Case study: Increased capacity of sewer/drainage system, Paris

Location of the case study

Paris, FR

Description of the application

Paris has inaugurated in 2009 Europe’s largest underground stormwater storage tunnel to date, with a 1.86km long 30m deep tunnel of 6.80m diameter and a total capacity of 80,000m3. Total investment was € 109 M for this tunnel, however the total stormwater management master plan cost could exceed € 4 B.


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Implementation costs (Show all)

>1.000.000 €

Served purpose of implementation (Show all)

Strongly Positive

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Real Case Study

Last modified: Sept. 13, 2016, 3:52 a.m.