HomeMy WebLinkAbout030-737-30-3301-LUP-2022-281 Michelle Harris
From: Doug Casina<DOUG.CASINA@enbridge.com>
Sent: Tuesday,April 4,2023 9:22 AM
To: Michelle Harris
Cc: Jay Kozlowski;Michelle Meyers-Weirgor-030;Adam 1.Birr
Subject: RE:LUP 22-281,Enbridge Energy
Attach ments: I mag e_001.pdf
CAUTIOnI This email originated from outside of the organization.Do not click links or open attachments unless you recognize the
sender and know the content is safe. _ _
Hi Michelle,
I am notifying you that the proposed maintenance work on LN6A at MP81.9 and authorized under the attached Sawyer
County permit has been cancelled. No related work activities were initiated and Enbridge will be executing a different
maintenance scope in the near future. The Enbridge environmental advisor supporting that new work will be in touch
with you and/or Jay on fulfilling Sawyer County permitting requirements.
Please do not hesitate to contact me with any questions.
Rega rds-
Environmental Advisor
Anomaly Maintenance Program—US Liquids
ENBRIDGE
CELL:218.355.0808
11 E.Superior SL,Suite 125,Duluth,MN 55802
enbridqe.com
en bri da eoa rtners.com
Safety.Integrity.Respect.Inclusion.
From:Michelle Harris<michelle.harris@sawyercountygov.org>
Sent:Monday,August 1,2022 8:40 AM
To:Michelle Meyers-Weirgor-030<weirgorclerk@gmail.com>;Doug Casina<DOUG.CASINA@enbridge.com>;Adam 1.
Birr<ABirr@barr.com>
Subject:[External]LUP 22-281,Enbridge Energy
ICAUTION!EXTERNAL SENDER
Were you expecting this email?TAKE A CLOSER LOOK.Is the sender legitimate?
DO NOT click links or open attachments unless you are 100°/o sure that the email is safe.
They're doing routine pipeline maintenance.
Michelle Harris
Sawyer County Zoning Administrative Assistant
10610 Main Street,Suite#49
i
Hayward, W154843
michelle.harris(�sowyercountvpov.orq
ph: 715-638-3366
SAWYE R
COUNTY
This message is from an external email source. Do not click links or open attachments unless you are certain the content
is safe. If you have any doubts or concerns about an email, don't hesitate to contact Sawyer County IT.
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Sawyer County Application for Grading �D
�UL 2 6 2022 � 10610 Main St. Suite 49 ��
— —J Hayward WI 54843 �
.�iAINYEFi C�:il:."+T':' 715/634-8288 `�
ZONING ADMfyiSTRA�fOPI `�
�l-�
CONSTRUCTION SHALL NOT BEGIN UNTIL ALL REQUIRED PERMITS HAVE BEEN c�;
ISSUED. SIGNATURE OF PROPERTY OWNER IS REQUIRED. o-�
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Douglas Casina; Enbridge Energy, '.
Owner.Limited Partnershi Easement ContractorTBD �
Mailin Address:1409 Hammond Avenue Mailin Address: ;5
Cit , State,Zi :Superior, WI, 54880 Cit , State,Zi : Y
Phone:218-355-0808 Phone: �
m
�
Email:Doug.Casina@Enbridge.com Email: �D
O �
SISB BCIdf255: �ine 6A,Milepost 81.9960 o'Po� �
W �
O
Calculate grading area:(Total area disturbed including excavation,fill,grading, -�� �
landscaping,equipment rutting,andlor other areas vegetation will be removed resulting y'� -�
in exposed soil) � `�''
J
S �
Determine width of disturbed site in feet: ft. x depth of disturbed site in feet ft. (�
Total= sq.ft (thls is the area calculation) U c
Determine Slope of disturbed area:Vertical height in feet +Horizontal distance in � W
feet = Slope X 100= %Slope � W
(1 V/1 H=Slope X 100= Percent Slope) � �
'For any Tlling or grading of any area which is within 300 feet landward of the ordinary T�
high water mark(OHWM)of navigable water and which has surface drainage toward the 5
water and on which there is either: �S
(1) Any Tlling or grading on slopes of more than 20%. `-��
(2) Filling or greding of more than I,000 sq.ft.on slopes of 12°/,20°/a. �
(3) Filling or grading of more than 2,000 sq.ft.on slopes less than 12%. �`'
(4) A Grading Permit is required for any fllling or grading in excess of 10,000 sq.k m
within 1,000'OHWM of navigable lakes,ponds,or flowages OR within 300'of OHWM of �
navigable rivers or streams. �
�
Date activity will begin if permit is issued:s�mme�zozz date to be �c
COmpIBiBd:Summer 2022
ANach engineering design or complete the following using additional sheets:
1. Describe proposed erosion control installation,wnstruction phases,and finished site grading. v,
Include timeline, methods, and materials. (Silt Fence alone is not ample erosion control for �
most sites) �
D
$ee attachetl Figure 3 antl project tlesctlptioa �
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2. List temporary seed type and rate, permanent seed type and rate,fertilizer type and application rate "
(rf applied),and mulch type and application rate.
See atlac�e0 project descnp�ion,res�ora�ion procedures,and rypiral flgures.
