Topic:"System Reliability" in M12746

1.4 Basis of Design / Design Criteria The concept design development work is based on a review of previous reports and documentation provided by NSPI, as well as the site inspection carried out by Wood on November 9, 2023, accompanied by N...

AI summary The design criteria for the Tusket Tidal Pond project focus on preventing gaspereau stranding while ensuring operational effectiveness of the Tusket powerhouse. Key considerations include reliability, constructability challenges (winter construction, limited access), environmental impact, sediment runoff, maintenance, and capital costs. The design is based on prior NSPI reports, LiDAR data, and a site inspection by Wood.

2.1 General The concept design options were grouped into two categories as follows: - Options that prevent fish from entering the tidal pond area; and, - Options that allow the fish to enter the tidal pond and leave when the tide recedes....

AI summary The document outlines two concept design categories for managing fish movement in tidal pond areas: preventing fish entry and allowing entry during tide recession. Modifications to hydro system operations to prevent fish stranding were reviewed but found ineffective due to tidal influences. Further details are provided in Section 3.

3.4.1 Description The plan and details of Option A-3 are shown on Drawing SK-004. This option consists of closing off all tidally influenced inflows to the tidal pond area, except at the most downstream end, by constructing a berm in the w...

AI summary Option A-3 involves constructing a berm to restrict tidal inflows, maintaining a 6 cfs flow for fish oxygenation and migration, resizing outlets for suitable water depth, and using swamp mats for construction access. This differs from Option A-2 by extending the berm's length and height.