Changes

Things to consider in design:

Things to consider in design:

*If the system is unlined it is hydraulically equivalent to a [[bioretention]] cell and provides similar water quality benefits.   

*If the trench is unlined it is hydraulically similar to a [[bioretention]] cell and should provide similar water quality benefits.   

*If the system is lined and features an underdrain it is hydraulically similar to a large [[stormwater planter]]. Depending on the design detail it may retain significant stormwater within the planting soil volume and will provide water quality benefits.   

*If the trench features an impermeable liner and underdrain it is hydraulically similar to a large [[stormwater planter]]. Depending on design details it may retain significant stormwater within the planting soil volume and will provide water quality benefits.   

===Geometry and Site Layout===

===Geometry and Site Layout===