3. Attach a plot plan of project area including location of any wetland(s)and/or waterway(s)(indicate
area between grading project and water body to be left undislurbed), location of excavated material,
location of all storm water and erosion control Best Management Pradices(BMP's), property lines,
existing drainage, post grading drainage pattern,and north arrow. (Silt Fence alone is not ample
erosion control for most sites)
See Figure 3
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6IWGLEEROIIDM � COMROLPUX
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4. Ariach a cross sedional view of project area including the existing and proposed slope of the bank,
water level of any existing waterway, and honzontal and vertical scale.
Cross-sectionai view nol available.The wateiway measures approximately 6 feet wide by 4 feet tleep,vnth a water level tlepth of epprozimetely
05 tee�taken on fi/16R 1.T�e slope of�he waterwey banks is estimatetl to be>20%.
Initial below
DC All BMP's and erosion control devises will be inspected weekly and after rainfall of Yi or
greater within 24hr period.
DC In accordance with the Sawyer Counry Zoning Ordinance section 4281(Adverse Effects On
Adjacent Properties). I hereby declare that the construction and/or grading permitted under
this pertnit will not affect or interfere with neighboring properties drainage pattems.Any change in
drainage patterns which are determined to be detrimental to neighboring properties will be
corrected at the expense of the property owner referenced on this permit.
The undersigned certifies that the listed information and intentions are true and correct,that all work
shall be pertormed in compliance with the requirements of the Sawyer County Zoning Ordinance
and the laws and regulations of the State of Wisconsin. The undersigned person(s)hereby give
permission for access to the property for onsite inspection.
�,._�,�� (.\`ti�_
���
Origin3 Signature of property owner(or agent with Power of Attorney).
PermitFee: $�00
Rev-1/2020
tel 715.398 4504
ENBRIDGEEnvironmental Advisor cell 218.355 0808
Doug.C2sina@enbridge.com 1409 Hammond Avenue
Superior, WI 54880
JUIy 20, 2022
Jay Kozlowski
Zoning and Conservation Administrator
Sawyer County Zoning and Conservation Department
10610 Main Street, Suite 49
Hayward, Wisconsin 54843
Re: Land Use Permit Application — Shoreland
Grading Permit Application
Enbridge Energy, Limited Partnership
Line 6A, Milepost 81 .9960
Sawyer County, Wisconsin
Dear Mr. Kozlowski:
Enbridge Energy, Limited Partnership (Enbridge) is submitting Sawyer County Land Use
(Shoreland) Permit and Sawyer County Grading Permit applications and supporting materials for
approval to conduct maintenance work within 300 feet of an unnamed tributary to Swan Creek at
the location referenced above.
Enclosed for review please find the completed permit applications, supporting information, and a
check for the $100 application fee from Barr Engineering Co. on behalf of Enbridge. Please send a
copy of the permit authorization to me at Doug.Casina@enbridge.com and Adam Birr (Barr
Engineering Co.) at ABirr@barr.com. Please send any hard copy authorization to:
Barr Engineering Co.
Attn: Adam Birr
325 South Lake Avenue, Suite 700
Duluth, MN 55802
If you have questions about the information presented in this permit application, please contact
me at (218) 355-0808 or Adam Birr at (218) 788-6366.
Sincerely,
�
,� �
Douglas Casina
Environmental Advisor
Enbridge Energy, Limited Partnership
Enclosures: Land Use Permit (Shoreland) application
Grading Permit application
Supporting Information
A check for$100
Cc: Adam Birr,Barr Engineering Co.
�
Supplemental I nformation
Enbridge Energy, Limited Partnership
Maintenance Work in Weirgor Township, Sawyer County, WI
Line 6A, Milepost 81.9960
Project Description
Enbridge Energy, Limited Partnership (Enbridge) plans to conduct maintenance activities on one
segment of their existing Line 6A pipeline at Milepost 81.9960 in Township 37N, Range 7W,
Section 30 of Sawyer County, Wisconsin (Figure 1). The project footprint is unavoidably located
within 300 feet of an unnamed tributary to Swan Creek. Enbridge plans to conduct this work in
the summer of 2022. Work at the site is expected to be completed within 7 to 14 days.
Access to the site will be south from West County Road, then traveling southeast via an existing
two-track road to the Enbridge right-of-way (ROV� and continuing southeast along the ROW to
the site (Figure 2). The access route for the proposed maintenance work will cross an unnamed
tributary via a temporary clear span bridge (TCSB; Figure 3). To construct the TCSB, construction
mats will be set across the tributary. Construction mats will be used as ramps on the sides of the
bridge. No fill will be used to construct the bridge. The bottom of the lowest beam of the clear
span bridge will be at or above the top of the stream bank. The bridge and mats will be anchored
to prevent them from being transported downstream during high flow conditions, as needed.
Construction mats will be utilized to minimize wetland impacts along the access route and within
temporary workspaces.
The project scope will require excavation in order to inspect the pipeline and make any
necessary repairs. The excavation will measure approximately 24 feet long by 20 feet wide and
to a depth of 6 feet. The excavation will extend into an unnamed tributary to Swan Creek. The
waterway measures approximately 6 feet wide by 4 feet deep, with a water level depth of
approximately 0.5 feet taken on 6/16/21. If water is present, flow within the tributary will be
temporarily diverted by a either a flume or dam and pump bypass method. Subsoil and
topsoil will be segregated into separate piles. Temporary workspace and staging areas will
be used for vehicle parking and equipment staging. Equipment used will include a hydrovac
excavator, a backhoe (or similar excavator), and trucks to transport personnel and equipment.
