Monaco's Roya water rights set to expire in 2044
By Zak Jackson, MonacoViews Editorial
A Franco-Italian water agreement that supplies Monaco with 100 litres per second from the Roya river is due to lapse in 2044, raising long-term supply questions for the Principality.
A water rights arrangement that has underpinned part of Monaco's drinking water supply for decades is set to expire in 2044, when the existing Franco-Italian accord governing flows from the Roya river reaches its end date. Under the current framework, Monaco receives 100 litres per second from the Roya — a river that rises in the Italian Alps and crosses into France before reaching the coast near Menton. The Principality is not a direct party to the bilateral agreement, which complicates its ability to influence any renegotiation.
The 2044 deadline is still nearly two decades away, but Monaco's water managers are understood to be watching the dossier closely. Any failure to renew or replace the arrangement would require the Principality to identify alternative sources or significantly expand its desalination and recycled-water capacity at a time when regional water stress is already increasing due to changing rainfall patterns across the Alpes-Maritimes.
Water security has gained sharper political attention in Monaco in recent years. The government has invested in reducing per-capita consumption and diversifying supply infrastructure, but the Roya flow remains a meaningful share of daily provision. How France and Italy approach the 2044 renewal — and whether Monaco can secure a formal seat at that table — will be one of the quieter but more consequential infrastructure questions facing the Principality over the coming years.