protected a (when completed) navigation protection act ... · protected a (when completed) rdims #...
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PROTECTED A (WHEN COMPLETED)
RDIMS # 9318013 Page 1 of 6
Navigation Protection Act (NPA)
Notice of Works Form PRIOR TO COMPLETING THIS FORM: 1. Determine if your project is on a navigable water listed on the schedule to the NPA. Notice to the Minister is required for works on scheduled navigable waters . Works on non-scheduled navigable waters may be eligible to Opt-in; if requesting Opt-in, the Opt-in Request annex must be included with your Notice to the Minister. 2. Self assess your project against the Minor Works Order and Minor Repairs Order (as appropriate) to determine if a Notice to the Minister is required. Links to the NPA schedule and orders can be accessed through the NPP website at http://www.tc.gc.ca/eng/programs-621.html.
PURPOSE This “Notice of Works” form and its attachments (as well as other relevant information which may be required for a review by TC), once completed and submitted, comprise the Notice to the Minister as required under the Navigation Protection Act. For assistance in completing your submission, refer to the guidance provided on the NPP website under "Apply to the NPP" including the Guide to the NPP’s Notification, Application and Review Requirements.
This form, its attachments and all supporting documentation will be reviewed by a person designated under the NPA. Any false or misleading statement(s) on this form or relating to any document in support of this Notice to the Minister, including concealment of material facts, may lead to refusal to issue Approval or cancellation of an Approval
SUPPORTING DOCUMENTATION REQUIREMENTS Failure to complete all mandatory fields on this form and to provide mandatory supporting documentation, along with a signed copy of this
form, will result in your Notice to the Minister being returned with no further action. Mandatory fields are identified with a “*”.
The following mandatory supporting documentation must be provided. Completed and signed “Notice of Works” form with all mandatory fields completed:
Owner Contact Information
Project Information Related Maps and Drawings:
Map Showing Location of Project
Side/Profile View Drawings with Dimensions
Body of Water Name
Work Site Information
Top/Plan View Drawings with Dimensions
When submitting a Notice to the Minister, owners should note:
All plans and drawings must be legible when printed on 11” x 17” paper
For e-mail submissions, provide a scan of all relevant Supporting Documentation
For hard copy submissions, provide a copy of all relevant Supporting Documentation along with six (6) copies of each map, top/plan view and side/profile view drawing printed on 11” x 17” paper
Notice of Works should be sent to the appropriate regional office as outlined below
TRANSPORT CANADA NAVIGATION PROTECTION PROGAM REGIONAL OFFICE LOCATIONS
Pacific Region Pacific Regional Office 820-800 Burrard Street Vancouver, BC V6Z 2J8 Telephone: 604-775-8867
Email: [email protected]
Prairie and Northern Region Canada Place 1100-9700 Jasper Ave Edmonton, AB T5J 4E6 Telephone: 780-495-8215
Email: [email protected]
Ontario Region 100 South Front Street, 1
st Floor
Sarnia, ON N7T 2M4 Telephone: 519-383-1863
Email: [email protected]
(For info on the NPP and NPA ONLY)
Notices not processed at this office
Headquarters Tower C, 330 Sparks Street, 10
th Floor
Ottawa, ON K1A 0N5 Telephone: 613-990-1036 Email: [email protected]
Quebec Region 401-1550 d'Estimauville Ave, 4
th Floor
Quebec, QC G1J 0C8 Telephone: 418-648-4549
Email: [email protected]
Atlantic Region 95 Foundry Street, 6
th Floor
P.O. Box 42 Moncton, NB E1C 8K6 Telephone: 506-851-3113
Email: [email protected]
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RDIMS # 9318013 Page 2 of 6
Navigation Protection Act
Notice of Works Form
TC File no. (if known):
Are you the riparian property owner?
Yes No
Ministry of Transportation and Infrastructure (MoTI)
1. General Information
*Official and/or local name(s) of body of water.
Site C Clean Energy Project; replacement existing Halfway
River Bridge along the Highway 29 corridor.
Is body of water on the schedule to the NPA?
Yes No Unknown
The Halfway River, a tributary of the Peace River, is a named
water way on the NPA schedule of waterways. This tributary
will become part of the Peace River after Site C reservoir
filling proposed for fall 2032.
Are you also requesting an Approval, if required?
Yes No
Is this an Opt-in Request?
Yes No
Are you representing an Aboriginal group?
Yes No
Is the work near/on First Nations reserve or land claim?
Yes No
Does this project involve throwing or depositing
materials in water?
Yes No
Does this project involve dewatering a body of water ?
Yes No
2. Ownera Contact Information
*Individual or Company Name
Owner Ministry of Transportation and Infrastructure
upon operations. BC Hydro responsible for permitting.
