- Type: Pench Left Bank Canal
- Location: Nagpur, India
- Product: COLETANCHE® ES2
- Area: 34 000 m² in June 2019 / 20 000 m² in June 2022
The Pench Left Bank Canal, located in central India, brings water from the Pench River to the region’s crops. The original canal consisted of a concrete lining that was collapsing due to clay swelling underneath. In a state where water resources are becoming scarcer over the years, the Nagpur Water Resources Department decided to re-seal the canal using a long-lasting geomembrane.
The most damaged parts of the concrete lining were cleaned and backfill was added and compacted. In other areas, the concrete was preserved. The COLETANCHE® ES2 geomembrane was laid on the substrate and anchored at the head of the slope.
Works both started in June 2019 and 2022 and were scheduled to be completed before the monsoon seasons. COLETANCHE® can be installed so quickly that the entire projects finished in 15 days at an average of 2,200 m² laid per day.
The customer needed a strong, flexible geomembrane. They chose COLETANCHE® for its ability to withstand:
- Substrate settlement,
- High water level,
- The region’s extremely high temperatures.
