When lining a drainage canal, several considerations must be taken into account. The primary goal is to prevent water seepage and erosion while maintaining efficient water flow. The type of liner material should be chosen based on factors like soil conditions, water flow rate, and the potential for exposure to harsh chemicals or high temperatures.
The slope of the canal must also be considered, as steeper slopes may require more durable or thicker liners to withstand higher flow velocities. Drainage canals often deal with sediment buildup, so a liner should be chosen to resist abrasion and maintain smooth flow. For drainage canals with fluctuating water levels, the liner material should be flexible enough to adapt to these changes without being damaged.