N-3NSPI (CA) RIR-1 to 18 - Redacted
37 passages
Environmental & Project Description for Construction Activities Sheet Harbour Hydro System Ruth Falls Dam Refurbishment 2020 CI 50518 CA IR-5 Attachment 1 Page 13 of 35 Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and En...
AI summary The document provides an environmental and project description for the Ruth Falls Dam Refurbishment under the Sheet Harbour Hydro System in 2020. It includes details related to construction activities and is part of a larger application or report.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km2 . Presently th...
AI summary The Sheet Harbour Hydro system in Nova Scotia consists of multiple reservoirs and generating stations, including Malay Falls and Ruth Falls, with a total drainage area of 573.9 km2. The system includes six controlled reservoirs and has a total generating capacity of 10.6 MW. Appendix A provides a map of the system.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Bathymetry - 3. Ruth Falls Plan View CI 50518 CA IR-5 Attachment 1 Page 21 of 35
AI summary This section of the document provides an overview of the hydro system, including maps and bathymetry data related to the Sheet Harbour Hydro System and Ruth Falls. It includes visual representations of the system's layout and geographical features.
CI 50518 CA IR-5 Attachment 1 Page 28 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description APPENDIX C – ENGINEERING DRAWINGS CI 50518 CA IR-5 Attach...
AI summary The document includes a page from a regulatory proceeding related to the Sheet Harbour Hydro System and the Ruth Falls Dam Refurbishment Project. It references engineering drawings and is part of a larger submission, with a redacted portion indicating confidential information.
1.1 Site Details The Ruth Falls Dam (the Dam) is located in the community of Sheet Harbour on the Eastern Shore of Nova Scotia (Drawing 1, Appendix A). The dam is located in the Malay Falls Flowage, which is a flowage of East River. The da...
AI summary The Ruth Falls Dam, constructed in 1922-23, is located in Sheet Harbour, Nova Scotia. It includes a concrete spillway, earthen berm, generating station, canal, and fishway. The dam provides power to the surrounding area and is situated in the Malay Falls Flowage of the East River.
Appendix B 2007 Report: Vegetation Surveys at the Sheet Harbour Hydroelectic System
AI summary This document is an appendix containing a 2007 report on vegetation surveys conducted at the Sheet Harbour Hydroelectric System.
REPORT Vegetation Surveys at the Sheet Harbour Hydroelectic System NOVA SCOTIA POWER INC. PROJECT NO. 1026751
AI summary This report details vegetation surveys conducted at the Sheet Harbour Hydroelectric System by Nova Scotia Power Inc. under Project No. 1026751.
PROJECT NO. 1026751 PROJECT TO Nova Scotia Power Inc. PO Box 910 Halifax, Nova Scotia B3J 2W5 FOR Vegetation Surveys ON Sheet Harbour Hydroelectric System October 25, 2007 Jacques Whitford 3 Spectacle Lake Drive Dartmouth, Nova Scotia, B3B...
AI summary This document outlines a project by Nova Scotia Power Inc. to conduct vegetation surveys on the Sheet Harbour Hydroelectric System, with Jacques Whitford as the contracted service provider. The project was submitted in October 2007.
CI 50518 CA IR-5 Attachment 7 Page 1 of 103 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Addendum Sheet Harbour Hydro System Ruth Falls Dam Refurbishment 2021 Construction and Monitoring Activities
AI summary This document provides an addendum related to the Ruth Falls Dam Refurbishment project in Sheet Harbour Hydro System, detailing 2021 construction and monitoring activities. Specific details are redacted due to confidentiality.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km2 . Presently th...
AI summary The Sheet Harbour Hydro system consists of multiple reservoirs and generating stations, including Governor, Sloane, Marshall, Malay Falls, and Ruth Falls. The system has a drainage area of 573.9 km2 and includes generating stations with capacities of 3.6 MW and 7.0 MW. The system's layout and mapping are detailed in Appendix A.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Plan View CI 50518 CA IR-5 Attachment 9 Page 25 of 55 CI 50518 CA IR-5 Attachment 9 Page 26 of 55 Figure 3. Ruth Falls Plan View
AI summary This section of the document provides an overview of the Hydro System, including a map of the Sheet Harbour Hydro System and a plan view of Ruth Falls. It includes several figures and attachments related to the hydro system's infrastructure.
