France, 2003-2006
General description
Construction of a storage tunnel to buffer excess stormwater. It temporarily holds 80,000 m3 of water before discharging to treatment plants or overflowing to the Seine river.
It has an internal diameter of 6.8 m and was driven with an earth-pressure-balance tunnel-boring machine. It lies between Masséna Bridge in Paris and the town of Ivry, covering a distance of 1,850 m.
MAIN CHARACTERISTICS
Work performed
- Rehabilitation of a road on the banks of the Seine: bank consolidation
- Two 17.5-m-diameter, 32-m-deep shafts
- 6.8 m internal diameter tunnel, 1850 m long
- Safety overflow into the Seine
- Underground plant rooms.
- Two circular shafts: 17.25 m diameter, 32 m deep
