N-1Redacted Application 6/28/2010
5 passages
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.
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.
2.2 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.
2.5 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.