Best management practices (BMPs)will be installed prior to soil disturbance and in accordance
with the Enbridge Environmental Protection Plan (EPP). Refer to attached site plan (Figure 3)
and typical figures included in the application for additional details. BMPs will be maintained by
Enbridge personnel, as necessary.
Dewatering of the excavation may be required and will be conducted according to WPDES
General Permit No. WI-0049344-05-0 for dewatering operations.
Upon completion of the work, backfilling will begin immediately and the site will be restored to
preconstruction conditions. Excavated subsoil will be backfilled first and then the topsoil to
maintain the original soil horizons. Excavated areas in wetlands will be backfilled with topsoil
originating from the wetlands. Backfill material from the waterway will consist of the spoil material
excavated from the parent streambed. The bed and banks of the unnamed tributary to St. Louis
River will be restored to as near as practicable to pre-construction conditions unless that slope is
determined to be unstable. If Enbridge determines that the slope is unstable, the banks will be
reshaped to prevent slumping. Once the banks are reshaped, BMPs will be installed immediately
after backfilling. By restoring the original contours, existing flow patterns through the tributary will
be maintained. Upon completing bank stabilization, the coffer dams will be removed to resume
natural water flow. TCSB and construction mats will be removed. Temporary crossings and
workspaces in wetlands will be allowed to revegetate from the native seed stock. A cover crop
will be utilized in wetlands as necessary. All disturbed areas will be seeded and temporarily
stabilized with straw mulch or erosion control blanket, depending on the site conditions. Refer to
the attached restoration procedures for information regarding regrading, seeding and general
restoration practices.
Following completion of the work, it may be necessary to complete additional restoration work
(e.g., additional grading, removal of BMPs, seeding, etc.). Temporary, non-biodegradable
sediment control BMPs will be removed from the site after vegetation has been established.
Enbridge will obtain landowner approvals for temporary staging and workspace areas located
outside of Enbridge's ROW. All landowner approvals will be in place prior to beginning work.
Restoration Procedures
Routine Maintenance Work
Enbridge Energy, Limited Partnership has an Environmental Protection Plan (EPP), which
outlines environmental policies, procedures, and mitigation measures developed for pipeline
maintenance projects. The EPP is intended to mesh with applicable federal, state and local
environmental protection and erosion control specifications and practices. The EPP outlines
general procedures for site restoration.
Site restoration will begin as soon as soil conditions permit seed bed preparation and seed
germination. Every effort will be made to begin site restoration, including installation of
permanent erosion control measures, as soon as practicable.
Final cleanup will begin with removal of all construction-related debris and material which is not
an integral part of the pipeline (including litter generated by pipeline crews) from the
Landowner's property. After clean up is completed, the disturbed areas shall be graded to
restore the contours of the land to previous conditions. After final grading, slopes in areas other
than cropland will be stabilized with permanent erosion control structures, as described below.
Slopes
Permanent berms (diversion dikes or slope breakers) will be installed on all slopes, according to
the following maximum spacing requirements:
Slope (%) Approximate Spacing (ft)
5 —15 300
>15 - 30 200
>30 100
Permanent berms will be constructed according to the following specifications:
• Permanent berms will be installed with a 2 to 8 percent outslope.
• Permanent berms will be constructed of compacted earth.
• The outfall of berms will be directed toward appropriate energy-dissipating devices, and
off the construction right-of-way if possible.
• Permanent berms will be inspected and repaired as necessary to maintain function and
prevent erosion.
• Erosion control blanket (curlex, jute, or equivalent) will be placed on slopes over 30
percent.
Revegetation
Permanent revegetation will involve preparing the seedbed and seeding disturbed areas. The
right-of-way will be seeded as soon as possible after backfilling, weather and soil conditions
permitting. Specific seed mixes, application rates, and seeding dates will take into account
recommendations of appropriate state and federal agencies and landowner requests as
appropriate. Mulch will be applied according to the following specifications:
• After seeding, slopes greater than 5 percent or dry, sandy areas will be mulched with 2
tons per acre of straw or hay or as otherwise directed by Enbridge.
• All areas of dormant seeding must be mulched with 2 tons per acre of hay or straw or as
otherwise directed by Enbridge.
• Mulch will be anchored after placement to minimize loss by wind and water. If soil
conditions allow, a mulch anchoring tool or farm disc set in the straight position will be
used to crimp the mulch to a depth of 2 to 3 inches. Liquid tackifiers may be used with
advance written approval from Enbridge.
Where conditions allow (e.g., unsaturated and un-ponded areas), wetlands will be revegetated
after final grading with annual ryegrass and then allowed to revegetate naturally, unless
otherwise directed by regulatory agencies.
Permanent revegetation at stream crossings will take into consideration recommendations of
agencies as well as landowner requests.
All soil conservation practices (such as terraces, grassed watenvays, etc.) that are damaged by
the pipeline maintenance activities will be restored to previous conditions to the extent practical.
