page_title: Two-stage drainage ditch
section_title: Higher Upfront Cost than Alternative Management Strategies
hierarchical_section_title: Two-stage drainage ditch / Advantages and Disadvantages of the Two Stage Drainage Ditch / Lower Ongoing Costs / Higher Upfront Cost than Alternative Management Strategies
caption_attribution_description: English: Scaled Diagram of Two Stage Drainage Ditch
context_page_description: A drainage ditch is a depression in the land created to channel water. Drainage ditches are typically formed around low-lying areas, roadsides or fields proximate to a water body or created to channel water from a more distant water source for the purpose of plant irrigation. The two stage drainage ditch is classified as a 'surface' sustainable drainage system, contrary to a sub-surface system. The two stage drainage ditch is a modification of the land whereby grass benches which serve as floodplains are formed within the land of the watershed of the water system, shown in the diagram to the right. By implementing benches either side of the water body, the energy of surface runoff dissipates, sustaining fluvial processes of the channel, thereby improving the water stability and water quality of existing channel.
context_section_description: In acknowledgement of the above, the upfront costs associated with the formation of a two stage drainage ditch, particularly the benches adjacent to the water channel is likely higher than the cost incurred by more traditional maintenance approaches. Thus, since such initial investment is necessary, the landowner whom is implementing the two stage drainage ditch must do a cost-benefit analysis how the necessitation of the management system and the benefits of the project outweigh the associated costs.
caption: Scaled Diagram of the Two Stage Drainage Ditch
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