Saudi Arabia Launches Massive Rainwater Harvesting Program with 1,000 New Dams to Boost Water Security

Saudi Arabia has announced an ambitious plan to construct 1,000 rainwater harvesting dams with a combined annual capacity of 4 million cubic metres, under the umbrella of its Sustainable Development and Vision 2030 initiatives.

The project-highlighted by Minister of Environment, Water and Agriculture Abdulrahman Al‑Fadley-forms part of broader efforts to expand water sustainability, enhance food security, and scale up environmental conservation.

The dams will help capture seasonal runoff, recharge groundwater aquifers, and reduce reliance on desalinated or fossil water sources.

The dam construction forms a key pillar of the National Environment Strategy recently unveiled by Al‑Fadley, which has also seen the establishment of multiple specialized environmental centers and the launch of the region’s largest environmental fund to support green initiatives.

Saudi Arabia has already rehabilitated over 500,000 hectares of degraded land and planted 151 million trees, with a target to restore 2.5 million hectares and plant over 215 million trees by 2030.

Environmental governance has advanced sharply, with new frameworks and regulations introduced for meteorology, waste management, and biodiversity protections.

Beyond water infrastructure, Saudi Arabia continues to scale its nationwide monitoring and environmental enforcement systems. The Kingdom now operates 240 air‑quality monitoring stations and has modernized meteorological coverage to reach 100% of its territory.

As part of its water resilience strategy, desalinated water production has doubled since 2016 to 16.6 million m³ per day-75% of national supply-while water reuse has grown from 251 million m³ to 550 million m³ annually, now accounting for 32% of usage.

This multifaceted approach illustrates Saudi Arabia’s emerging role as a global model for sustainable water management and green transformation.

1,000 new rainwater-harvesting dams is exactly the physical-adaptation infrastructure Saudi needs to make its water-scarcity narrative credible - and it materially changes the disclosure landscape for water-intensive industries operating in the Kingdom. Our climate-action and impact-assessment teams help clients align water-related capex and disclosure with the emerging Gulf frameworks.