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: ,.,
s, � �z
f."� $ � ���� Soil Stockpile
�. .,� � �. .�,�j�"�' ' �
� �� __ Temporary Bridge(40'x 20')
��` __
` 4"� � � � :?"' �Temporary Workspace(425'x
�� �� � �� �`" ��,° � � 80')
"�''`` ;t:
�"��° � � ��`�� � ����� � � .�.���� � Approximate Wetland Extent
�� � � � � a� ' r . —
"�� , 10 Foot Contour
� �, � � � .�
� � �" .r � � 2-Foot Contour
� � " �'b: �.s�_ `,� �=
s�
t !�� � .` �,� +��..� N
�� �.; �,.�. �1 �.:.#p ,:w� �� �,�
�;�� a� ;�� �, � ; ! :r 0 60 120
,,,
�,� �p
�r �, � �
� �; Q.
� ,�.,2� Feet
: �, ,��; �.� � �.
r, u ..
Environment Notes: '���*0 1 Inch = 60 Feet
1.All work,access,and staging within wetland will utilize �`� ��;
construction matting or be completed under irozen ground '����!i FIGURE 3
conditions. `�" r"�; ,�.�;�'
SITE PLAN
2.Location of soil stockpiles are approximate.Site conditions wiU �'� Line 6A
determine final locations.
3.Sediment Control BMPs as described in the Enbridge EPP will be Milepost 81.9960
utilized to minimize impacts to wetlands and waterways. "�
Confidential and Critical ENBR/DGE
4B.�SPS conditions will determine final selection and placement of E11e1'gy 111f�8St�UCtU1'@ I�fOPIT18ti0�
B�rtFoobr.ArcG1510.8.1.3032�7-1512�.35Fil�:l\CN�M�EnEritl�ErHrpy\1rWrY�OrNn\DIpN191601181NbM Ortlen\49161516.11 MPUL Mitlwea�Eepoa�re>ProjecrM�p�lVJaconsin\l6A 81 9960_Soecia115�wy�r Gounty_P�rmdLLBA B7 9960 SM Pbn.mxEUfer.ww
I r�� n.��
t I �
t
.$n.::ra`in."`�`ina?IIYYr � � �
t � �� �, ���: � . �
f `^^ �` ri`" POTENTIAL
�.;- - � .
. �i , �" I DEWATERING I
��� °�� � �� ' ' i WORKSPACE,SEE �
`j i. �l` I
FIGURF. 19 AND/OR ZO I
- ..�! ' I I
t .,
-- -.��. . . �`. � � � �, J
..-
-.�.�_. ••:.
,
;„ ,.F,i:,�#' ��i.� �
��.sr+i�'.A� w` ...
� :;.�h }������� ,�a.�T
.. ;=:;f;, ..i _ . ,
x
PIPELINE DEwATERING -�
HoSE
�Y�
� �
� �
( �
� - - - - - � r - - - _ ,
� ,
� � �I f 30'-40'�--�—�
W ORKSPAC E
BOUNDARY � DEWATERING I
INTAKE I
I LOCATION,
ASNEEDED
ISUBSOIL WILL BE I
�EXCAVATION — STOCKPILED NEAR �
\/ THE EXCAVATION
I ,,a WITHIN ECDS,AS
I NECESSARY
I O ... �
I � .... . . . . . . � I
.:.•.•.•.•.: .•.•.•.:.
.,.,... .
'�'�'�'�' '� ' ' ' '�' MINIMUM ONE(��
(
.•.•.•.•.•.• . . . . .
.•.•.•.•.•.• .•.•.•.•.
•••••••••••• ••••••�•• FOOT SEPARA7ION
.•.•.•.•.•.• .;.;.;.;.
.•.•.•.•.•.• '
. . . . . . :....:c.: .--. - I MUST BE
I \ MAINTAINED
BETWEEN TOPSOIL
I -� AND SUBSOIL OR A
NOTES; O I PHYS[CAL BARRIER
l. EROSION CONTROL DEVICES WILL BE � O I SHOULD BE USED.
PLACED AROUND THE DISTURBED I I I �
WORKSPACE,AS NECESSARY. I I
Z. EROSION CONTROL DEVICES WILL BE � I
PLACEDACROSSWORKSPACE L � � � �� �� � � � � � STOCKPILE
ACCESS AT THE END OF EACH DAY. � � TOPSOIL
3. DEWATERING INTAKE WILL BE I � SEPARATELY
LOCATED TO M[NIM[ZE SEDIMENT WORKSPACE ��!� FROM SUBSOIL
UPTAKE AND SUSPENDED 12-INCHES
OR MORE FROM THE TRENCH PIPELINE
BOTTOM(FIGURE ZO�.
Scale: NTS
Figure 4 Date: 3it 0/20��
Environmental Protection Plan
EIYBR/DGE Typical Maintenance Excavation Revised: 4/27/2017
Plan View Location M:�Departmen�Tasks�EPP
Figures w�Horders�LP ENG EPP Figurcs�
�-
,..- - • -�: - _
�,;g�-- - -�,;, � '�,e,, ..
�yr. ��' ,,+�� ;,p ��, '� -t "
- °. �•�.�';-„
�* ;;,����..�.:. -
�t.,,,,,� -.,
� . ,`, _
w NOTE:TRENCH BOXES CONSIST OF TWO
r
' r� . STEEL PLATES THAT HOLD UP THE SIDES OF
�R'f �; �' d AN EXCAVATION.