7. Site Specific a. This approval is for the installation of new sluice gates and control building on the Ruth Falls Dam, located on the Sheet Harbour Hydro System in Sheet Harbour, NS. The sluice gate work involves replacing the three exi...
AI summary This section approves the installation of new sluice gates and a control building at the Ruth Falls Dam on the Sheet Harbour Hydro System. The work involves replacing existing steplog bays with screw stem vertical lift gates.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km 2 . Presently t...
AI summary The Sheet Harbour Hydro system in Halifax County includes six controlled reservoirs and two generating stations, Malay Falls and Ruth Falls, with capacities of 3.6 MW and 7.0 MW respectively. The system spans a drainage area of 573.9 km² and includes various reservoirs and headponds connected by power canals.
4.2 Contingency Planning The hydrological information provided in the application submission references the Sheet Harbour system flood study, which was completed as part of NS Power's dam safety program in addition to the system dam safety...
AI summary The text discusses contingency planning related to the Ruth Falls Dam refurbishment, referencing a flood study conducted as part of NS Power's dam safety program. The study contains confidential information and is not typically shared in watercourse alteration applications.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Plan View - 3. Ruth Falls Reservoir Bathymetry
AI summary This section provides an overview of the hydro system in Nova Scotia, including a map of the Sheet Harbour Hydro System, a plan view of Ruth Falls, and a bathymetry map of the Ruth Falls Reservoir.
CI 50518 CA IR-5 Attachment 11 Page 32 of 34 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project and Environmental Description APPENDIX C – PROPOSED WATER MANAGEMENT STRUCT...
AI summary This section of the document describes the proposed water management structures for the Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project, including an appendix detailing the structures. The content is part of a regulatory proceeding and contains confidential information that has been redacted.
PROJECT DETAILS In order to accommodate refurbishments at the Ruth Falls Reservoir, the water level in the headpond will be dropped from a full supply level of 109.25 ft down to 91 ft. The headpond will remain lowered for a period of appro...
AI summary The Ruth Falls Reservoir's water level will be lowered from 109.25 ft to 91 ft for about 9 months to accommodate refurbishments at the headpond.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km 2 . Presently t...
AI summary The Sheet Harbour Hydro system, located in Halifax County, includes six controlled reservoirs and two generating stations, Malay Falls and Ruth Falls, which produce 3.6 MW and 7.0 MW of power, respectively. The system's drainage area spans 573.9 km², with historical and current reservoir configurations detailed.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Plan View - 3. Ruth Falls Reservoir Bathymetry
AI summary This section provides an overview of the hydro system in Nova Scotia, including maps and bathymetry data for specific sites such as the Sheet Harbour Hydro System and Ruth Falls Reservoir.
CI 50518 CA IR-5 Attachment 19 Page 5 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description NS Power Updated Submission June 22, 2020 NSECC Incomple...
AI summary This document outlines the timeline of submissions and responses related to the Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project, including multiple updates from NS Power and incomplete letters from NSECC.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km 2 . Presently t...
AI summary The Sheet Harbour Hydro system in Nova Scotia includes six controlled reservoirs and two generating stations, Malay Falls and Ruth Falls, which produce 3.6 MW and 7.0 MW of power, respectively. The system spans across Halifax and Guysborough counties and includes fish passage structures at the Ruth Falls dam to support aquatic life.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Plan View - 3. Ruth Falls Reservoir Bathymetry
AI summary This section provides an overview of the hydro system in Nova Scotia, including maps and bathymetry data for specific locations such as the Sheet Harbour Hydro System and Ruth Falls Reservoir.
