11. This event led to the seal rings on all three penstocks being replaced. 12. Water flows through four penstocks into four megawatt each. 13. The penstocks measure approximately in diameter, and range in length from to. 14. Soon after the dam began operations in 1931, its penstock partially collapsed. 15. Penstock releases from Chesuncook Lake create a popular whitewater run through Ripogenus Gorge.16. This water would then fall into the depression through penstocks for electricity generation. 17. The plant comprises the powerhouse, switchyard, penstocks , and a pipeline. 18. A second penstock was installed underground with the addition of Super-Bissorte. 19. Penstocks are the pipes that supply water from the forebay to the turbines.20. There, each conduit connected with six penstocks , six feet in diameter.