- �•�� ., '� � THE PLA7ES ARE HELD IN PLACE BY STEEL
'� ���..f �`'� �� � BRACES.
:� . .r. i»
�
'�, •\ .. ;,�.�,Y � g � _
. `� ,.y,` ��
� ~ �� '• � . ���.t'�'>>. �^,�,� . .
- E,.�,�'� . �� �� - � � �
e _
— PIPI�I.I\II
� TRENCH
-/ BOX �'
- TRENCHBOX
: � EXCAVATIOti :�
O �
:::Q �
[:c�i Q
. . . . . . . . . . . . . . . . PIPELIXE —,
PLAN:TRENCH BOX PROFILE:TRENCH BOX
SUBSOIL � TOPSOIL � VEGETATION
CONSTRUCTION MATS --
(AS REQIIIRED)
7kENCH BOX
Torsc�i
: � : :
:�:�:�:�:;i�i�::�:�:f:�:��� �:�::::�.�.�.�.�.�:�.�.�:�`�:'.':'.i.:::'::::::::::::::::::::::::::c:::::::::::::::::::::::::::;::::::`::::'''::
:�:EXISTING PIPELINE'.-�--`=-'f''':",'�'•'•'�'•'•'•'•'�'•'•"•'•'•'•'�'�'�'•':'-':'•':'.'•'•'•'•'
::�:SUBSOIL�:;:;:;:;:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:
� TO BE REPAIRED:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:�:::-:�:�:�:�:�:�:�:�:�:�:�:::�:�:�:•:•:�:•:•:•::::::::::::::::::::::::::::::::::::::::::::
PROFILE: TRENCH BOX
Scale: NTS
F�GU� 5 Date: 3/]0/2017
ENBRIDGE ENVIRONMENTAL PROTECTION PLAN Revised: 4/27/2017
TYPICAL TRENCH BOX
Location: At:`,Departmem Tasks\EPP
Figures wBorders\LP ENG FPP Figures\
SILT FENCE PLAN(NTS�
FAS"CENER-MIN.NO. 10
GAGE WIRE 4 PER POST
REQUIRED(TYP.�
8'Mnx(Tvr.}—� �6'Mnx�Tvr.)--►I
�
r ��
MESH SUPPORT qq�� FILTER Min
6'�SQUAR6(MAX.) FABRIC
18"Mw. 18"Mrta.
Tvr. Tve.
ELE ATION
ELEVATION S[LT FENCE WITHOUT SUPPORT PLAN
SIL?FENCE WITH WIRE SUPPORT PLAN
FILTER STEHL OR FILTER
FABRIC DIRECTION WOOD POST FABRIC DIRECTION
OF FLOW � OF FLOW
UNDISTURBED UNDISTURBED
GROUND LINE /— GROUND LINE
� � /C
6"M�N. 3��MIN.W'IRE 6"M�N.
MESH IN TRENCH
—i� � COMPACTED —►I �— COMPACTED
6"M�v. $ACKFILL 6"M�N. BACKFILL
I I i i
FABWC ANCHOR DETAIL FABRIC ANCHOR DETAIL
SILT FENCE WITH WIRE SUPPORT PLAN SILT FENCE WITHOUT SUPPOR7'PLAN
Nores:
1. WIRES OF MESH SUPPOR"I SHALL BE MIN.GAGE NO.�2.
2. FILTER FABRIC SHALL MEET THE RHQUIREMENTS OF THE SPECIFICATION WITH EQUIVALENT
OPENING SIZE OF AT LEAST 3O FOR NONWOVEN AND SO FOR WOVEN.(SIEVE NO.)
3. TrIE POSTS USED TO SUPPORT THF SILT FENCE SHOULD BE HARDWOOD MATERIAL WITH A MINIMUM
CROSS SECTIONAL AREA OF 4 INCHES SQI;ARE AND 4 FEET LONG. METAL POSTS SHOULD BE USED
IN AREAS THAT POND WATPR.
ATTACHING TWO SILT FEN('ES
F�LTee
FABRIC
STEP 1
� FILTER
POSTS FABRIC
STEP 2
S7'EP 3
Nores:
1. PLACE THE END POST OF THE SECOND FENCE INS[DE THE END POST OF THE F1RST FENCE.
2. ROTATE BOTH POSTS AT LHAST 18O DEGREES IN A CLOCKWISE DIRECTION TO CREATE A
TIGHT SEAL N'ITH THE FABRIC MATERIAL.
3. DRNE BOTH POSTS A MIMMUM OF 1H WCHES IN THP GROUND AND BURY THE FLAP.
Scale: NTS
Figure 6 Date: si2s/2ooi
Environmental Protection Plan Revised: 3/28/2017
E/�BR�DGE Typical Silt Fence Installation ,��a,;��,,,,�,.„�,��,,.,,,t,p,;E�2,�,,,�R,p
I:�ti F.PV i����irc.
BALES PLACED
ON EDGE
BUTTED T1GHT
$ILT FENCE �
1
� HARDWOOD STAKE
STRAW BALE (4'LONG,2"BY 2")
\ r'
C0:�1PACTED -�-
G.ARTH FILL
Ft=' Ft=. �
���.
�>. � — — —
4jw
e�g �, �, ��
�,� '�;� �� x,� �� 6��MIN.
