Partial refurbishment of the coatings of the Avrieux penstocks (73)

Project owner EDF Petite-Hydro - GEH Vallée de la Maurienne

Type of project Partial refurbishment of the CF linings

The project involved refurbishment work on the coatings of the penstocks.

Main technical features

Internal diameter: 2.5 m; Nominal thicknesses: 9 to 23 mm; Length: 550 linear metres; Slope: 45° maximum; Elevation difference: 100.25 m

Specific constraints

Removal of the old coatings by sandblasting outdoors and hydroblasting indoors. Asbestos context under Subsection 3. Adaptation of the site installations to limit noise pollution.

Penstock

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  • Location 73500 Avrieux
  • Project / construction cost 2 858 k €
  • Years of completion 2021 - 2022

Penstock

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