Contact Name:
*Mailing Address
9th
Floor – 1111 West Georgia Street
*City/Town
Vancouver
*Province/Territory
British Columbia
*Postal Code
V6E 4M3
*Primary Phone
604 699 5119
Other Phone :
E-mail:
Owner’s Agent (Contractor/Consultant/Representative/Co-Proponent, if any)
Company Name:
Contact Name:
Mailing Address:
City/Town:
Province/Territory:
Postal Code:
Primary Phone:
Other Phone :
E-mail:
3. Work Site Information
*Nearest Municipality/Country/District
City of Fort St. John
*Province/Territory
British Columbia
PROTECTED A (WHEN COMPLETED)
RDIMS # 9318013 Page 3 of 6
*Site Location such as lot, concession, section, township, range, meridian, 911 address, etc.
The inundation of the Peace River results in the need to replace the existing Halfway River bridge along the
Highway 29 corridor, which is located on a tributary of the Peace River.
The replacement Halfway River bridge area is described as follows:
*Site Position Latitude North
Halfway River
Degrees 56° Minutes 13‘ Seconds 11.3952“
*Site Position Longitude West
Halfway River
Degrees 121° Minutes 26’ Seconds 48.4909“
Hydro Chart #: Not Applicable Topo Map #: 094A03
Body of water details, such as characteristics, bank/bottom features, biological components, flows/tides, etc.
The replacement of the existing Halfway River Highway 29 bridge is required to support Site C reservoir
inundation.
The vertical and horizontal clearance requirements of the replacement bridge have been determined to support
navigation via technical review and are described in section 26 of the environmental impact statement (EIS) for the
Site C Clean Energy Project. Clearances have been reviewed with NPP of TC and final clearances have been
established to support both current and future use of the waterway and tributaries.
A location map, plans and profiles of the Halfway River Highway 29 replacement bridge, and future bathymetry are
provided in the attached NPA Component Application Package. A navigation chart for the future reservoir would
be prepared once the Site C Clean Energy Project is complete.
The assessment of clearances was based on the BC Hydro Site C Clean Energy Project: Navigational clearances for
Highway 29 bridge crossings (refer to appendix A) memorandum, a review of Oregon State recreational boating
guidelines, and follow up discussions with the Navigation Protection Program (NPP) of Transport Canada (TC).
The Site C Integrated Engineering team established navigation clearance envelopes on the basis of providing safe
navigation for recreational boaters and small commercial boats reasonably expected to be navigating the reservoir
or the tributaries. Boat classifications are from the Oregon State Marine Board Policy-Procedures Minimum
Channel Clearance Guidelines for Recreational Boating and are the most likely vessels used on the generic class of
waterway.
Assuming flatwater conditions (as defined by the Oregon guidelines), propeller boats of 27 ft to 40 ft, which
require a 16 ft (4.88 m) vertical clearance, could conceivably be on the reservoir. With 8.0 m of bridge clearance,
and navigation speeds up to 16 km/h, these types of boats most likely to be on the reservoir would be
accommodated, as well as houseboats up to 75 ft (clearance 7.27 m) and sailboats up to 14 ft in length.
A minimum clearance envelope of 10 m x 25 m is provided at the replacement Halfway bridge.
Potential Obstructions, such as natural/man-made, other works, navigation aids, etc.
The closure of the existing bridge and construction of the replacement Halfway River bridge would form a
temporary obstruction during construction as the public boaters must be kept away from active work areas.
No obstructions to navigation will occur after reservoir filling during operations.
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RDIMS # 9318013 Page 4 of 6
The Public Safety Management Plan (PSMP) and supporting boater communication protocols (refer to dam site
work package) will be utilized to inform uses of restrictions to navigation in early years after reservoir filling.
Land Use/Ownership, such as past/current, private/government, rural/suburban, coastal, environmental, etc.
The Halfway River channel and upland area below the replacement Highway 29 bridge to be inundated by the Site
C reservoir is provincial Crown Land with the BC Hydro holding a Licence to Occupy Crown (Licence #816077) for
the work area during bridge construction. Once complete, the bridge ownership, operation and maintenance will
be assigned to the BC Ministry of Transportation and Infrastructure.
4. Body of Water Use Information
Navigation Types (check all that apply)
Commercial Recreational Aboriginal
Max Vessel Size:
Refer to above section regarding design vessel for
replacement bridge.
Traffic Direction (check one)
One-Way Two-Way
Manoeuvrability (check all that apply)
Poor Good Excellent
Day/Night (check one)
Day Night Both
Volume (check one)
Low Med High
Navigation Season(s) (check all that apply)
Winter Spring Summer Fall
Other Uses such as cottagers, special events, fishing, etc.
