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Deep Drains To Manage Groundwater, Neil Cox, Sylvia Tetlow, Neil Coles
Deep Drains To Manage Groundwater, Neil Cox, Sylvia Tetlow, Neil Coles
Bulletins 4000 -
A channel that is 1.0 m to 3.0 m in depth is considered to be a deep drain. The drain is excavated to a depth that is sufficient to intercept the watertable in order to capture and convey that groundwater from flat, poorly drained land.
The drain can either be ‘open’ to allow the inflow of surface water or ‘leeved’ to exclude surface water. An open deep drain has its spoil banks placed on one side or on alternate sides of the channel (Figure 1) while a leveed deep drain has continuous spoil banks placed on both sides of the …