elevations and locations of all underground utilities
and the extent of any hazard created by overhead utility lines. Identification, location
marking and responsibility for, underground facilities or utilities, is governed by the provisions
of Chapter 19.122 Revised Code of Washington (RC". Prior to starting construction,
the contractor shall call ONE -CALL (1-800-424-5555) for utility locations (water, sanitary
sewer, storm sewer, gas, power, telephone and television).
5. Prior to the start of construction a proposed route and schedule for hauling material
to the site shall be submitted to the city for approval. If the city believes that the
proposed haul route will adversely impact the street network, hauling may be limited to
appropriate off-peak hours or alternate routes.
6. The contractor shall be responsible for public safety on and around this project.
Prior to the start of work, all method and equipment used for traffic control and street
maintenance shall be submitted to the city for approval. Contractors and their surety shall
be liable for injuries and damages to persons and property suffered because of contractor's
operations or negligence connected with them.
7. All construction surveying for extensions of public facilities shall be done under the
direction of a Washington licensed land surveyor or a Washington licensed professional civil
engineer.
8. Certified drawings are required prior to project acceptance. Refer to the city's
record construction document handout.
GRADING AND EROSION CONTROL NOTES - CITY OF AUBURN
1. Within the City of Auburn, all required sedimentation and erosion control facilities
indicated on the plans must be constructed and in operation, prior to land clearing and/or
other construction activities (See Construction Sequence Note 2). These facilities shall be
maintained, and upgraded if necessary, to insure that sediment -laden water and storm drainage
runoff does not impact the adjacent properties, natural drainage ways, or the existing city storm
drainage system.
2. The sources for all material imported to the site shall be approved by the city.
3. The detention (retention if infiltration system is used), sedimentation and erosion control
facilities depicted on the approved drawings are intended to be minimum requirements to meet
anticipated site conditions. Additional drainage and erosion control facilities may be required
as situations warrant during construction. The implementation maintenance, replacement and
additions to these control systems shall be the responsibility of the permittee.
4. The temporary erosion control facilities, including all perimeter controls and the detention
(retention if infiltration system is used) control ponds, shall remain in place until final site
construction is completed and approval for their removal has been received from the city.
5. The contractor will be required to water the site, as necessary, to reduce dust emissions as
a result of construction activity. The contractor shall also sweep all affected public roads, as
necessary, to remove mud deposited as a result of project construction activity.
6. All areas of active earthwork which have the potential for erosion and sedimentation impacts
on adjacent properties, natural drainage ways, or the existing city storm drainage system must be
stabilized according to the following schedule:
From April 1 to September 30, areas at final grade and those that are scheduled to remain unworked
for more than 30 days shall be stabilized within 10 days.
From October 1 to March 31, earthwork activities shall be conducted in stages in order to minimize
soil exposure. Exposed soils with an area greater than 5,000 square feet that are scheduled to
remain unworked for more than 24 hours and exposed areas of less than 5,000 square feet that
will remain unworked for more than seven days shall be stabilized immediately.
CONSTRUCTION SEQUENCE FOR THE EVERGREEN EXPANSION PROJECT
1. Pre -construction Survey
Before construction begins, NWP surveys environmental features along proposed
pipeline segments. Utility lines and agricultural drainages are located and marked to
prevent accidental damage during pipeline construction. Next, the pipeline's centerline
and the exterior right-of-way boundaries are staked.
2. Clearing and Grading
The pipeline right-of-way is cleared of vegetation. Temporary erosion control measures
are installed immediately after initial ground disturbance where needed.
3. Trenching
NWP then uses backhoes or trenching machines to excavate a pipeline trench. The
soil that is excavated during ditching operations is stockpiled on the working side of the trench.
Because NWP will be working over the existing lines during construction of the Evergreen
Expansion Project, the material from the trench will be spread over the working side to provide
additional cover to protect those lines.
