what causes of sewer flood
Answers
Answer:
Causes of Sewer Backup :
Blockages due to Tree Roots: Shrubs and trees seeking moisture can make their way into sewer line cracks causing extensive damage.
Sanitary Main: A blockage can occur in a city sanitary main.
Water in Basement: Most basement flooding is not related to the sanitary sewer system.
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Floodplains is the area of alluvial deposits found beside the river due to flooding and meandering .The flood brings a fine sands and silts along with it, gets deposited around the rivers in plain.Similary meanders erode away the valley slowly and create a wide valley floor, depositing alluvial, fine silt along the slopes.Over time this builds up into a large flood plain.
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