Summary of related CI's +/- 2 years: No other projects in 2008,2009,2010,2011 and 2012 CI Number 28726 - HYD - Carlton Lake Dam Refurbishment Project Number Parent CI Number Approved Date
AI summary The text summarizes related capital investment (CI) projects, noting no projects in 2008–2012, with a specific reference to CI Number 28726 for the Carlton Lake Dam Refurbishment Project.
Why do this project? A flood study was completed to identify the required spillway capacity for the structures on the Tusket Hydro System in accordance with the CDA guidelines. A dam safety review was also completed in 2005. The dam safety...
AI summary The project is necessary due to insufficient freeboard at Carlton Lake, unstable spillway and stop log structures, and a non-compliant fish ladder, requiring upgrades to meet safety and regulatory standards.
Why do this project now? Since 1986, NSPI has carried out dam safety related work on a priority basis. The work at Carlton Lake is scheduled for 2010.
AI summary NSPI has prioritized dam safety work since 1986, with the Carlton Lake project scheduled for 2010. This timeline highlights the long-term commitment to infrastructure maintenance and safety.
Why do this project this way? The dams and/or spillways need to be refurbished to meet the Canadian Dam Safety guidelines for freeboard and stability. Therefore it is necessary to increase the length and stability of the spillway structure...
AI summary The Carlton Lake Dam and spillway require refurbishment to comply with Canadian Dam Safety guidelines, necessitating structural upgrades to enhance stability and freeboard. The project, identified as HYD Carlton Lake Dam Refurbishment (CI 28726), falls under Cost Centre 408-Tusket Hydro.
I. Installation scope and materials at NS Powers' expense: - a) Lifting rig services to handle Portadam equipment, to reach cofferdam perimeter, each day at site. - b) Access, clearing, offloading & reloading at site. - c) Sandbags as requ...
AI summary The document outlines the scope of installation work to be performed at NS Power's expense, including lifting rig services, site access, sandbagging, pumping, clearing subsurface conditions, on-site labor, and dive crew requirements for the Portadam system installation.
CONTRACT (013-028) TENDER CARLTON DAM UNITS UNIT$ TOTAL Cofferdam 1 LS $ $ Surface Preparation 6000 SF $ $ Grouting 200 FT $ $ Demolition 1 LS $ $ Impervious 25000 CY $ $ Granular Filter Material 3000 CY $ $ Rip-Rap Bedding/Erosion Protect...
AI summary The document outlines a contract (013-028) for the construction of the Carlton Dam, detailing various components such as cofferdam, surface preparation, grouting, demolition, and materials like rip-rap, gravel, and concrete, along with associated costs and quantities.
October 9, 2008 Nova Scotla Power Inc. 25 Lakeside Drive Lakeside Industrial Park Hallfax, NS B3T 1M9 Dear Re: Conceptual/Detailed Design of Modifications to the Carleton Dam, Tusket Hydro System, NS AMEC is pleased to submit this proposal...
AI summary AMEC submits a proposal to assist Nova Scotia Power Inc. with the conceptual and detailed design, capital cost estimation, and construction support for modifications to the Carleton Dam, part of the Tusket Hydro System. The proposal includes an understanding of project requirements and an estimate of fees and disbursements.
1.0 PROJECT DESCRIPTION In January 2006, AMEC completed a Dam Safety Review (DSR) of the Carleton Dam. At the time, it was recommended that the dam be upgraded in order to meet the minimum criteria of the 1999 Canadian Dam Association (CDA...
AI summary The 2006 Dam Safety Review of the Carleton Dam identified structural deficiencies requiring upgrades to meet safety guidelines. AMEC and NSPI are evaluating design modifications, including raising embankments, installing concrete overlays, and incorporating fishway improvements. The proposed scope involves conceptual design development and cost estimation for the dam's upgrade.
2.1 General NSPI's request for proposal comprised two phases: - Phase 1 Conceptual design and capital cost estimate. - Phase 2 Detailed design and construction support. AMEC's proposed scope of work will also comprise of two phases. The pr...
AI summary NSPI's proposal for the Carleton Dam involves two phases: conceptual design and capital cost estimation (Phase 1), followed by detailed design and construction support (Phase 2). AMEC's scope includes a workshop to discuss remedial options and sub-divides Phase 2 into feasibility design, detailed design, and construction support.