Recreational and aboriginal use of the Peace River as described in EIS Section 19 – Current Use and Land and
Resources for Traditional Purposes, Section 24 - Harvest and Fish and Wildlife Resources , Section 25 – Outdoor
Recreation and Tourism and Section 26 - Navigation of the EIS as well as a single annual paddle event known as
“Paddle for the Peace”.
The closure and replacement of the Halfway River bridge will not affect the "Paddle for the Peace" event, which
has traditionally been undertaken in July with vessels launched to the Peace River at the Halfway river boat launch
and the final downstream destination of Bear Flat.
5. Project Information
*Type of Work such as bridge, dam, marina, etc.
Construction of permanent new bridge crossing across
the Halfway River.
Refer to Application Package for details on location,
inundated bathymetry and plans and profiles of the
reference concept. Established clearances to
accommodate current and future navigation are noted.
*Related Activities (check all that apply)
Construct Place Alter Rebuild
Repair Decommission Remove
Permanent Temporary
*Brief Project Description (or attach) such as status, structures, operation, etc.
Refer to Application for details.
Highway 29 connects Hudson's Hope to Fort St. John and runs along the north side of the Peace River. It is a two
lane rural arterial undivided highway under the jurisdiction of the BC Ministry of Transportation and Infrastructure
(BCMoTI). Creation of the reservoir will require realignment of approximatley 30km of existing highway at Lnyx
creek, Dry creek, Farrell creek, Halfway river and Cache creek.
Bridges sited at these locations, including the Halfway River crossing described in this Notice of Work, will have to
be replaced and in anticipatation of inundation and potential future use. The vertical and horizontal clearance
PROTECTED A (WHEN COMPLETED)
RDIMS # 9318013 Page 5 of 6
requirements to support navigation, as mandated by the NPA, has been provided in the revised bridge design..
*Method of Construction such as temporary works, activities, etc.
The replacement Halfway River bridge will be constructed as per Ministry of Transportation and Infrastructure
standards and procedures.
Anticipated Impacts, such as source, severity, mitigation, marking, waste/debris mgmt, use, cumulative, etc.
The construction of the replacement bridge would require a temporary navigation closure during construction as
the public boaters must be kept away from the active construction site.
No impacts to navigation will occur after reservoir filling during operations.
*Expected Start Date in yyyy/mm/dd
2019/08/01
*Expected Completion Date in yyyy/mm/dd
2021/12/31
6. Environmental Review Information
Is work located on federal lands?
Yes No Unknown
Is project a Designated Project under CEAA 2012 Regs?
Yes No Unknown
Is project subject to Northern EA Regime(s)?
Yes No Unknown
If yes, which review process(es) are required?
IFA
Mackenzie Valley Environmental Impact Review Board
NLCA
Yukon Environmental & Socio-economic Assessment Act
Other Federal Organizations Involved
Canadian Environmental Assessment Agency
Fisheries and Oceans
Major Projects Management Office
Aboriginal Affairs & Northern Development
Environment Canada
Natural Resources Canada
Northern Projects Management Office
Other: Numerous provincial agencies
7. Supporting Documentation Requirements
Mandatory Information Checklist
(incomplete information will be returned with no action)
Completed and Signed “Notice of Works” form
All mandatory fields completed:
Body of Water Name
Owner Contact Information
Work Site Information
Project Information
Map showing location of project *
Top/Plan Drawing with Dimensions *
Side/Profile Drawing with Dimensions *
* 6 copies if submitting hard copy submission
Recommended Information
(may expedite your review)
Information provided to NWPP as part of EIS review
Body of Water Details
Land Use/Ownership Information
Body of Water Use Information
Impacts, Obstructions and Mitigation Plans
Environmental Review & Settings Information
Operation, Maintenance and Marking Plans
Photographs of Work Site and Body of Water
Aboriginal Consultation Results
Other Government Agencies Contacted
Water Lot Lease Information
Opt-in Request Annex (non-scheduled waters only)
8. Owner Authorization and Certification
I hereby authorize , located at to act on my behalf as my agent in the processing of this application and to furnish, upon request, supplemental information in support of this application.
PROTECTED A (WHEN COMPLETED)
RDIMS # 9318013 Page 6 of 6
I hereby certify the information contained herein is complete, true and accurate to the best of my knowledge and I
am authorized to submit this application.
*Signature:
*Date (yyyy/mm/dd): 2019/4/23
For office use only:
Date Stamp:
The personal information provided on this form is protected under the provisions of the Access to Information Act and the Privacy Act.
a “Owner”, in relation to a work, means the actual or reputed owner of the work or that owner’s agent or mandatory. It
includes a person who is in possession or claiming ownership of the work and a person who is authorizing or otherwise
responsible for the construction, placement, alteration, repair, rebuilding, removal, decommissioning, maintenance, operation,
safety or use of the work. It also includes a person who proposes to construct or place a work.
