The project can be divided into two large parts: Pumping and load breaking, land outfall
The pumping system consists of a 102-m trench containing two 1,200-mm cast-iron pipes that convey the water to the inlet of the land outfall. At this point, a large load breaking inspection chamber is installed, such that from this point, the water flows by gravity through the outfall, which has a length of 7,344 m and an internal diameter of 3 m. The tunnel excavation was performed with a tunnel boring machine (TBM).
The upper part of the chamber will be developed to create a recreational area for urban use.
- Ferrol, La Coruña, Spain
- Contract type
- 7,343-m long tunnel of 3 metres in diameter and a slope of 1.5 m x 1,000 m
- Year of project completion