- ACCIONA
- Projects
- Construction
- Railways and Tunnels
- Madronal II Tunnel
This project, worth €41 million, involved the design and construction of a 3.1-km long tunnel of 3.5 m in diameter, to accommodate 1.2-m and 2-m diameter water pipelines.
Other services include electrical cables, fibre-optic communication services and transformer stations.
Design and construction of the high-speed urban train in San Juan, running from Rio Bayamón via Centro Médico to Villa Nevarez and Hato Rey.
The longest tunnel excavated from a single entry point and the ninth longest in the world.
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