CI 50518 CA IR-5 Attachment 19 Page 38 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description APPENDIX B – SITE PHOTOS
AI summary This section of the document provides an overview of the Ruth Falls Dam Refurbishment Project in the Sheet Harbour Hydro System, including an appendix with site photos. The content includes a reference to a redacted page and an image placeholder.
CI 50518 CA IR-5 Attachment 19 Page 44 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description APPENDIX D – ENGINEERING DRAWINGS CI 50518 CA IR-5 Atta...
AI summary This document is an engineering drawing from the Ruth Falls Dam Refurbishment Project in Sheet Harbour, Nova Scotia. It is part of a larger regulatory proceeding and includes an appendix with technical illustrations related to the hydro system.
5. American Eel ( Anguilla rostrata ) Silver Stage Downstream Passage With the recent focus on the American eel, NSPI has been asked to review potential options for improving the effectiveness of the louvers to bypass downstream migrating...
AI summary NSPI is reviewing options to improve the effectiveness of louvers for downstream migrating American eels. Studies show that while louvers provide suitable attraction flow velocities, the bypass channel's design allows eels to move back upstream, potentially reducing the effectiveness of the bypass system. This is due to the presence of stop log weirs and changes in water velocity.
Overview The Sheet Harbour Hydro system, including generation at Malay Falls and Ruth Falls has been providing clean, renewable electricity to Nova Scotians for nearly one hundred years. The system requires maintenance and upgrades to ensu...
AI summary Nova Scotia Power plans to refurbish the Ruth Falls Main Dam starting in 2024, involving the replacement of stoplog bays with rubber inflatable dams and sluice gates. The project requires regulatory permits and includes a habitat offsetting initiative for Atlantic Salmon, in partnership with the Mi'kmaw Conservation Group and NS Salmon Association.
CI 50518 CA IR-5 Attachment 21 Page 5 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description
AI summary The document discusses the Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and its environmental description. It includes a redacted image and is part of a regulatory proceeding in Nova Scotia.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km 2 . Presently t...
AI summary The Sheet Harbour Hydro system, located on the East River in Halifax County, has a drainage area of 573.9 km² and includes six controlled reservoirs. The Ten Mile Reservoir was previously controlled but had its dam removed in 2012.
CI 50518 CA IR-5 Attachment 21 Page 12 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description Figure 1: Construction Sequencing Gantt Chart
AI summary This document discusses the Ruth Falls Dam Refurbishment Project in Sheet Harbour Hydro System, including a construction sequencing Gantt chart. It provides an environmental description and includes figures related to the project.
CI 50518 CA IR-5 Attachment 21 Page 26 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description
AI summary This document discusses the Ruth Falls Dam Refurbishment Project in Sheet Harbour Hydro System and includes an environmental description. The text is part of a regulatory proceeding and contains a redacted image related to the project.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Plan View - 3. Ruth Falls Reservoir Bathymetry
AI summary Appendix A provides an overview of the Hydro System, including the Sheet Harbour Hydro System Map, Ruth Falls Plan View, and Ruth Falls Reservoir Bathymetry.
CI 50518 CA IR-5 Attachment 21 Page 38 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description
AI summary The document discusses the Ruth Falls Dam Refurbishment Project in the Sheet Harbour Hydro System, including environmental considerations and visual representations of the project.
CI 50518 CA IR-5 Attachment 21 Page 44 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Photo 5. Upstream of Ruth Falls Dam facing northeast
AI summary The document includes a redacted page from a regulatory proceeding, featuring a photo of the upstream area of Ruth Falls Dam facing northeast. The content is confidential and not fully disclosed.
CI 50518 CA IR-5 Attachment 21 Page 226 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description APPENDIX F – Hydraulic Modeling Report
AI summary This section of the document discusses the Ruth Falls Dam Refurbishment Project in Sheet Harbour Hydro System, including an appendix with a hydraulic modeling report. The document is part of a regulatory proceeding and contains confidential information that has been redacted.
