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Dams, Hydropower & Reservoirs operate under extreme hydrostatic loads and often cannot be shut down or drained for repairs. This solution is focused on safely stopping leaks in these critical structures, stabilizing concrete, and extending asset life without compromising generation or water supply.

We combine deep injection, structural repair, and tailored waterproofing systems that perform under high pressure, aggressive water chemistry, and complex access conditions.

Problems We Solve

Dams, Hydropower & Reservoirs need to operate safely under extreme pressure, often without the option of draining or shutting down. We focus on the leak and deterioration scenarios that threaten that reliability.

  • Leaks in galleries, valve chambers, spillways, and penstock access tunnels below or near water level.
  • Water ingress through construction and expansion joints in dams, intake towers, and associated structures.
  • Concrete cracking, spalling, and reinforcement corrosion driven by aggressive or fluctuating water conditions.
  • Situations where reservoirs cannot be lowered, or plant operations cannot be stopped for conventional repair.

How We Fix It

We design methods and materials around your specific structure, operating regime, and safety constraints.

  • Perform leak mapping and access planning to understand water paths and safe working methods.
  • Use high‑pressure gel injection to displace water and create elastic, non‑shrinking barriers within cracks, joints, and surrounding concrete.
  • Carry out concrete repair and gallery rehabilitation where sections are structurally compromised.
  • Integrate with expansion joint sealing, crystalline waterproofing, and protective systems that maintain movement and regulatory compliance.

Where This Is Used

This solution serves dam and hydropower owners who need proven methods under real‑world constraints.

  • Concrete dams and spillways under constant reservoir pressure.
  • Hydropower plants, galleries, and turbine halls that must remain operational.
  • Intake towers, penstocks, surge chambers, and associated water infrastructure.

Ideal Customer

Dam owners, hydropower utilities, and operators of large water infrastructure who must maintain safe, continuous operation under regulatory scrutiny and cannot easily take assets offline for conventional repairs.

Typical Project Profile

Concrete dams, spillways, galleries, and hydropower structures with active leaks or aging concrete, where access is challenging, water levels cannot be significantly reduced, and long‑term reliability is mission‑critical.

If you operate dams or hydropower assets with active leaks or aging concrete, we can plan and execute a repair program that restores watertightness and structural reliability—without draining reservoirs or taking critical components offline.

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Sealing Water Ingress at Hoch-Behälter Reservoir – Usingen, Germany

Chronic leaks reduced capacity in this potable water reservoir. EURAS® Gel Type B was injected under high pressure—restoring integrity without excavation.

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Emergency Leak Sealing at PAP Lisina – HE Vrla, Serbia

When active leaks threatened the valve chamber of this hydropower plant, the EURAS® team responded with high-pressure injection of Gel Type B—sealing the structure in just 48 hours.

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Leak Sealing at Kissir Dam – Jijel, Algeria

Persistent leaks under high reservoir pressure threatened dam safety. Using EURAS® Gel Type B, our team performed deep high-pressure injection—stopping leaks permanently without lowering water levels.

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Complex Leak Sealing at ČHE Avče Pumped-Storage Plant – Slovenia

When chronic leaks at the surge chamber–tunnel interface threatened performance, EURAS® Gel Type B was injected under high pressure to create a permanent waterproof barrier.

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Permanent Leak Sealing at HEC Sveta Petka – Penstock Galleries, FYR Macedonia

Persistent water leaks in the penstock galleries of this hydroelectric plant were compromising operations and structural safety. Traditional methods failed — until EURAS® Gel Type B was applied.

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Leak Sealing at HE Đerdap 1 Hydroelectric Plant – Dilatation Joint S2-S3, Wet Gallery

A leaking expansion joint (S2–S3) in one of Serbia’s most critical hydroelectric plants was sealed without shutting down operations using EURAS® Gel Type B.

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