Dams, reservoirs, irrigation ponds, canals and river beds exist for one purpose — to hold water in place — yet they are constantly exposed to seepage, hydrostatic pressure, wave action and erosion. A hydraulic structure that cannot retain its design capacity, or whose banks are gradually washed away, loses both its economic value and its safety margin over time.

Geomas geosynthetic solutions combine geosynthetic clay liners and geomembranes to form a continuous, low-permeability barrier across the base and slopes of the structure. This sealing layer prevents water loss, keeps the reservoir at its intended capacity and protects surrounding groundwater and soil from contamination — a permanent, cost-effective alternative to rigid concrete linings that crack and age.

On canal banks, riverbeds and coastlines, moving water and seasonal level changes trigger scour and slope instability. High-strength woven and nonwoven geotextiles, SandMax slope-protection geocomposites and erosion-control mats stabilize these surfaces against the shear forces of flowing water, while drainage geocomposites relieve hydrostatic pressure behind the barrier.

Every hydraulic structure differs in its hydrology, soil profile and exposure. That is why we design each system around the project's geotechnical and hydraulic data rather than a fixed catalog. Our nature-based solutions protect coastlines and waterways against natural forces while delivering long service life. The result: a watertight, durable and environmentally responsible hydraulic structure.