DEFINITION A channel or runnel used for water conveyance from one place to another. This could be from a downspout or scupper to a stormwater planter, a channel along a pedestrian walkway that drains into a lake or river, etc. It is usually decorative in nature due to its high visibility through a public space but does not include planting, filtering or infiltration.
AKARunnel
PERFORMANCE CRITERIAhow is it measured? what are the criteria for its design or planning?
ILLUSTRATION

Two examples of stormwater conveyance channels in pedestrian areas in southern Germany.
Both empty into Lake Constance.
CASE STUDIESStephen Epler Hall, Portland State University, Portland
ADDITIONAL RESOURCESother weblinks, books, articles, etc. related to this element