Changes

Enhanced swales (view source)

974 bytes added , 2 years ago

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[[check dams]]

===Performance===

==Performance==

{|class="wikitable"

|+Ability of Swales to Meet Stormwater Management Objectives

|-

!BMP

!Water Balance

!Water Quality

!Erosion Control

|-

|'''Swale with no underdrain'''

|Partial-based on available storage volume and native soil infiltration rate

|Yes-size for water quality storage requirement and maximum flow rate 0.5 m/s

|Partial-based on available storage volume and native soil infiltration rate

|-

|'''Swale with underdrain or partial infiltration'''

|Partial-based on available storage volume beneath the underdrain and soil infiltration rate

|Yes-size for water quality storage requirement

|Partial-based on available storage, native soil infiltration rate and if a flow restrictor is used

|-

|'''Swale with underdrain and impermeable liner or no infiltration'''

|Partial-some volume reduction through evapo-transpiration

|Yes-size for water quality storage requirement

|Partial-based on available storage volume and if a flow restrictor is used

|}

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