SITE C CLEAN ENERGY PROJECT
Component Application Package – Halfway River Bridge Replacement
For Navigation Protection Act
April 26, 2019
Submitted to:
Transport Canada
Navigation Protection Program
Suite 1100 - 1166 W Pender Street
Vancouver, BC V6E 2R9
Submitted by:
BC Hydro and Power Authority
Site C Clean Energy Project
9th Floor – 1111 West Georgia Street.
Vancouver BC V6E 4M3
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 Revision 1.1
TABLE OF CONTENTS
List of Tables ........................................................................................................................................ i
List of Appendices ............................................................................................................................... i
1 INTRODUCTION ..................................................................................................................... 1
2 HIGHWAY 29 Realignment Bridge Replacements – Preliminary Construction SCHEDULE ............................................................................................................................. 1
2.1 HALFWAY RIVER BRIDGE REPLACEMENT ............................................................... 2
3 PUBLIC BOATER ACCESS ................................................................................................... 3
4 consultation ............................................................................................................................ 3
List of Tables
Table 1: Preliminary Construction Schedule - Highway 29 Bridge Replacements ................... 2
List of Appendices
Appendix A Overview of Highway 29 crossing over the Halfway River
Appendix B Halfway River Engineering Design Drawings, Plan and Profile Views
Appendix C Halfway River Bridge Crossing Alignment and Arrangement presented in Site C
Environmental Impact Statement
Appendix D Summary of Discussion and Requests for Follow-up, Site C Permitting Forum
Meeting #10, September 11, 2018.
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 1 Revision 1.1
1 INTRODUCTION
The Navigation Protection Act (NPA) came into force on April 1, 2014. The NPA includes a schedule of
navigable waters requiring regulatory approval for works that risk a substantial interference with
navigation. Works required for construction and operation of the Site C Clean Energy Project (the Project)
that occur on, over, under or through navigable waterways as defined by the NPA must be permitted.
The Halfway River is a tributary to the Peace River and is not a named navigable waterway. However, the
Site C Reservoir will inundate a portion of the Halfway River and the Site C Reservoir will be considered a
named navigable waterway as part of the Peace River. The Site C reservoir will inundate the past
location of the Halfway River highway crossing and flow under the proposed replacement bridge. As such
the NPA will apply to the Halfway River Bridge replacement once the Site C Reservoir is formed.
This application package provides an overview of the Highway 29 realignment focusing on construction of
the Halfway River Bridge replacement. This application package is one of a number of separate
application packages that have or will be submitted for Project works requiring NPA approvals. The
construction phase NPA application packages have been generally organized into component packages
by activity, location or timing, including Dam Site Components, Vegetation Clearing, Highway 29 Bridge
Replacements, Reservoir Boat Launches, Transmission Line, and Hudson’s Hope Shoreline Protection.
Future application packages will be submitted to the Navigation Protection Program (NPP) that describe
the other Highway 29 realignment locations and reservoir boat activities over existing or future navigable
waterways scheduling during the remainder of the eight year Project construction period. Please refer to
the NPA Application Package, Dam Site Components – Construction Phase, for a Project description,
which is summarized from Section 4 of the Site C Environmental Impact Statement (EIS).
The bridge design in this application package reflects the Environmental Assessment Certificate (EAC)
amendment issued by the Environmental Assessment Office on October 26, 2018. This amendment
reflected changes to the design of the bridge whereby the bridge causeway was eliminated and replaced
by a longer bridge. A detailed description of the EAC amendment process is provided in Section 4.0 of
this submission.
2 HIGHWAY 29 REALIGNMENT BRIDGE REPLACEMENTS – PRELIMINARY CONSTRUCTION SCHEDULE
The following information on the preliminary construction schedule for each of the Highway 29 bridge
replacements is provided for context to support this application that is specific to Halfway River.
As described in Section 4 of the Site C Environmental Impact Statement (EIS), Highway 29 connects
Hudson's Hope to Fort St. John and runs along the north side of the Peace River. It is a two lane rural
arterial undivided highway under the jurisdiction of the BC Ministry of Transportation and Infrastructure
(BCMoTI). Creation of the reservoir will require realignment of approximatley 30km of existing highway at
Lnyx Creek, Dry Creek, Farrell Creek, Halfway River and Cache Creek. Bridges sited at these locations
will have to be replaced. In anticipatation of the potential future navigation use, the vertical and horizontal
clearance requirements to support navigation, as mandated by the NPA, have been taken into account in
the bridge design.
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 2 Revision 1.1
The preliminary construction schedule for the Highway 29 realignment and bridge replacement is outlined
below.