4. Pipe Stringing
Individual joints of pipe are strung along the right-of-way adjacent to the excavated
ditch and arranged so they are accessible to construction personnel. A mechanical pipe -
bending machine bends individual joints of pipe to the desired angle at locations where
there are significant changes in the natural ground contours or where the pipeline
route changes direction.
5. Welding and Coating Pipe
After the stringing and bending are complete, the pipe sections are aligned, welded
together, and placed on temporary supports along the edge of the trench. All welds
are then visually and radiographically inspected. Line pipe, normally mill -coated or
yard -coated prior to stringing, requires a coating at the welded joints. Prior to the
final inspection, the entire pipeline coating is electronically inspected to locate and
repair any coating faults or voids.
6. Lowering Pipe in and Backfilling
The pipe assembly is lowered into the trench by side -boom tractors. The trench is
backfilled using a backfilling machine or bladed equipment; no foreign materials are
permitted in the trench.
7. Testing
After backfilling, the pipeline is hydrostatically tested following Federal regulations.
Test water is obtained and disposed of in accordance with applicable Federal, state, and
local regulations.
8. Restoration
NWP's policy is to clean up and restore the work area as soon as possible. After the
pipeline is backfilled and tested, disturbed areas are restored, as nearly as possible, to
their original contours. Revegetation measures are maintained until the area is stablized.
1. Cut vegetation off at ground level, leaving existing root systems in place and remove the
vegetation from the wetland for disposal. Any stream side trees shall be feld away from
any watercourse and shall be directional in order to minimize damage to remaining trees.
2. Limit pulling of tree stumps and grading activities to directly over the trench line. Do
not grade or remove stumps or root systems from the rest of the right-of-way in wetlands
unless the Chief Inspector and Environmental Inspector determine that safety -related
construction constraints require removal of trees from the working side of the right-of-way.
3. Segregate the top one -foot of topsoil from the trench line, except in areas where standing
water or saturated soils are present.
4. Segregate the top one -foot of topsoil from the trench line only in croplands and hayfields.
Vegetation on the working side to be mowed and left in place. Trench spoil will be spread
over the mowed vegetation and "hotlines" for added cover / padding.
5. Salvage topsoil from the trench line in residential areas and/or import topsoil as necessary
to assure adequate reclamation.
6. Construction within waterbodies and wetland drainage features may only occur at the times
stipulated in the Hydraulic Project Approval (as noted in the Seasonal Construction Window above) issued
for the project by Washington Department of Fish and Wildlife. For all flumed crossings, if no water is present
in the streambed at the time of construction, the waterbody or wetland drainage feature may be open cut.
7. Clear vegetation and grade as necessary only within certificated and staked construction limits.
8. Spill Prevention and Control
Hazardous substances, chemicals, fuels and lubricating oils will not be stored within 100 feet
of waterbody banks or wetlands or within 200 feet of water supply wells. Equipment will not be
fueled or maintained within 100 feet of waterbody banks or wetlands or within 200 feet of water
supply wells unless the procedures specified in the SPCC Plan are followed.
9. Stream Bank Matting
Apply matting at all stream crossings. Apply matting at wetland crossings if determined
necessary by the Environmental Inspector.
10. Seed Mixtures
Unless an alternative seed mix is specifically requested by the landowner or land managing
agency, the seed mixtures noted shall be used.
11. Sediment Barriers
Sediment barriers will be installed immediately after initial disturbance of a waterbody,
wetland or adjacent upland. Sediment barriers will be properly maintained throughout
construction and reinstalled as necessary. Where necessary, sediment barriers will be
installed to prevent sediment flow into wetlands or waterbodies.
12. Temporary Slope Breakers / Waterbars
A - Install temporary slope breakers over the backfilled, re -contoured construction right-of-way
as specified in FERC's plan (Section V FI). The outfall of each temporary slope breaker
will be to a stable, well -vegetated area or to an energy -dissipating device at the end of the
slope breakers and off the construction right-of-way. Install temporary slope breakers at the
following spacing:
Slope (percent)
<5
5-15
15-30
> 30
Spacing (feet)
None
300
200
100
See Slope Category Table for category numbers.