5. American Eel ( Anguilla rostrata ) Silver Stage Downstream Passage With the recent focus on the American eel, NSPI has been asked to review potential options for improving the effectiveness of the louvers to bypass downstream migrating...
AI summary NSPI is reviewing options to improve the effectiveness of louvers for downstream migrating American eels. Studies show that while louvers provide suitable attraction flow velocities, the bypass channel's design allows eels to move back upstream, potentially reducing the effectiveness of the bypass system. This is due to the presence of stop log weirs and changes in water velocity.
Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description APPENDIX K – Fish Passage Detailed Designs
AI summary The document includes Appendix K, which details fish passage designs related to the Ruth Falls Dam refurbishment project in the Sheet Harbour Hydro System. It also includes a figure illustrating fish passage designs.
CI 50518 CA IR-5 Attachment 21 Page 439 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description APPENDIX L – ACCDC Report
AI summary This document discusses the Ruth Falls Dam Refurbishment Project under the Sheet Harbour Hydro System, including an appendix with an ACCDC Report. The content is redacted and contains confidential information.
N-6NSPI (NSUARB) RIR-1 to 13 - Redacted
25 passages
A. BRIEF COMPANY OVERVIEW Elliot Excavators Limited (Elliot) was incorporated in March, 1988. Our head office and repair shop is located at 103 Park Road in Elmsdale, Nova Scotia. Scott Haverstock is the president and owner of Elliot. Elli...
AI summary Elliot Excavators Limited, incorporated in 1988, has a long history of working with Nova Scotia Power Inc. on various projects, including excavation, pipeline replacement, and hydro projects. The company owns a fleet of heavy equipment and has agreements with labor unions. It is recognized as a contractor in good standing with relevant associations.
5.0 LOCATION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km2 . Presently there...
AI summary The Sheet Harbour Hydro system is located on the East River in Halifax County, with a drainage area of 573.9 km2. It includes six controlled reservoirs and two generating stations, Malay Falls and Ruth Falls, which produce 3.6 MW and 7.0 MW of power, respectively. The document references appendices with mapping, photos, and engineering drawings, as well as property and GPS details.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Reservoir Bathymetry - 3. Ruth Falls Reservoir Location of Structures CI 50518 NSUARB IR-12 Attachment 2 Page 24 of 50
AI summary This section of the document provides an overview of the hydro system, including a map of the Sheet Harbour Hydro System, bathymetry of the Ruth Falls Reservoir, and the location of structures within the Ruth Falls Reservoir.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km2 . Presently th...
AI summary The Sheet Harbour Hydro system, located on the East River in Halifax County, includes six controlled reservoirs and two generating stations: Malay Falls (3.6 MW) and Ruth Falls (7.0 MW). The system's drainage area spans 573.9 km², with the Malay Falls and Ruth Falls power canals directing water flow to the generating stations and ultimately into the East River.
5.0 LOCATION The Sheet Harbour Hydro System is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The hydro system has a drainage area of 573.9 km 2 . Presently...
AI summary The Sheet Harbour Hydro System is located on the East River in Halifax County, with several reservoirs and generating stations. It includes six controlled reservoirs and two generating stations, Malay Falls and Ruth Falls, with capacities of 3.6 MW and 7.0 MW, respectively. Mapping and engineering details are provided in appendices.
Table 6: Residual Harm from Potential Impacts Associated with the Ruth Falls Dam Refurbishment Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish
AI summary The table outlines potential residual harm from the Ruth Falls Dam refurbishment, focusing on impacts to fish and measures to mitigate serious harm. It highlights environmental concerns related to the project.
Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish Potential effects on upstream fish passage due to change from stoplog controlled to vertical lift gate sluiceway and stoplog controlled For better wa...
AI summary The text discusses the potential effects of refurbishing the Ruth Falls Dam, specifically the change from stoplog controlled sluiceway and overflow spillway sections to vertical lift gates and rubber dam sections. It highlights the potential impact on upstream fish passage and the measures to mitigate serious harm, with no residual harm anticipated.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Reservoir Bathymetry - 3. Ruth Falls Reservoir Location of Structures
AI summary Appendix A provides an overview of the Hydro System, including a map of the Sheet Harbour Hydro System, bathymetry of the Ruth Falls Reservoir, and the location of structures at Ruth Falls Reservoir.