Table 1: Preliminary Construction Schedule - Highway 29 Bridge Replacements
Bridge Commencement Completion
Halfway River Late Summer / Fall 2019 Fall 2021
Cache Creek Summer 2020 Fall of 2022
Farrell Creek Summer 2020 Fall of 2022
Lynx Creek Summer 2020 Fall of 2022
The construction schedule is indicative only and subject to change. The Purpose of the schedule is to illustrate the general sequence of construction activities, but the dates and schedule may change.
Communication protocols are outlined in this work package for informing users of construction activities
during the approximate two year construction period for each bridge.
2.1 HALFWAY RIVER BRIDGE REPLACEMENT
A location map and map showing bathymetry associated with the Site C Reservoir at the Halfway River
replacement bridge are included in Appendix A, inclusive of a 10m x 25m navigation clearance envelope
specification. Engineering design drawings, plan and profile views are provided in Appendix B.
During the environmental assessment process for the Project, Transport Canada recommended that the
navigation clearance envelope for the Halfway River Bridge be at least 10m tall by 25m wide1. The
Transport Canada analysis also included a recommendation regarding the plan to leave the existing
Halfway River bridge in place:
“Transport Canada requested that the Joint Review Panel recommend BC Hydro
provide a Memo including: a plan and cross section views with dimensions of the
bridges being left in place; those responsible for the bridges and how the
remaining structures will affect the predicted sediment flow; and drawdowns,
filling.”
As advised by Transport Canada, BC Hydro will submit a Notice of Work under separate cover to leave
the existing bridge in place. Transport Canada has also included a requirement to monitor sedimentation
in the Halfway River inundation zone in the NPA permit issued for the dam site (File #2008-500822-001).
The creation of a reservoir will create a series of safe harbours (inundated rivers and creeks) for boaters
and recreational enthusiasts to utilize.2 Navigation aids will be attached to either side of bridge piers that
1 Transport Canada presentation to the Joint Review Panel, Aquatic Environment Topic-Specific Session, Site C Clean Energy
Project. JRP Hearing Exhibit 114, January 13, 2014. 2 For the purpose of this review safe harbours are defined as areas in which safe anchorage can be secured during periods poor
weather
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 3 Revision 1.1
surround the navigation channel to support safe vessel passage through the Halfway River reservoir
embayment.
3 PUBLIC BOATER ACCESS
Construction of the bridge piers near the existing Halfway River channel (i.e., Piers 11 and 12) and
associated overhead works will require temporary closures to boater traffic in the Halfway River section
under the new bridge as well as the boat launch. These closures would be in place for construction tasks
that pose substantive hazards to the public in the immediate area and would last no longer than 7
consecutive days in the April 1 – November 30th period, and 21 days in the December 1 – March 31
st
period. Boater access will be restored for at least 48 hours prior to subsequent river closures.
Communication to boaters ahead of river closures would be done in accordance with conditions in any
issued NPA permit, including use of local newspaper advertisements. All closures and communications
would be done by implementing the Site C Public Safety Management Plan.
4 CONSULTATION
Consultation with Treaty 8 First Nations regarding the Halfway River Bridge to date has focused on BC
Hydro’s amendment to the EAC regarding the bridge design.
Specifically, BC Hydro’s draft request to the EAO to amend the design of the bridge described in the EAC
was provided to Indigenous groups on July 6th, 2018. BC Hydro requested that Indigenous groups provide
comments by July 18th, 2018 and offered to meet to review the draft amendment request. Indigenous
groups were advised that their input would inform the final amendment request to be submitted by end of
July 2018. No comments were received from Indigenous groups on the draft requested amendment.
The final EAC amendment request was submitted to the EAO on July 24th, 2018. BC Hydro presented
this final request to Treaty 8 First Nations at Permitting Forum #10, held in Fort St. John on September
11th, 2018. Responses to questions received from Treaty 8 First Nations in regard to the Halfway River
Bridge EAC amendment arising at the forum were provided to Indigenous groups and the EAO on
January 17th, 2019. These questions and responses are included in Appendix D of this document. On
October 26th, the EAO issued amendment #2 to the Environmental Assessment Certificate, reflecting
design changes to the Halfway River Bridge length.3
BC Hydro will provide information on the construction of the Halfway River bridge to Indigenous groups at
Site C Permitting Forum #12, in advance of applications for required Land Act, Water Sustainability Act
and Forest Act permits. This forum is scheduled for May 2nd
, 2019 in Fort St. John. Transport Canada
has been invited to attend this meeting.
3 The revised design for the Halfway River bridge crossing was also submitted to the Canadian Environmental Assessment Agency
(CEAA) on August 3rd, 2018. In response, CEAA informed BC Hydro the potential adverse effects of the proposed changes would be addressed by mitigation measures and follow-up requirements described in the federal Decision Statement
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 4 Revision 1.1
Indigenous groups will also be consulted on required river closures associated with this application. BC
Hydro will share this NPA application materials with Indigenous groups prior to Permitting Forum #12, and
will meet with any interested Indigenous groups to discuss questions and concerns related to this
application.