�
STRAW BALES AND SILT FENCE STRAW BALES ONLY
Scale: NTS
Figure 7 Date: 10/28/2016
Environmental Protection Plan Revised: 3/28/2017
ENBRIDGE Typical Straw Bale Installation
��.,,..� ,,,�..�m,,,.�.�,�,,��n=.���„
F.�,,�.�,,���
NOTE:SLOPE SURFACE SHALL BE
�•�/\ vNNll� SMOOTH AND FREE OF ROCKS,
�y�y� y�/ LUMPS OF DIRT,GRASS AND STICKS.
FILL SLOPE SECTION �YW/� �T�t�' MAT'SHALL BE PLACED FLAT ON SURFACE
EROSION CONTROL BLANKETS SHOULD \1r /� TO ENSURE PROPER SOIL CONTACT.
BE 1NSTALLED VERTICALLY DOWNSLOPE. � /
/
/O /
/ �
O �
/ p o
� o �
b i o
i �
o� Q
/ � o
� p o 4'
i 6 � � -2�
� � 3'Ow:ei.nv
0 k()I.I,'17�RMINN.
� o � � 1
o'
o� o ]_
MIN OVERLAP 6�� -
DIRT SH.ALL BE
p TAAIPED PRIOR TO
Id L.41'ING TOP LAP OVER
ToE
MAINTAIN SLOPE ANGLE �� BERM
-'� -- TRENCH INTO BERM AND
PROGRESS DOWNSLOPE
STREAM CHANNEL
EROSION CONTROL BLANKETS SHOULD BE
INSTALLED HORIZONTALLY WITH STREAM
FLOW'.
MIN OVERLAP 6"
: 0
DIG W UPSTREAM O � Q O
EDGE
� � 0 O
0 ��
� 0 ;�
0 ———_ 0
0 ———_____ �:�'::::::::::::::::�:�: :�>::�:�::�:�:
� _ i:.::E�re�o uo����ro:�;:�::�:
• :;.;�:.
�.'.6>:�:;:;:;W',41�f'R S EDGE :::::.
0 �•:;•:{•}
STREAM 0
F _
L�W
'��_:.;
�_ ..
�
Scale: NTS
Figure 8 Date: 11/3/2016
Environmental Protection Plan Revised: 3/28/2017
E���'��� Typical Erosion Control Blanket Installation �.�•����»�.����.�•F�PF;���wH�ti�TM��
r�-c err r�e�R,
Plan View SraenM CHnNr.eL
a � � 9
m p ,
SUPPORT - '� '
(IF NEEDED TO SUPPOR7' a Y����.:
EXISTING GRADE,SEE �;. F � � '�� � SIDE BOARDS/
NOTE#3) / FOAM TRIANGLES
;
/ i
_.._.._.._.. _ l �
.._.._.._.._
...... ...... ........ �
WOOD RAMP �
(SEE NOTE 2)
HAUL ROAD
F�ow
�3� ) 1 3 I �
S � MIN.
SEDIMENT CONTROL — I
\\\ I�-15'MIh.
DEVICE � � �
Profile View � TRAVEL LANE SEDIMENT BARRIER
SIDE BOARDS/ ��
TIMBER MAT OR OTHER — FOAM TRIANGLES � � � TIMBERMAT REYED
WOOD RAMP �\ PORTABLE SPAN . � � � RJTO BANK
(SEE NOTF.2) � � '
��, SUPPORT
(IF NEEDBD TO SUPPORT
EXISTING GRADE,SEF
NOTE#3)
P�v�vOOD
� 3'-4'—i I5'n-t�.
�there will be no support � c���ERT s��FBOA,�s
P \N�tPnnr�v (Foa suPaoar) � (See NOTe 8)
GEorexT��e �
FABRIC
GEOTEXTIL[
FABRIC
NOTES:
1. INSPECT BRIDGE OPENING PERIODICALLY AND FOLLOWING RAINFALLS 6. THE BRIDGE MUST SPAN FROM TOP OF OHWM.
OF OVER%z". REMOVE ANY DEBRIS RESTRICTING FLOW AND DEPOSIT IT 'J, ADDITIONAL SUPPORT MUST BE ADDED ON TOP OF BAVK.AND CVDER
AT AN UPLAND SITE OUTSIDE OF FLOODPLAIN. SPAN IF INITIAL SUPPORT STARTS TO SETTLE.
2. IF PHYSICAL CIRCUMSTANCES PROHIBIT WOOD OR METAL RAMPS, $. SIDEBOARDS WILL BE INSTALLED ON TEMPORARY BRIDGES TO MWIMIZE
EARTHEN RAMPS MAY BE USED AS APPROVED BY ENBRIDGE. THE POTENTIAL FOR SEDIMENT TRANSPORT. SIDEBOARDS MAY BE
3. INSPECT BRIDGE ELEVATION SO BRIDGE REMAINS SUPPORTHD ABOVE CONSTRUCTED OUT OF PLYWOOD,OR EQUIVALENT,AND AFFIXED TO
OHWM AND DOBS NOT SINK MTO BANK. THE OUTER SIDES OF THF BRIDGE. GEO-TEXTILE FABRIC,OR
4. THE CULVERT SUPPORT MUST BE ANCHORED TO THE STREAM BOTTOM EQUNALENT,MUST ALSO BE ADEQUATELY SECURED TO TNE UNDERSIDE'
AND MAY NOT BE SUPPORTED WITH FILL. OF THE BRIDGE TO PREVENT MATERIAL FROM FALLING THROUGH THE
S. EARTHEN RAMP CANNOT BE"IALLER THAN I'AND CANNOT EXTEND FOR BRIDGE DECK. THH GEO-TEXTILE FABRIC OR AN EQUNALENT SHOULD
MORE TH.4N 1S�ON EITHER SIDE OF THE CROSSING. BE SECURED TO THE BOTTOM OF THH BRIDGE AND WRAPPED AROUND
THE SIDEBOARDS IN A CONTINUOCS FASHION.