B - In active construction areas, repair or replace at the end of each working day. In non -active
construction areas inspect on a weekly basis and repair within 24 hours of each 0.5 inch of
rainfall.
13. Permanent Slope Breakers / Waterbars
A - The frequency of slope breakers will be based on Washington Department of Natural
Resources Forest Practice Guidelines which depends on several factors such as slope,
surface materials, elevation, expected waterfall, topography and experience. As a general
rule, Washington Department of Natural Resources installs slope breakers for any ten -foot
rise or fall in elevation. The Environmental Inspector may modify the spacing based on
site -specific characteristics and the factors specified in the Washington Department of
Natural Resources Forest Practices Act.
B - Construct permanent slope breakers in all areas except agricultural fields, pastures and
lawns.
C - Install slope breakers across the right-of-way with a 2 to 8 percent outslope to divert flow
to a stable area. If a stable area is not present, install an energy -dissipating device off the
edge of the right-of-way.
14. Trench Breakers
A - Spacing and locations shall be installed as shown below unless otherwise directed by the
Environmental Inspector or authorized company representative:
Slope (percent) Spacing (feet)
< 10
None
10 - 15
500
15 - 20
300
20-30
150
> 30
100
See Slope Category Table for category numbers.
B - Trench breakers shall consist of approved sacks filled with a minimum 0.6 cubic feet of sand.
C - Trench breakers shall be keyed into trench sidewall where determined necessary by the
Environmental Inspector or authorized company representative.
D - For each wetland crossed, install a permanent slope breaker and a trench breaker at the
base of slopes near the boundary between the wetland and adjacent upland areas.
Locate the trench breaker immediately upslope of the slope breaker.
15. Silt Fence
A - Install temporary silt fences immediately after initial soil disturbance as necessary.
B - Silt fences must be properly maintained throughout construction (on a daily basis during
active construction) and installed as necessary until replaced by permanent erosion
controls or restoration is complete.
C - Environmental Inspector may substitute silt fence with straw bales in areas where silt fence
may not be suitable to retain spoils / sediment within the construction right-of-way and extra
work space.
D - Environmental Inspector may change the location of silt fence based on field conditions.
E - In active construction areas, repair or replace at the end of each working day. In non -active
construction areas inspect on a weekly basis and repair within 24 hours of each 0.5 inch of rainfall.
16. Straw Bale Sediment Barriers
A- Use wood stakes whenever possible. Steel rebar may be used where soil conditions are
frozen or rocky.
B- In active construction areas, repair or replace at the end of each working day. In non -active
construction areas inspect on a weekly basis and repair within 24 hours of each 0.5 inch of
rainfall.
C- When removing bales, scatter silt over right-of-way.
D- During reclamation if bales are not needed for sediment control, straw may be used as mulch.
E - Place straw bale or pea gravel bag sediment barriers in small intermittent drainages or road
ditches that may convey sediment laden runoff from the right-of-way during storm events.
F - Drive stakes a minimum of 12 inches into ground.
G - Silt fence fabric may be used.
H - Sediment control structures may be placed off the construction right-of-way by hand if the
location has been approved by the Environmental Inspector.
I - Driving around sediment barriers is prohibited. Remove and replace for access to right-of-way.
J - Drivable berms may be used in lieu of straw bale barriers across the construction right-of-way at
wetlands and road crossings.
17. Environmental Inspector
A - The Environmental Inspector will verify the locations of all temporary erosion control measures
and stabilization needs in all areas. The Environmental Inspector will ensure that temporary
erosion controls are properly installed and maintained.
B - The Environmental Inspector will inspect all temporary erosion control measures at least:
- on a daily basis in areas of active construction or equipment operation;
- on a weekly basis in areas with no construction or equipment operation; and
- within 24 hours of each 0.5 inch of rainfall.
