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Inspection and Maintenance: Enhanced Swales (view source)
Revision as of 19:24, 5 July 2022
, 2 years ago→Routine Maintenance - Key Components and I&M Tasks
*Repair sunken areas when ≥ 10 cm deep and barren/eroded areas when ≥ 30 cm long;
*Repair sunken areas when ≥ 10 cm deep and barren/eroded areas when ≥ 30 cm long;
*Remove sediment when > 5 cm deep or time to drain water ponded behind [[check dams]] exceeds 48 hours.
*Remove sediment when > 5 cm deep or time to drain water ponded behind [[check dams]] exceeds 48 hours.
|[[File:Filter Bed Pass swale.PNG|295px|thumb|center|The filter bed has retained its original grading without any sharp depressions that would indicate surface bed sinking.]]
|[[File:Filter Bed Pass swale.PNG|295px|thumb|center|The filter bed has retained its original grading without any sharp depressions that would indicate surface bed sinking.]]
[[File:Surface ponding Pass Swale.PNG|295px|thumb|center|TThe maximum surface ponding depth behind check dams matches what was specified in the final design. (Source:
Mark M. Holeman, Inc., 2015)<ref>Mark M. Holeman, Inc. 2015. What is a Bio-Swale? Authored by Rick Blankenship. 25 September 2015. Accessed 5 July 2022. http://www.holemanlandscape.com/2015/09/25/what-is-a-bio-swale/</ref>]]
|[[File:Filter Bed Fail swale.PNG|300px|thumb|center|Clear evidence of bed sinking is visible, creating a preferential ponding area where vegetation has died off.]]
|[[File:Filter Bed Fail swale.PNG|300px|thumb|center|Clear evidence of bed sinking is visible, creating a preferential ponding area where vegetation has died off.]]
[[File:Surface ponding Fail Swale.PNG|300px|thumb|center|The maximum ponding depth of the swale is significantly deeper than intended as the elevation of the check dam or overflow outlet is too high. (Source: Stiffler, 2012<ref>Stiffler, L. 2012.RAIN GARDEN REALITY CHECK: Comparing LID to conventional system failures. Authored by: Eric De Place. 18 April 2012. Sightline Institute. Sustainable Living Series. Accessed 5 July 2022. https://www.sightline.org/2012/04/18/rain-garden-reality-check/</ref>)]]
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|'''[[Vegetation]]'''
|'''[[Vegetation]]'''