Case Study: Efficiency of Slit-Check Dams in the Mountain Region of Versilia Basin
Publication: Journal of Hydraulic Engineering
Volume 131, Issue 3
Abstract
Slit-check dams are widely employed in mountain river control. However an analysis of their performance in the field is still lacking. In the present work a field verification to evaluate the interaction between solid discharge regime and four slit-check dams built in two subcatchments of the Versilia River in Tuscany, Italy is presented. The analysis is based on a relatively detailed field knowledge consisting of hydrological, topographical, and sedimentological data, together with a recent model proposed by Armanini and Larcher. Slit-check dam efficiency is analyzed in terms of deposit formation during major floods and its influence on long-term sediment transport regime. Results suggest that the design efficiency is affected by the high sediment trapping capacity associated with the relatively minor floods. A comparison between the deposit geometry predicted by the theory and the field measurements gathered during a systematic monitoring activity shows good agreement.
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Acknowledgment
This research was funded by the Istituto Nazionale per la Ricerca Scientifica e Tecnologica sulla Montagna (INRM) in the framework of the research program “Dinamica e regimazione del trasporto solido in relazione della difesa del territorio montano” 2001.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 131 • Issue 3 • March 2005
Pages: 145 - 152
Copyright
© 2005 ASCE.
History
Received: Apr 15, 2003
Accepted: Aug 19, 2004
Published online: Mar 1, 2005
Published in print: Mar 2005
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