C - The Environmental Inspector will ensure that all ineffective temporary erosion control measures
are repaired within 24 hours of identification.
D - The Environmental Inspector must approve the location of all oil, hazardous substance,
chemical storage and fueling areas, other material storage areas and construction equipment
maintenance areas prior to their use.
Temporary Extra Work Areas Necessary to Construct the Auburn Loop Pipeline in the City of Auburn
Number
Milepost
Size (feet)
Size (acres)
Purpose
A-1354-1
1354.32
25 x 100
0.06
Randall Avenue open cut
A-1 354-21
1354.35
25 x 234
0.13
Randall Avenue open cut and Wetland A-8a spoil storage
A-1354-3
1354.37
irregular
0.10
Bowman Creek open cut and equipment staging for move around
A-1354-4
1354.42
25 x 100
0.06
Bowman Creek bore
A-1354-5
1354.64
25 x 100
0.05
53rd Street open cut
A-1354-61
1354.67
25 x 100
0.06
53rd Street open cut
A-1354-7
1354.86
25 x 100
0.07
Bridget Road open cut
A-1354-8
1354.91
25 x 100
0.05
Bridget Road open cut
A-1355-1
1355.10
25 x 318
0.18
Dewater site
A-1355-2
1355.16
95 x 100
0.22
Tie-in
TOTAL
0.98
Construction Right -of -Way Ingress / Egress Points, Roads and Trails
Crossed by the Auburn Loop Pipeline in the City of Auburn
Access Road
Number
Milepost
Station
Road Name
Maintained By
Surface
Type
Crossing
Technique
Used to
Access
Right -of -Way
A-10
1354.34
15317+10
Randall Avenue SE
City of Auburn
Blacktop
Open Cut
Yes
A-9
1354.38
15319+00
Private Drive
Private
Gravel
Open Cut
Yes
A-8
1354.39
15319+00
A-TAR-2
Private
Dirt
Not Crossed
Yes
A-7
1354.44
15322+20
Private Drive
Private
Gravel
Open Cut
Yes
A-6
1354.45
15322+45
Private Drive
Private
Dirt
Open Cut
Yes
A-5
1354.66
15333+40
53rd Street SE
Private
Gravel
Open Cut
Yes
A4
1354.85
15343+20
Private Drive
City of Auburn
Blacktop
Open Cut
Yes
A-3
1354.90
15346+12
Bridget Road
Private
Gravel
Open Cut
Yes
A-2
1354.97
15350+00
Private Drive
City of Auburn
Blacktop
Open Cut
Yes
A-1
11355.16
15359+80
A-PAR-2
Private
Gravel
Not Crossed
Yes
Waterbodies Crossed by the Auburn Loop Pipeline in the City of Auburn
Milepost
Station
Name
Flow Type
Width
(feet)
FERC
Waterbody Type
Crossing
Technique
1354.40
15320+01
Bowman Creek
Perennial
12
Intermediate
Bore
1354.72
1 15336+70
Wetland A-9 Drainage Feature
Fintermiftenti
<3
Minor
Flume
1 For further information please see the waterbodis table contained in the SEPA checklist
Wetland Impacts in the City of Auburn
NRCS Recommended Seed Mixtures for the
Auburn Loop Pipeline in the City of Auburn
Seed Mixture 1 - Upland Areas
Perennial Grasses
Pounds/Acre
Bentgrass
Agrostis spp.
