Lisbon Drainage Master Plan Sensors
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
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Lisbon finished tunnelling its first 4.6km flood tunnel in July 2025, but the €250M plan's second tunnel won't be ready until 2029 — years behind schedule.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 6 more in Lisbon · 🌊 Flood resilience guide · 🌱 Environment projects
Lisbon's first drainage tunnel — 4.6km from Campolide to Santa Apolónia — had its boring completed in July 2025, part of a €250M drainage master plan that also includes a 17,000m3 retention basin; a second, delayed Beato tunnel is now due in 2029. Since 2023 a separate pilot network of ten flood/flow sensors, including one at Alcântara, has tracked water levels in flood-prone road tunnels.
🎓 Lesson
A drainage master plan on paper is not drainage in the ground — even a well-funded flagship climate-adaptation project has slipped years past its own deadlines.
Sources
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📎 Cite this project
1001 Smart Cities (2026). “Lisbon Drainage Master Plan Sensors” — Lisbon, Portugal. The Smart City Atlas. https://1001smartcities.org/projects/lisbon-drainage-control/ (last verified 2026-08-02). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.