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Bezons detention basin

Stormwater overflow basin

Water Treatment

France, 2009-2010

General description

Construction of a detention basin for buffering and releasing excess stormwater. Effective storage capacity of 9,500 m3.

MAIN CHARACTERISTICS

Works performed:

- underground water intake connected to existing networks,

- underground effluent trashrack structure,

- 1800 mm DN feed pipe, 350 m long,

- underground storage basin,

- 600 mm DN outlet pipe operating under pressure flow.

Consortium

BOUYGUES TRAVAUX PUBLICS / SEFI INTRAFOR

Project owner

SYNDICAT INTERCOMMUNAL D'ASSAINISSEMENT DE HOUILLES-CARRIERES / SEINE-BEZONS-CHATOU

Key figures

470 m

excavated with mini TBM

22 m x 30 m

diameter deep

9,500 m³

capacity (equivalent of three Olympic swimming pools)

Locations

Associated Projects

Ivry–Masséna storage tunnel
Ivry–Masséna storage tunnel

Stormwater storage tunnel

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 HKW-DSD TUNNEL
HKW-DSD TUNNEL

Stormwater drainage tunnel

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