Files
Download Complete Bulletin (965 KB)
Publication Date
1-2005
Series Number
4617
Abstract
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 drain channel (Figure 2). Leveed drains are the preferred design in the majority of cases and sites because they prevent surface flows from entering the drain and so reduce the risk of erosion and drain batter collapse.
Number of Pages
12
ISSN
1448-0352
Keywords
Subsurface drainage, Drainage, Salinity, Groundwater, Engineering, Western Australia
Disciplines
Construction Engineering and Management
Recommended Citation
Cox, N,
Tetlow, S,
and
Coles, N.
(2005), Deep drains to manage groundwater. Department of Primary Industries and Regional Development, Western Australia, Perth. Bulletin 4617.
https://library.dpird.wa.gov.au/bulletins/118
Maps
Maps are not included as part of the complete document download. If this report contains a map, it will be available in the individual parts list below.
