Bioretention Outflow: Does It Mimic Nonurban Watershed Shallow Interflow?

DeBusk, K. M.; Hunt, William F.; Line, Daniel E.

doi:10.1061/(asce)he.1943-5584.0000315

Cited by 64 publications

(22 citation statements)

References 19 publications

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“…A study was conducted that compared underdrain flow from four bioretention cells in North Carolina within comparably sized, undeveloped watersheds draining to small streams, normalized by drainage area. The results indicated no statistical difference between flow rates from the undeveloped watersheds and bioretention outflow rates for the two days following the commencement of flow [45]. This study confirmed that bioretention outflow can mimic non-urban, shallow interflow to streams, and thus help restore the natural hydroperiod.…”

Section: Hydrologic Restorationsupporting

confidence: 57%

Review and Research Needs of Bioretention Used for the Treatment of Urban Stormwater

Liu

Sample

Bell

et al. 2014

Water

211

105

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Abstract:The continued development of urban areas in recent decades has caused multiple issues affecting the sustainability of urban drainage systems. The increase of impervious surface areas in urban regions alters watershed hydrology and water quality. Typical impacts to downstream hydrologic regimes include higher peak flows and runoff volumes, shorter lag times, and reduced infiltration and base flow. Urban runoff increases the transport of pollutants and nutrients and thus degrades water bodies downstream from urban areas. One of the most frequently used practices to mitigate these impacts is bioretention. Despite its widespread use, research on bioretention systems remains active, particularly in terms of mix design and nitrogen treatment. Recent research focusing on bioretention is reviewed herein. The use of mesocosms provides the ability to isolate particular treatment processes and replicate variability. Computational models have been adapted and applied to simulate bioretention, offering potential improvements to their operation, maintenance, and design. Maintenance practices are important for sustained operation and have also been reviewed. Predicting maintenance is essential to assessing lifecycle costs. Within these research areas, gaps are explored, and recommendations made for future work.

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Section: Hydrologic Restorationsupporting

confidence: 57%

Review and Research Needs of Bioretention Used for the Treatment of Urban Stormwater

Liu

Sample

Bell

et al. 2014

Water

211

105

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“…Lined systems with appropriate filter media may provide a high degree of detention and very slow release (if sized appropriately), matched for example to the pre-development interflow or baseflow rate for their contributing catchment area (DeBusk, Hunt, & Line, 2011;Hunt et al, 2006). Unlined and undrained biofiltration systems constructed to maximize exfiltration have the additional advantage of increasing soil moisture in surrounding areas (dependent on constraints imposed by nearby infrastructure), thus improving the urban landscape and microclimate (Gomez, Jabaloyes, & Vano, 2004).…”

Section: Potential Tools For Flow-regime Managementmentioning

confidence: 98%

Hydrologic shortcomings of conventional urban stormwater management and opportunities for reform

Burns

Fletcher

Walsh

et al. 2012

Landscape and Urban Planning

361

237

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“…The discharge magnitudes were, however, at or below the threshold-flow criterion during these periods. DeBusk et al (2011) showed that the outflow rates from a bioretention mimicked the shallow interflow to a stream (draining an undeveloped watershed) after a storm event, thereby suggesting that the low outflow rates from a SCM need not be considered as runoff. In addition, a longer cumulative duration of discharge is required to release the excess volume generated due to the increased postdevelopment total runoff volume (Booth and Jackson 1997).…”

Section: Comparison To Reference Flow Durationsmentioning

confidence: 96%

Hydrologic Performance of a Transitioned Infiltration Basin Managing Highway Runoff

Natarajan

Davis

2015

J. Sustainable Water Built Environ.

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Infiltration basins are widely used stormwater control measures (SCMs) for urban stormwater runoff management. However, these SCMs can experience progressive failure to hydrologically perform as originally designed (i.e., primarily infiltration-based runoff control) and the functionality of such failed infiltration basins in managing stormwater runoff is unknown. In this field-scale research study, the hydrologic performance of a failed stormwater infiltration basin was investigated over 3 years. Visual indications of wet pond/wetland like conditions on-site suggested that the infiltration basin had evolved or transitioned to an alternate type of SCM. The transitioned infiltration basin mitigated runoff flows by providing dynamic flow attenuation, total volume and peak flow reductions, and reduced discharge durations. Performance of the transitioned basin can be classified into the following three hydrologic regimes: 100% volume reduction due to complete capture for small storm events; variable volume reductions (4-100%) for most medium and some large storm events depending on the season; and small or no net impact on the largest and extreme events. Although the original infiltration capacity was found to be diminished, detention, retention, and evapotranspiration promoted by the presence of open water and vegetation in the transitioned infiltration basin enabled effective management of runoff.

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Bioretention Outflow: Does It Mimic Nonurban Watershed Shallow Interflow?

Cited by 64 publications

References 19 publications

Review and Research Needs of Bioretention Used for the Treatment of Urban Stormwater

Review and Research Needs of Bioretention Used for the Treatment of Urban Stormwater

Hydrologic shortcomings of conventional urban stormwater management and opportunities for reform

Hydrologic Performance of a Transitioned Infiltration Basin Managing Highway Runoff

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