Figure 12 Scale: NTS
Date: 11/16/2016
Environmental Protection Plan
ENBRiDGE Revised: 3/28/2017
Typical Span Type Bridge
I.xauo2�i�.Ik�onn���it�I�a.kz1-PPFip�imulL.N.�nI.P
With or Without Instream Support °,°E�eFi�°n�
TEMPORARY COhSTRUC710N �
RIGHT-OF-WAY BOUNDARY I
1
--- � -\ ------
N TES: �
I. ONLY WOODY VEGETATION MAY BE FLUSH CUT � �
DURING INITTAL CLEARING. BUFFER IN PLACE SEDIMEKT CONTROL DEVICES
UNTIL PIPELINE CROSSING. 2O' ?O'
2. SO�ATWS SETBACK FROM ORDINARY MGH BUFFER BUFFER _
WATER MARK(OH WM)EXCEPT IN UPLAND MINIMUM MINIMUM
AREAS OF CULTIVATED OR ROTATED CROPLAND JI � SEGREGATED STREAM
OR OTHER DISTURBED LAND. / BED SPOIL
UPSTREAM DAM �
� �� ""'��- SECONDARY
� CONTAINMPNT
SEGREGATED STREAM � /
BED SPOIL PUMP
��
E
� � BACK-UP PGMP
PROPOS[U IRESCfI � ��
- � -- -
� PROPOSI'D PIPEI.IAE �
_ � ( _
C SPOIL SPO[L
�� � �
PLACE SEDIMENT BARRIERS
TEMPORARY BRIDGE
ACROSS WORKING SIDE OF
ROW AT THE END OF EACH (IF NEEDED) �
DAY
CULVERT
(FOR SUPPORT)
.- TEMPORARY 20� \ � ;\�-20 DOWNSTREAM
BUFFER
CONSTRUCTION BUFFER INIMUM DAM
�� RIGHT-OF-WAY � MINIMUM
BOUNDARY � � ENERGY
'� O-?S� 0_25� DISSIPATOR
-��-�=� �� � � , _.._.._
� ) J�
5�� 5��
SPOIL SETBACK /� SETBACK SPOIL
FROM ORDINARY HIGH WATER � / FROM ORDINARY HIGH WATER
,_� MARK � � MARK , - ,.. ..
_ .�;,, . . ..
ADDITIONAL TEMPORARY � (� � ADDITIONAL�TEMPORARY
WORKSPACE WORKSPACE
NECKDOWN TEMPORARY CONSTRUCTION
ROW BY 0-25�BEGINNING 25'BACK
FROM ORDINARY HIGH WATER MARK
Figure 15 Scale: NTS
Environmental Protection Plan Date: 11/14/2000
ENBR/DGE Typical Waterbody Crossing Method Revised: 3/28/2017
Dam and Pump Method '.`°�""""�`�'�.�`'Fr�`"���PCN`�"
�:>�,FPP�;E�rt.
TEMPORARY CONSTRUCi�ION - � (
RIGHT-0E-WAY BOUNDARY I I
1\
— — � -- ------
NOTES: I
I. NO CLEARING UNTIL TIME OF CROSSING. ONLY 1\
WOODY VEGETATION MAY BE F[.USH CUT DURING
1 � SEDIMEN7 CONTROL DEVICLS
INITIAL CLEARING. 20� 20'
2. SO'ATWS SETBACK FROM ORDINARY HIGH BUFFER BUFFER
WATER MARK(OHWM�EXCEPT IN UPLAND MINIMUM �MINIMUM
AREAS OF CULTIVATED OR ROTATED CROPLAND � ` SEGREGATED STREAM
i
OR OTHER DISTURBED LAND. I 1 BED SPOIL
WATER DAM I �_ _
-� v �)
SEGREGATED STREAM . / /
BED SPOIL ,�4 � O�E OR MORE FLUMES
��s' + I � MAY BE UTILIZED
i
PRONOSED IREV'CII
� f
�— -- - —,-- - � _ _PROPOtiGD PIPL'LI?��1' ��
----_
C SPOIL — � - SPOIL �
—� °e; �(`'j ' — —
II
PLACESEDIMENTBARRIERS ----�--�---
TEMPORARY BRIDGE
ACROSS WORKING SIDE OF
ROW AT THE END OF EACH (iF NEEDED�
DAY
CULV ERT �
(FOR SUPPORT)
� TEMPORARY 20'-� � \ ;\i--zO�
-' � BUFFER .
