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Upgrading of Stornorrfors dam for safe release of extreme floods
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Hydraulic Engineering. (Vattenbyggnadshydraulik)
Vattenfall AB.
2005 (English)Conference paper (Refereed)
Abstract [en]

Comprehensive dam-safety evaluations of the Stornorrfors dam were made with regard to new Swedish dam-safety guidelines including new design flood. This resulted in classification of the scheme as high hazard and identified inadequacy ofin the need to increase the spillway discharge capacity. To adapt to the Swedish dam-safety guidelines RIDAS, Vattenfall AB intendsand to refurbish the dam to raise its safety level in some other respects. The safety requirements in relation to discharge capacity are to be met by an additional spillway., chosen from three rehabilitation proposals and tThree alternatives have been evaluated in detail. Hydraulic model studies are made to assist in the decision-making. The old reserve spillway opening, sealed at present by a salmon ladder and a concrete wall, will be rebuilt into an gated overflow spillway to accommodate the increased design flood, a decision made by taking into account of a range of technical, environmental, social and economic issues.

Place, publisher, year, edition, pages
Keyword [en]
Stornorrfors, upgrade, extreme floods, spillway
National Category
Civil Engineering
URN: urn:nbn:se:kth:diva-179794OAI: diva2:889459
WaterPower XIV, July 2005, Austin, USA

QC 20160104

Available from: 2015-12-25 Created: 2015-12-25 Last updated: 2016-01-04Bibliographically approved

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