1.0 INTRODUCTION The Sheet Harbour Hydro system is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The system has a drainage area of 573.9 km 2 . Presently t...
AI summary The Sheet Harbour Hydro system, located in Halifax County, includes six controlled reservoirs and two generating stations, Malay Falls and Ruth Falls, with total capacities of 3.6 MW and 7.0 MW, respectively. The system spans a drainage area of 573.9 km² and includes several reservoirs and headponds connected by power canals.
3.3 IMPROVEMENTS TO DOWNSTREAM EEL PASSAGE The dam contains a louver/fish bypass system located in the canal for the downward migration of fish. The louvre system is made up of a series of removeable louvres (vertical slats) designed by DF...
AI summary The document discusses a study conducted by NS Power in 2010 to evaluate the effectiveness of a louver/fish bypass system at a dam in diverting American eels away from the power canal. The study found that 57% of tagged eels reached the estuary, with 1/3 diverted through the bypass and 40% of undiverted eels surviving the turbines. Improvements to the system are being considered.
2.0 BACKGROUND The Ruth Falls Hydro System dam is located 5 km north of the Town of Sheet Harbour, at latitude 44.95541° N and longitude -62.50016 ° W. The dam is located on the East River Sheet Harbour, downstream of Ruth Falls Flowage. T...
AI summary The Ruth Falls Hydro System dam is located near Sheet Harbour. NSPI plans to lower water levels upstream by 5.5 metres for maintenance in mid-July 2022, returning levels to historical pre-impoundment conditions.
7.0 LOCATION The Sheet Harbour Hydro System is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The hydro system has a drainage area of 573.9 km 2 . Presently...
AI summary The Sheet Harbour Hydro System is located in Halifax County, with reservoirs and generating stations that contribute to its power production. The system includes several reservoirs and two generating stations, Malay Falls and Ruth Falls, with capacities of 3.6 MW and 7.0 MW respectively. Appendices provide additional details, and GPS coordinates are given for the Ruth Falls Dam.
10.1 Eel Study In 2009 and 2010, NSP completed tagging studies to assess the downstream movement of two migrating species at the Ruth Falls Dam: Atlantic salmon smolts and American eels. The intended outcome of the studies was to determine...
AI summary In 2009 and 2010, NSP conducted tagging studies at Ruth Falls Dam to assess the efficiency of the louver diversion system for downstream fish passage, specifically for Atlantic salmon smolts and American eels. The studies found similar efficiency estimates of approximately 30% for eels using different techniques.
Table 8 - Residual Harm from Potential Impacts Associated with the Ruth Falls Dam Refurbishment Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish
AI summary Table 8 outlines residual harm from potential impacts associated with the Ruth Falls Dam Refurbishment, focusing on potential effects, mitigation measures, and residual serious harm to fish.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Reservoir Bathymetry - 3. Ruth Falls Reservoir Location of Structures
AI summary Appendix A provides an overview of the Hydro System, including a map of the Sheet Harbour Hydro System, bathymetry of the Ruth Falls Reservoir, and the location of structures within the Ruth Falls Reservoir.
CI 50518 NSUARB IR-12 Attachment 10 Page 109 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment 3D Modelling and Fish Passage Assessment FINAL REPORT ver.2 Project 221107.00 • 20th March 2023
AI summary The text refers to a final report on the Ruth Falls Dam Refurbishment 3D Modelling and Fish Passage Assessment, dated 20th March 2023. It is part of a larger document with a redacted section and includes project reference number 221107.00.
2.0 BACKGROUND The Ruth Falls Hydro System dam site (referred to as "the site") is located 5 km north of the Town of Sheet Harbour, at latitude 44.95541° N and longitude -62.50016 ° W. The dam is located on the East River (Sheet Harbour),...
