Example Of Good And Bad Chute Design

20191212example if a road culvert is to last 25 years with a 40 chance of failure during the design life, it should be designed for a 49year peak flow event i, 49year recurrence intervalhen streamflow records are not available, peak discharge can be estimated by the rational method or formula and is recommended for use on channels draining less than 80 hectares 200 acres.

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