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 5 Revision 1.1
Appendix A Overview of Highway 29 crossing over the Halfway River
General arrangement of Highway 29 realignment segment at Halfway River, per revised bridge - Imagery
General arrangement of Highway 29 realignment segment at Halfway River, per revised bridge - Contours
1016-N11-00379-1 R 0Mar 8, 2019Cons truction of the Site C Clean Energy Project is s ubject to required regulatory and permitting approvals.
Date DWG NO
Map Notes:1. Datum: NAD832. Projection: UTM Zone 10N3. Base Data: Province of B.C.4. Imagery: Main Map: ESRI Online Basemapping. Inset Map: LiDAR Acquisition 2015.5. Proposed reservoir area (461.8m maximum normal elevation) from Digital Elevation Models (DEM) generated from LiDAR data acquired July/August, 2006.6. Reservoir elevation 461.8 m does not consider highway realignment.
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Halfway
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Highway 29 Realignment:Halfway River
¬«29
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LegendHighway 29 RealignmentProposed Revised BridgePierAbutmentRiprap
Maximum NormalReservoir Level (461.8 m)!.
!.
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Hudson's Hope
Fort St. John
General arrangement of Highway 29 realignment segment at Halfway River,
per revised bridgeImagery
See Inset - Halfway River Bridge
0 250 500125m
Halfway River
Pier 1Pier 2
Pier 3
Pier 4
Pier 5
Pier 6
Pier 7Pier 8
Pier 9
Pier 10
Pier 11Pier 12 East
Abutment
West Abutment
Halfway River Bridge0 200100 m
Area Within Channel Footprint Area (m2) Pile Cap for Pier 11 163Riprap for Pier 11 1,324
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Map Notes:1. Datum: NAD832. Projection: UTM Zone 10N3. Base Data: Province of B.C.4. Imagery: Main Map: ESRI Online Basemapping. Inset Map: LiDAR Acquisition 2015.5. Proposed reservoir area (461.8m maximum normal elevation) from Digital Elevation Models (DEM) generated from LiDAR data acquired July/August, 2006.6. Reservoir elevation 461.8 m does not consider highway realignment.
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Halfway
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Peace R
iver
Highway 29 Realignment:Halfway River
¬«29
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LegendHighway 29 RealignmentProposed Revised BridgePierAbutmentRiprap
Maximum NormalReservoir Level (461.8 m)Existing Highway 295m Contour1m Contour
!.
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Taylor
Hudson's Hope
Fort St. John
General arrangement of Highway 29 realignment segment at Halfway River,
per revised bridgeContours
Halfway River Bridge
See Inset - Halfway River Bridge
0 250 500125m
Halfway River
Pier 1
Pier 2
Pier 3Pier 4
Pier 5
Pier 6Pier 7
Pier 8Pier 9
Pier 10
Pier 11
Pier 12East
Abutment
West Abutment
435440
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430
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435
Inset Map- Halfway River Bridge0 200100 m
Area Within Channel Footprint Area (m2) Pile Cap for Pier 11 163Riprap for Pier 11 1,324
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 6 Revision 1.1
Appendix B Halfway River Engineering Design Drawings, Plan and Profile Views
Halfway River Bridge No. 1042, General Arrangement – Sheets 1 - 6
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Northern Region
Ministry of TransportationBRITISHCOLUMBIA & Infrastructure
Northern Region
Ministry of TransportationBRITISHCOLUMBIA & Infrastructure
PRELIMINARY
NOT ISSUED FOR CONSTRUCTION
Northern Region
Ministry of TransportationBRITISHCOLUMBIA & Infrastructure
PRELIMINARY
NOT ISSUED FOR CONSTRUCTION
Northern Region
Ministry of TransportationBRITISHCOLUMBIA & Infrastructure
PRELIMINARY
NOT ISSUED FOR CONSTRUCTION
Northern Region
Ministry of TransportationBRITISHCOLUMBIA & Infrastructure
PRELIMINARY
NOT ISSUED FOR CONSTRUCTION
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Northern Region
Ministry of TransportationBRITISHCOLUMBIA & Infrastructure
PRELIMINARY
NOT ISSUED FOR CONSTRUCTION
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 7 Revision 1.1
Appendix C: Halfway River Bridge Crossing Alignment and Arrangement presented in Site C Environmental Impact Statement
Figure 26.3 Highway 29 Realignment section Map 3 of 4 – Halfway River
1016-C14-B6268- R 0Nov. 16, 2012
Map Notes:1. Datum: NAD832. Projection: UTM Zone 10N3. Orthophotos created from 1:40,000 photos taken Sept 10th 2007; 1:15,000photos taken Aug 26th 2011;4. Proposed maximum normal reservoirlevel (full supply level-461.8 m) fromDigital Elevation Models (DEM) generatedfrom LiDAR data acquired July/Aug 2006.