� CONSTRUC'TION - BUFFER INIMUM =
RIGHT-OF-WAY MINIMUM
BOUNDARY —..�..— �—..— —�� .—�
/ �-25' 0-25'
_ _�`_ � _.._.._
�� J j
� �� � SQ' �
SPOIL � SETBACK �� SETBACK SPOIL
FROM ORDINARY HIGH WATER / FROM ORDINARY HIGH WATER
Mnwc � � MARK
ADDITIONAL TEMPORARY � �� � ADDl7'IONAL TEMPORARY
WORKSPACE W'ORKSPACE
NECKDOWN TEMPORARY CONSTRUCTION
ROW BY 0-25'BEGINNING 25'BACK
FROM ORDINARY HIGH WATER MARK
Figure 16 Scale: NTS
Environmental Protection Plan Date: 11/14/2000
ENBRIDGE Typical Waterbody Crossing Method Revised: 3/28/2017
Flume Method �.w,���.,,�.,�m,r,.�.,,„�;��mw,�..N..��v
1\ci I�PPFiFum
DEWATERING DISCHARGE IN
WELL VEGETATED UPLANDS
� ���� -�_
�, � x�.:
�
, ";a. _ _ ___ __ _ T__ _
WELL VEGETATED x'�� ��' �
UPLAND AREA .�',""•. � i NOTES:
� <..�
. � I. PUMP INTAKE HOSE MUST BE SECURED
�� AT LEAS7'ONE FOOT ABOVE THE
�'�'--x �- � TRENCH BOTTOM.
/ 2. DEWATER INTO FILTERING
� MECHANISM.
� �
/
. DISCHARGE HOSE
��" _;;a,
.._..,. _- .�.. . ;�
�
R� /
SECONDARY
CONTAINMENT INTAKE HOSE
/ /
/ /
GEOTEXTILE FILTER BAG
GEOTEXTILE FILTER
BAG MADE OF NON-
WOVEN FABRIC
12'
� METAL HOSE
"--' � � F[TTING INSIDE
16� ' /�— BAG OPENING
J,
. 1
,
i.
i
Nore:
L FLAG FILTER BAG LOCATION SO SECURED WITH
THAT BAG CAN BE RHMOVED. CLAMP
Scale: NTS
Figure 19 Date: 11/21/2016
Environmental Protection Plan Revised: 3/28/2017
ENBR/DGE Typical Dewatering Measures ,,�.��o:,,,,�,„��,,.,,,,:�pF;��m W,�.,�rs�p
�.�,�P�t,��R,
�
� �
� �
� �
x � � �
� "a 0 Y
� �
� �
� � 0
� �
� �
� � �
� � �
� � - � �
� � �
� � � �
� � � �
� � � �
� � � I�
PUMP INLET � � � �
� � �
Fi onr � �
� �
� �
INTAKI:�
�
��� S�nNu-orrCncr% I
— Scae�N
(seE Hun;»4)
PERSPECTIVE VIEW
�p;..
SILT FENCE
� --------- ----------
EOTEXTILE
I I fi I I FILTER FABRIC I I
Z �
� � � �_____ 1 _______ � � - � �
OPTION I OPTIOV 2
D�WATERING STRUCTURE SIZING GUIDANCE
N TE '
TYPICAL PUD1P CONTINUOUS MINIMUM 1. ARRANGE THE STRAW BALES TO THE X AND Y DIMENSIONS
PUMP SIZE �`TES DISCHARGE STRUCTURE REQUIRED TO ACCOMMODATE ANTIGPATED PUMPING RATES.
GALLONS PER RATE CAPACITY SEE DEWATERING STRUCTURE SIZING GUIDANCE.
MiNure(GPM)' GPM X*Y*Z=Cus�c Feer
Z. LINE ENTIRE tiTRUC7URE WITH GEOTEXTILE FILTER FABRIC.
1.5-1NCH 90-120 100 1600
2-INCH 90-300 15O 2400 3. SILT FENCE ENDS MUST BE WRAPPED TO JOIN TWO SECTIONS.
3-MCH 3OO-8OO 2OO 3200 4. INSTALL SILT FENCE 2-MCHES ABOVE TOP OF STRAW BALE,
4-INCH 400-1300 250 4000 AND ANCHOR A MINIMUM OF 8 INCHES STRAIGHT DOWN.
6-MCH 400-1800 3OO 4800 S. SILT FENCE POST STAKING MUST BE 4-FEET OR LESS.
Bnsr:uuvM�N�n�cr�nues'cFNFe��. 350 5600
irvr��kMnnon:�'[�ecKvoMrMnNun�. 6. DEWATERING INTAKE HOSE MUST BE SUPPORTED A7'LEAST I-
rnk Mow-iNroeMnnov. 4OO 6400 FOOT FROM BOTTOM OF i'RENCH BEING DEWATERED.
7. FILTER BAG N'ITHIN THE BASIC STRUCTURE IS OPTIONAL
BASED ON S1TE-SPECIFIC PARAMETERS AND/OR CONSTRAINTS.
Scale: NTS
Figure 2 �ate: i ii23/2oi6
ENBR/DGE Environmental Protection Plan Revised: 3/28/2017
Straw Bale Dewatering Structure
�I I�c�nnmrn�Tn.kr 1-P�tipu�cs wBoNm I.Y
1��-��'i�l'I'I�:Eum