2.2 Geotechnical Investigations and Surveying In order to proceed with the designs, it is recommended that additional survey information be gathered at the site. A geotechnical investigation including some laboratory testing is also recomm...
AI summary The document recommends conducting geotechnical investigations and surveying in 2008 to confirm embankment composition and soil properties for design purposes. It emphasizes comparing 2005 stability analysis parameters with new findings and potentially re-running analyses, with separate cost estimates provided for this work.
2.3 Work Included - Phase 1 AMEC will undertake the following for the Phase 1 conceptual design: Review documents and conceptual design alternatives to support the selection of the preferred option; 2. Undertake a one-day workshop with NSP...
AI summary AMEC will conduct Phase 1 conceptual design work for NSPI, including reviewing alternatives, holding a design workshop, creating conceptual designs for dam structures, preparing capital cost estimates (25-35% accuracy), and managing the project. The design aligns with CDA guidelines and includes upgrades like embankments, spillways, and rock anchors.
2.4 Work Included Phase 2A AMEC will undertake the following for the Phase 2A feasibility design: 1. Undertake a geotechnical investigation by drilling three 30 ft deep boreholes at the main structure and back spillway to confirm strength...
AI summary AMEC will conduct geotechnical investigations, site surveying, stability analysis, and feasibility design for a dam project, including revisions to capital cost estimates and project management. The work focuses on assessing foundation properties, embankment stability, and designing new structures to replace existing spillway components.
2.5 Work Included - Phase 28 AMI::C will undertake the followIng for the Phase 28 detailed design: 1. Complete the detailed desIgn of the new embankmant and wlngwalls. spillway, rock anchors, embankment raise and back spillway replacement...
AI summary Phase 28 detailed design work includes completing designs for new embankments, wingwalls, spillways, rock anchors, and back spillway replacement. IFe drawings will also be finalized as part of this phase.
2.6 Work Included - Phase 2C AMEC will provIde the following for Phase 2C conslruclion support services. These servloes include Ihe following: - 1. Provide construction support servIces consisting of 1 weak of engIneerIng support and 4 sit...
AI summary AMEC will provide construction support services for Phase 2C, including one week of engineering support, four site visits by geotechnical and structural engineers, and preparation of an as-built report detailing construction activities and drawings.
2.7 Work Not Included - Phase 1 and Phase 2 The following Items of work are not Included In this estimate but can be provided as extra work Items If required: - 1. Confirmation of land ownershIp; - 2. Confirmation of flowage rights; - 3. H...
AI summary The document outlines work items excluded from the current estimate for Phase 1 and Phase 2, including land ownership confirmation, flowage rights, HAOD determination, permits, archaeology studies, and preboard analysis reviews. Some tasks, like sedimentation control, are included in detailed design. Archaeology studies at Carleton Dam may be required, though costs are pending further details.
5,0 SCHEDULE AMEC will undertake the work outlined immediately upon award of contract. It is understood that, depending on funding, the surveying and geotechnical investigation would be carried out in 2008 with the remainder to be complete...
AI summary AMEC will conduct surveying and geotechnical investigations starting in 2008, with remaining work completed in 2009. The recommendation emphasizes prioritizing these initial tasks due to their direct impact on subsequent project phases.
NOVA SCOTIA POWER INC. HYDRO PRODUCTION DAM SAFETY CAPITAL WORKS PRO DAM SAFETY CAPITAL WORKS PROGRAM - February 16, 2010 AL WORKS PROGR 1AM - February 16, 2010 Hydro System (HS) Construction Priority Priority Deficiency Structures Flooded...
AI summary The document presents a table related to the Dam Safety Capital Works Program for various hydro systems in Nova Scotia as of February 16, 2010. It includes columns such as 'Construction Priority,' 'Deficiency,' 'Risk,' and 'Amount,' but most fields are empty or incomplete. The table is part of a regulatory proceeding related to dam safety and capital works.
NOVA SCOTIA POWER INC. HYDRO PRODUCTION DAM SAFETY CAPITAL WORKS PF SAFETY CAPIT. AL WORK S PROGR I SAFETY CAPITAL WORKS PROGRAM - February 16, 2010 Risk ydro System (HS) Year Year Construction Priority Deficiency Structures Flooded Struct...
AI summary The document outlines a capital works program for dam safety within the Nova Scotia Power Inc. hydro production system, including details on risk factors, construction priorities, and deficiencies. However, the content is incomplete and lacks specific data or discussion points.
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