The Ortolo Reservoir (french: Réservoir de l'Ortolo) is a reservoir in the
Corse-du-Sud department of France on the island of Corsica.
Location
The Ortolo reservoir is formed by a dam (''Barrage de l'Ortolo'') that impounds the Ortolo river.
Other affluents are the Ruisseau de Latagu and the Ruisseau de Caraglia.
The southwest end and the dam are in the commune of
Sartène, while the bulk of the reservoir is in the commune of
Levie
Levie ( co, Livìa) is a commune in the French department of Corse-du-Sud, collectivity of Corsica, France.
Population
See also
*Communes of the Corse-du-Sud department
An intentional community is a voluntary residential community w ...
.
The reservoir is to the north of the Punta d'Ovace.
File:Lac de l'Ortolo.jpg, The reservoir from the north shore. Cagna mountain in the background
Dam
The dam is owned by the ''Collectivité Territoriale de Corse'' and operated by the ''Office d’Equipement Hydraulique de Corse''.
It is made of
riprap.
The dam is sealed by a thick asphalt-impregnated
geomembrane, known as a
bituminous geomembrane
Bituminous geomembrane (BGM) is a type of geomembrane consisting of a reinforcing geotextile to provide mechanical strength and elastomeric bitumen (often called asphalt in American English, U.S.) to provide impermeability. Other components such ...
.
It is faced with concrete slabs thick, reinforced with
polypropylene fibers.
There is a needled
nonwoven
Nonwoven fabric is a fabric-like material made from staple fibre (short) and long fibres (continuous long), bonded together by chemical, mechanical, heat or solvent treatment. The term is used in the textile manufacturing industry to denote fabri ...
polypropylene
geotextile between the geomembrane and the slabs.
The concrete slabs were cast in place.
The dam is high and long with a crest elevation of .
It contains of water and has a surface area of .
The watershed covers .
The dam provides water for irrigation.
Fishing is allowed, including angling or casting from the shore, fishing from a flat-bottomed boat without a motor, or from a float tube.
History
The dam was filled in 1995.
It came into service in 1996.
Average volume actually contained fluctuated in the period from 2003 to 2019 between about to .
Over the first twenty years the structure suffered severe degradation.
In July 2013 an expert reported that the diameter intake pipe, which had been thick was in some places reduced to .
In March 2014 farmers in Cauria-Tizzano-Conca in
Sartène staged a protest because they were not receiving water from the dam.
Repair work started in 2016 but was interrupted by floods in November and December that year.
Work resumed in November 2017.
See also
*
List of waterbodies of Corse-du-Sud
This list of waterbodies of Corse-du-Sud includes static bodies of water (lakes, reservoirs, coastal lagoons) and flowing bodies of water (rivers and streams) in the department of Corse-du-Sud on the island of Corsica.
Static waterbodies Natu ...
Notes
Sources
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{{DEFAULTSORT:Ortolo Reservoir
Reservoirs of Corsica