Leakage prevention
Through-ties would leave a leak path. Tie-rod-free design removes that joint.
SOLUTION 06 Dam & Hydro
High-load, watertight formwork for dams, spillways, and water-retaining structures. Tie-rod-free design eliminates leakage paths through mass concrete.
TECON dam formwork is engineered for mass concrete placement with no through-tie design. Custom curved forms fit spillways and straight panels fit water walls.
Top-loading shutters simplify crane placement for mass pours. Insulated panels are available for cold-weather mass concrete.
Recommended dam formwork by structure type.
| Application | Dimensions | Recommended System | Key Advantage |
|---|---|---|---|
| Mass concrete dams | Up to 80 m lifts | Dam formwork | No through-ties |
| Spillways | Variable radius | Curved forms | Any spillway profile |
| Water-retaining tanks | 10–30 m height | Base 20 / SSF | Watertight joints |
| LNG tanks | Circular, 20–40 m | Custom curved | Smooth internal finish |
Common dam and hydropower conditions solved by TECON systems.
Through-ties would leave a leak path. Tie-rod-free design removes that joint.
Spillways need adjustable radius forming. Custom curved forms match the hydraulic surface.
Water-retaining structures cannot accept leakage at panel joints. Panels are detailed for a continuous seal.
Mass concrete in cold climates needs thermal control. Insulated panels keep pour temperature stable.
Special formwork and single-side wall formwork for dam and hydropower work.

SPECIAL
Dam-specific forms with no through-tie design. Custom-curved for spillway profiles.
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SINGLE SIDE
Single-side forms for water walls and dam faces where the far side is already cast or is rock.
View ProductWhy TECON dam formwork is used on water-retaining structures.
No through-ties in the finished structure. Eliminates a point of leakage.
Simplified concrete placement for mass pours and a shorter cycle.
Forms built to any radius, from straight walls to circular tanks and spillways.
Insulated panels for cold-weather mass concrete.
TECON dam systems in action.
Tell us your dam height, spillway radius, and pour schedule. Our team will design the formwork.