.
Norris Arm. Newfoundland and Labrador.
	Sponsor:
	Photo Credits: Newfoundland Power Information (08-05) Location: Newfoundland Power Rattling Brook hydroelectric development located in Norris Arm. Built: 1958 Picture taken: 25 July, 2005 At 94.79 m. tall, when it was constructed, it was reputed to be the tallest steel plate structure in the world. About this tower. The surge tank functions as a pressure relief device for the penstock (pipeline). Under normal conditions, the surge tank contains water at an elevation equivalent to that of surface of the upstream reservoir. This level will fluctuate during times of sudden changes in the flow rate of water through the penstock due to load pick-up / rejection by the hydroelectric turbine / generator. Design specifications were prepared by the Montreal Engineering Company Ltd., Montreal, Quebec, and the fabrication and erection were carried out by Horton Steel Works Ltd., Fort Erie, Ontario.
The Rattling Brook hydroelectric development went into operation in the fall of 1958 and includes storage dams, a control structure to regulate the flow from the reservoir into a forebay, an intake, pipeline, differential surge tank (shown in photo), powerhouse, substation, and tailrace.
Home	Back To Top