1:25,000
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Peace River
Halfw
ay R
iver
See Inset - Halfway River Bridge
³
Date DWG NO
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!(29
!(97
Index
Taylor
Hudson's Hope
Fort St. John
© BC Hydro 2012 – all rights reserved. This map is for information purposes only and accuracy is not guaranteed.3
480
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460
450
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430
Ele
va
tio
n (
m)
420
Abutment 1 Abutment 2Pier 1
Existing River ChannelApproximateGround Surface
Halfway River Bridge Cross-Section
0 50 m
Pier 2 Pier 3
490
500
ExistingGround Surface
Maximum Normal Reservoir
Minimum Navigation Clearance Envelope (8 m x 25 m)
0 1 km
Figure 26.3Highway 29 realignment
sectionMap 3 of 4 –
Halfway River
!(
!(
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Halfw
ay R
iver
Abutment 1
Abutment 2
Pier 1
Pier 2
Pier 3
Halfway River Bridge0 100 m
Legend
Highway 29 Realignment
Proposed Bridge
Road Embankment
!( Pier
!( Abutment
Maximum NormalReservoir Level (461.8 m)
Depth (m)
0-2
2-4
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6-8
8+
Construction of the Site C Clean Energy Project is subject to required regulatory approvals including environmental certification
Site C Clean Energy Project – Halfway River Bridge Replacement
April 26, 2019 8 Revision 1.1
Appendix D: Summary of Discussion and Requests for Follow-up, Site C Permitting Forum Meeting #10, September 11, 2018.
Appendix D ‐ Halfway River Bridge EAC Amendment ‐ Summary of Permitting Forum #10 Meeting Discussion and Responses to Follow‐up Requests sent to First Nations on January 17, 2019
Comment ID Meeting Date First Nation Project Component File Number or Name First Nation Concern / Question BCH Response
PF10_20180911-52 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked for the difference in height between the water level and the bridge deck.
BC Hydro responded that they would follow up with this information. [See response to PF10_20180911-F08.]
PF10_20180911-F08 9/11/2018 Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
BC Hydro to provide the difference in height between the water level and the bridge deck
The height between the maximum normal reservoir elevation of 461.8m and the underside of the proposed Highway 29 Halfway River Bridge varies between approximately 15m and 25m. There is a range because the proposed bridge is on a curve. This range of heights is subject to change (+/- 10% approximately) as the bridge undergoes final design over the coming months.
PF10_20180911-53 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked whether it would be a concrete bridge. BC Hydro responded that the piers will be concrete, and the current design for the superstructure includes steel girders and a concrete road surface. Bridge engineers are looking at the bridge superstructure as part of the updated design, which will be ongoing for the next 6-9 months.
PF10_20180911-54 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN noted that a lot of maintenance is needed on the Taylor Bridge, which is a similar bridge
BC Hydro responded that the Ministry of Transportation and Infrastructure would develop the maintenance requirements for the new Halfway River Bridge
PF10_20180911-55 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked whether the river bank at each end of the bridge would need to be built up. If so, how much
BC Hydro responded that the banks may need to be built up, in the order of 5m, to provide a smooth transition to the new highway at each end of the new bridge. If required by the design engineers, contractors would need to excavate at the abutments. At the east end, it might be up to 5m of fill, or some excavation. The bridge deck would be about 25m above the reservoir level. BC Hydro committed to follow up to confirm these numbers. [See response to
PF10_20180911-F09 9/11/2018 Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
BC Hydro to provide information on the amount of fill needed above current grade for bridge construction.
The highway and bridge design of the proposed Halfway River Bridge crossing requires in-the-order of 5m of fill be placed on top of the current ground elevation at the proposed west and east bridge abutments. This depth of fill is subject to change (+/- 10% approximately) as the bridge and highway undergo final design over the coming months.
PF10_20180911-56 9/11/2018 SFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
SFN asked why erosion wasn’t taken into account in the 2012 design
BC Hydro replied that when 2012 preliminary designs were made, the project team did not have the benefit of the geotechnical information from investigations that just recently took place. A reasonable and conservative design was presented in the EIS based on what was known at the time. BC Hydro clarified that the change in design isn’t being driven by erosion, but the geotechnical investigations revealed a bedding plane that we did not know about at the time of preparing the 2012 design.
PF10_20180911-57 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked how deep the bedding plane is at Halfway River
BC Hydro responded that it was between 5m and 30m below the surface. Engineers have identified firm bedrock beneath this plane.
PF10_20180911-58 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
Re: slide 47, DRFN mentioned one of the questions from the EAO Working Group meeting; can you speak about the wave action on the peninsula. Is the fill on the peninsula going to be sufficient to resist the wave and current?
