The Spanish ‘Water Highway’: A Lifeline for the Costa del Sol

Sun, sea, and sand are the icons of the Costa del Sol, but behind the scenes, the sunny southern coast struggles with a growing problem: a critical water shortage. The region is now joining forces for an ambitious project worth over €350 million. Construction of the long-awaited ‘water highway’ has officially begun.

• The Problem: A Ticking Time Bomb from the '60s: Many people don’t realize it, but the vital water pipes between the Costa del Sol and Málaga still date back to the 1960s. They are literally at the end of their lifespan. According to the water company Acosol, this outdated system is causing a dangerous increase in ‘explosive’ bursts and massive leaks. With 580,000 permanent residents—a number that more than doubles in summer—and increasing drought due to climate change, a modern network is no longer a luxury, but an absolute necessity for the survival of tourism and livability.
• The Solution: A New Lifeline: The ‘water highway’ is a robust connection that links the Costa del Sol, Málaga, and the Axarquía (east of the city). This new lifeline connects the crucial La Concepción reservoir (near Marbella) more directly to the rest of the coastline. The goal: a flexible system that allows water to be distributed rapidly and efficiently during emergencies to areas where the taps are at risk of running dry.
• A Technical Masterpiece of 1 Kilometer: The urgency is so high that the first phase, worth €13 million, is already in full swing. The route between Torrequebrada (Benalmádena) and El Pinillo (Torremolinos) is only one kilometer long, but it is a massive technical challenge:
  • Obstacles: The pipe must pass under the Cercanías train tracks and the port of Benalmádena.
  • Underground Puzzle: A forest of existing gas and telecom lines must be accounted for.
  • Archaeology: Due to the area's rich history, there is a high chance of archaeological finds during excavation.
• The Clock is Ticking: There is no time to lose: the contractor has only eight months to complete this first crucial link. The new pipe, with an impressive diameter of 800 millimeters, will be buried at least one meter deep to arm the region against the next period of drought. With the ‘water highway’, the Costa del Sol chooses a future where water security forms the basis for sustainable growth. It is a vital investment in the lifeblood of one of Europe’s most beloved regions.