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→LID Design for Flood Control
[[File:Screenshot 2025-09-22 114031.png|500px|thumb|left|Flood and water quality control in stormwater ponds. Water quality control is provided by the permanent pool, Channel and flood protection are provided by the temporary or active storage above the permanent pool. Source: (MECP 2003). Wet ponds do not provide runoff reduction or thermal mitigation benefits.]]
[[File:Screenshot 2025-09-22 114031.png|500px|thumb|left|Flood and water quality control in stormwater ponds. Water quality control is provided by the permanent pool, Channel and flood protection are provided by the temporary or active storage above the permanent pool. Source: (MECP 2003). Wet ponds do not provide runoff reduction or thermal mitigation benefits.]]
[[File:Screenshot 2025-09-22 120027.png|500px|thumb|left|Flood, water quality and water balance control in a hybrid trench and bioretention system. Water quality and water balance storage are provided through infiltration below the underdrain. Active storage above the underdrain provides channel and flood protection. The underdrain may be fitted with an orifice to meet release rate requirements. The infiltration rate increases with hydraulic head, resulting in potentially higher rates of volume reduction through infiltration than conventional LID not designed for flood control. Inlets consisted of a distributed network of curb cuts draining to high flow through cobble/gravel columns (roughly 1 x 2 m). Source of base image: Schollen and Co.) ]]
[[File:Screenshot 2025-09-22 120027.png|500px|thumb|right|Flood, water quality and water balance control in a hybrid trench and bioretention system. Water quality and water balance storage are provided through infiltration below the underdrain. Active storage above the underdrain provides channel and flood protection. The underdrain may be fitted with an orifice to meet release rate requirements. The infiltration rate increases with hydraulic head, resulting in potentially higher rates of volume reduction through infiltration than conventional LID not designed for flood control. Inlets consisted of a distributed network of curb cuts draining to high flow through cobble/gravel columns (roughly 1 x 2 m). Source of base image: Schollen and Co.) ]]