Design and Construction of Infiltration Facilities
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Design and Construction of Infiltration Facilities
Published Date
2021-06
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Minnesota Department of Transportation
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Report
Abstract
Infiltration stormwater control measures are an important structural practice to mitigate the impacts of urbanization on stormwater quality and quantity. Infiltration stormwater control measures help to mimic the natural processes of infiltration and evapotranspiration. Unfortunately, the failure rate of infiltration stormwater control measures has been observed to be between 10% and 50%. Two common causes of failure are addressed in this work, namely improper siting and improper characterization of saturated hydraulic conductivity. A procedure to calculate a preliminary infiltration rating (PIR) was developed in a geographic information system to identify areas where infiltration stormwater control measures are likely to be successful. The Modified Philip-Dunne infiltrometer, double ring infiltrometer, Turf-Tec IN2-W infiltrometer, and soil texture analysis were used to estimate infiltration capacity in three swales in the Twin Cities Metropolitan area. A correction factor was proposed for the Turf-Tec IN2-W infiltrometer. A protocol for assessing infiltration capacity was also proposed.
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Tecca, Nicholas P.; Gulliver, John S.; Nieber, John L.; Weiss, Peter T.. (2021). Design and Construction of Infiltration Facilities. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/223059.
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