BC Hydro flipped to slide 46, showing the bridge’s western abutment. BC Hydro noted that the detail of the erosion protection on thie highway approaches to the bridge isn’t yet developed. BC Hydro’s consultant is working on that detail presently.
PF10_20180911-59 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked whether it was premature to start working on the bridge without this information. The geotechnical makeup of this area should mean that this information would be important.
BC Hydro replied that the development of the highway design, bridge design and erosion protection details are all being done concurrently, and all with the benefit of input from the geotechnical engineers
PF10_20180911-60 9/11/2018 HLFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
HLFN noted that after the study is done, the bridge size may change in the updated design.
BC Hydro replied that the geotechnical investigations are complete and we know that riprap for erosion protection and/or excavations will be sufficient. We just don’t have the detail on the riprap sizing yet, but that will be confirmed through detailed design: the riprap required by the design may be in the the 250kg to 500kg (per rock) range, but we’re not presently certain how the riprap will be graded or how high up the bank it will go. This detail is currently under development, and we’re working with MOTI on this
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Appendix D ‐ Halfway River Bridge EAC Amendment ‐ Summary of Permitting Forum #10 Meeting Discussion and Responses to Follow‐up Requests sent to First Nations on January 17, 2019
Comment ID Meeting Date First Nation Project Component File Number or Name First Nation Concern / Question BCH Response
PF10_20180911-61 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked if BC Hydro could explain what’s been discovered from the geotechnical information.
BC Hydro replied that it has not yet received a written report regarding the geotechnical investigations from its geotechnical engineering consultant
PF10_20180911-62 9/11/2018 SFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
SFN asked if there would be a boat launch here. BC Hydro replied that a boat launch was not proposed for the Halfway River area, and that efforts would be made to keep the current Halfway River boat launch accessible until inundation.
PF10_20180911-63 9/11/2018 HLFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
HLFN asked whether the road would need to be kept away from the bank
BC Hydro responded that the realigned highway would be located a safe distance from the edge of the bank and built to modern provincial highway construction standards
PF10_20180911-64 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN asked what the options would be if geotechnical investigations show that the current design isn’t possible.
BC Hydro replied that, depending on the nature or result of the geotechnical investigations, one consideration may be to lengthen the bridge.
PF10_20180911-65 9/11/2018 DRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DRFN expressed concern because this area isn’t stable, and asked whether any attention had been paid to the impact of seismic activity on the bridge itself.
BC Hydro replied that the bridge will be designed to withstand seismic conditions.
PF10_20180911-66 9/11/2018 DTFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DTFN asked about the Bennett Dam and the spillway redesign that had taken place. During this redesign, BCH had indicated a 5km safety zone or buffer was needed between the dam and seismic activity. DTFN mentioned that new data was showing that the safe zone should be 10km. DTFN noted they asked a similar question when the Site C spillway was redesigned – are there safeguards in the planning cycle of the dam with respect to a safe zone around the dam
BC Hydro’s engineer responded that he was part of the roads and highways team and did not have the background on the Bennett Dam related to this. BC Hydro noted that they have a lot of geotechnical data which has directly informed the design of the bridge. With respect to a “safe zone” from fracking, BC Hydro noted that they expect MOTI would provide guidance regarding any fracking restrictions close to this bridge.
PF10_20180911-68 9/11/2018 SFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
SFN asked if there had been any new archaeological assessment work done related to the road and bridge
BC Hydro responded that all assessment work had been done within the highway alignment and bridge footprint
PF10_20180911-69 9/11/2018 HRFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
HRFN asked for the timelines of the EAO decision. BC Hydro’s summary of EAO’s comment: EAO replied that they were currently drafting the amendment assessment report, and hoping to get that out to the working group by the end of September. They were looking to get the report to the decision maker in October. BCH noted that they believe they have the information needed to proceed with the design
PF10_20180911-70 9/11/2018 DFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DFN asked about rare plants in this area and whether there would be any impacts.
BC Hydro turned on the rare plants layer in Google Earth, showing two occurrences of rare plants in the road/bridge footprint. BC Hydro indicated that provincially-listed rare plants that will be impacted by road construction are incorporated into the rare plant translocation program.
PF10_20180911-71 9/11/2018 DFN Highway 29 - Halfway River
EAC Amendment - Halfway River Highway 29 Replacement Bridge
DFN asked about fish habitat enhancement in the area and whether there was any work happening in the tributaries.
BC Hydro responded that the tributaries mitigation opportunities evaluation project had reached out to the nations for feedback. BCH had heard from BRFN representatives on the overflights used to select candidate sites which will happen this month (September). This information will help refine some of the ground surveys for identifying candidate sites for tributaries
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