5
Fescue, Fine or Creeping Red
Festuca rubra
10
Fescue, Tall
Festuca arundinacea
10
Orchardgrass
Dactylis glomerata
7
R e rass, Annual or Italian
Lolium multiflorum
10
Timothy
Phleum pratense
2
Legumes
Clover, Red
Trifolium pratense
4
Clover, White
Trifolium repens
4
Trefoil, Birdsfoot
Lotus corniculatus
Annual Cereal Grains and Legumes
Oats Avena sativa
20
TOTAL
14
Seed Mixture 2 - Pastures and Hayfield - Upland Sites
Perennial Grasses
Pounds/Acre
Fescue, Tall
Festuca arundinacea
8
Orchard rass
Dactylis glomerate
25
R e rass, Perennial or English
Lolium perenne
10
Legumes
Clover, Red
Trifolium pratense
3
Clover, White
Trifolium repens
5
TOTAL 51
Seed Mixture 3 - Pasture and Hayfield - Wet Sites
Perennial Grasses
Pounds/Acre
Fescue, Tall
Festuca arundinacea
30
Ryegrass, Perennial or English
Lolium perenne
20
Legumes
Clover, Alsike
Trifolium hybridum
4
Clover, White
Trifolium repens
4
Trefoil, Birdsfoot
Lotus corniculatus
2
TOTAL
60
Seed Mixture 4 - Wetlands
Grasses
Pounds/Acre
Ryegrass, Annual
Lolium multiflorum
20
Barley
Hordeum vulgare
60
Fescue, Fine or Creeping Red
Festuca rubra
5
Hairgrass, Tufted
Deschampsia caespitosa
2
Mannagrass, Western'
Glyceria occidentalis
2
Barley, Meadow
Hordeum Brachyantherum
5
Foxtail Waters
Aleopecurus geniculatus
2
Rice Cut-grassI
Leersia oryzoides
2
Clover, Springbank'
Trifolium wormskjoldii
1 2
TOTAL
1 100
These species may be included in the seed mixture if they are readily available from
a commercial seed supplier.
RECORD OF DRAWING CERTIFICATION
THESE DRAWINGS CONFORM TO THE
CONTRACTOR'S CONSTRUCTION RECORDS.
BY DATE
TITLE/POSITION:
CONFIRMED BY CITY: DATE
PROJECT REF: GRA02-0010
THESE PLANS ARE APPROVED FOR
CONFORMANCE WITH THE CITY OF AUBURN'S
ENGINEERING DIVISION REQUIREMENTS.
APPROVED BY
DATE APPROVED:
Wetland
Milepost
Begin
Station
End
Station
Cowardin
Classification
Wetland
Category
Length of Ditch
Excavated in Weta d (feet)
Acres of Construction
RigWetlandy'n
Acres of Temporary
Extra Work Area and
Access Roads n Wetland
Total Construction
Disturbancein
Wetland (acres)
Acres of Permanent
Wet
ion
Converland sion
A-8 (Bowman Creek)
1354.40
15320+01
15320+01
RUP/PFO
II
0.0
0.00
0.00
0.00
0.00
A-9
1354.72
15336+62
15336+88
RIN
NA
2.2
<0.01
0.00
<0.01
0.00
TOTAL
2.2
<0.01
0.00
<0.01
0.00
For further information please see the wetland tables contained in the SEPA Checklist.
FOR QUESTIONS CONTACT:
CAROLYN LAST
PIC TECHNOLOGIES, INC.
1133 PENNSYLVANIA STREET
DENVER, COLORADO 80203
303-832-1600
Slope Categories
TRENCH BREAKERS
WATERBARS
SLOPE
(percent)
SPACING
(feet)
SLOPE
(percent)
SPACING
(feet)
1
< 10
NONE
1
< 5
NONE
2
10 - 15
500
2
5 - 15
300
3
15 - 20
300
3
15 - 30
200
4
20-30
150
4
> 30
100
5
> 30
100
OWNER:
NORTHWEST PIPELINE CORPORATION
295 CHIPETA WAY
SALT LAKE CITY, UTAH 84108
1-800-453-3810
ENGINEER:
LAURI DUNCOMBE
295 CHIPETA WAY
SALT LAKE CITY, UTAH 84108
1-800-453-3810 EXT. 6509
3 - 2?-03
OS01793