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  2. When it is necessary to construct a drainage system outfall in a very high ditch bank, prevent erosion using either of the following methods:

    • Install a properly designed drop pipe structure to move the water down to the lower elevation. These structures are sized large enough to serve as a junction box for several main lines. The drop pipe structure, with an optional surface water inlet, is shown in Figure 4. ...
    • Install a sloped, non-perforated drain pipe and end pipe.
    www.ontario.ca/page/subsurface-drainage-system-outfalls
    www.ontario.ca/page/subsurface-drainage-system-outfalls
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  3. People also ask
    How do I identify a drainage system outfall?They are trained in the use of OMAFRA Publication 832: Agricultural Erosion Control Structures: A Design and Construction Manual, and its associated design software. Use a durable, permanent marker that is highly visible above crops and tall grasses to mark the location of all drainage system outfalls.
    What are the requirements for a cut-off drain?These cut-off drains shall be properly connected to an existing roadside/outlet drain and maintenance access shall be provided to facilitate access to the cut-off drains. The affected drain must be hydraulically adequate as determined by the Board, otherwise it must be upgraded to the required size in conjunction with the proposal.
    Who can design and build a drainage system outfall?Qualified drainage and erosion control contractors are available for the design and construction of drainage system outfalls. The OMAFRA website contains up-to-date listings of both erosion control and drainage contractors.
    Why was the stormwater drain not required?It was during his visit that he found that work was incomplete and there were various discrepancies in the work executed so far. “The stormwater drain was not required in the first place as the drain already existing in its place could channelise the water.
     
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