AI summary The Ruth Falls Hydro System dam, located near Sheet Harbour, will undergo a 5.5-metre drawdown in the upstream area of Ruth Falls Flowage for nine months in 2024 to allow maintenance and repair work. The drawdown is scheduled to begin mid-July 2024 and will last ten days.
3.5 Contingency Planning The hydrological information provided below references the Sheet Harbour system flood study, which was completed as part of NS Power's dam safety program in addition to the system dam safety reviews. Figure 1 below...
AI summary This section discusses contingency planning related to the Sheet Harbour system flood study, which was part of NS Power's dam safety program and includes a reference to an elevation-storage curve from a 2008 flood study.
The Sheet Harbour Hydro System is located on the East River in Halifax County, with the easternmost extents of the drainage area extending into Guysborough County. The hydro system has a drainage area of 573.9 km 2 . Presently there are si...
AI summary The Sheet Harbour Hydro System includes six reservoirs and two generating stations, Malay Falls and Ruth Falls, located in Halifax and Guysborough Counties. The system has a drainage area of 573.9 km² and produces a total of 10.6 MW of power. Appendices provide mapping, photos, and engineering drawings, and GPS coordinates are included for the Ruth Falls Dam.
Table 10 - Residual Harm from Potential Impacts Associated with the Ruth Falls Dam Refurbishment Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish
AI summary Table 10 outlines the residual harm from potential impacts associated with the Ruth Falls Dam Refurbishment, focusing on measures to mitigate serious harm to fish and the potential residual serious harm that may remain.
APPENDIX A – HYDRO SYSTEM OVERVIEW - 1. Sheet Harbour Hydro System Map - 2. Ruth Falls Reservoir Bathymetry - 3. Ruth Falls Reservoir Location of Structures
AI summary Appendix A provides an overview of the Hydro System, including a map of the Sheet Harbour Hydro System, bathymetry of the Ruth Falls Reservoir, and the location of structures at Ruth Falls Reservoir.
3.1 Salmon smolt study The first study was carried out in May 2009 using hatchery grown Atlantic salmon smolts. Close to 300 fish were individually Pit tagged and released for three consecutive days at the entrance to the canal leading to...
AI summary In May 2009, a study was conducted to assess the effectiveness of a bypass system at the Ruth Falls generation station by releasing 300 Atlantic salmon smolts. The study focused on the relationship between water velocity ratios and bypass effectiveness, with a threshold of 1.5 identified as critical.
2.0 BACKGROUND The Ruth Falls Hydro System dam site (referred to as "the site") is located 5 km north of the Town of Sheet Harbour, at latitude 44.95541° N and longitude -62.50016 ° W. The dam is located on the East River, downstream of Ru...
AI summary The Ruth Falls Hydro System dam site is located near Sheet Harbour. NSPI plans to lower water levels in the Ruth Falls Flowage by 5.5 metres for nine months in 2024 to allow maintenance and repair of the dam.
Offsetting Plan for Nova Scotia Power's Sheet Harbour Dam Refurbishment Projects Prepared on: May 14, 2021 Updated on: October 27th. 2023 52 Legends Avenue P.O Box 1590 Truro NS, B2N, 5V3
AI summary The document outlines an offsetting plan for Nova Scotia Power's Sheet Harbour Dam Refurbishment Projects, prepared on May 14, 2021, and updated on October 27, 2023. It includes visual elements and contact information for the location.
NON-CONFIDENTIAL 1 Request IR-13: 2 3 With regards to Exhibit N-2 filed in the current Matter: 4 5 (a) Has NS Power had any discussions with GreenQuest Power related to GreenQuest 6 Power acquiring the Ruth Falls hydropower assets? 7 8 (i)...
AI summary The document outlines a request and response regarding NS Power's interactions with GreenQuest Power concerning potential acquisitions of hydropower assets, including the Ruth Falls Hydro System. NS Power states it had no prior communication with GreenQuest Power on this matter except as previously discussed in Matter M10366.