Hydraulic characteristics of low-impact development practices in northeastern Ohio, 2008–2010
Scientific Investigations Report
2011-5165
In cooperation with the Chagrin River Watershed Partners
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Abstract
Low-impact development (LID) is an approach to managing stormwater as near to its source as possible; this is accomplished by minimizing impervious surfaces and promoting more natural infiltration and evapotranspiration than is typically associated with developed areas. Two newly constructed LID sites in northeastern Ohio were studied to document their hydraulic characteristics. A roadside best-management practice (BMP) was constructed by replacing about 1,400 linear feet of existing ditches with a bioswale/rain garden BMP consisting of a grassed swale interspersed with rain-garden/overflow structures. The site was monitored in 2008, 2009, and 2010. Although some overflows occurred, numerous precipitation events exceeding the 0.75-inch design storm did not result in overflows. A second study site consists of an 8,200-square-foot parking lot made of a pervious pavers and a rain garden that receives runoff from the roof of a nearby commercial building. A comparison of data from 2009 and 2010 indicates that the median runoff volume in 2010 decreased relative to 2009. The centroid lag times (time difference between centroid of precipitation and centroid of flow) decreased in 2010, most likely due to more intense, shorter duration precipitation events and maturation of the rain garden. Additional data could help quantify the relation between meteorological variables and BMP efficiency.
Study Area
Additional publication details
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Hydraulic characteristics of low-impact development practices in northeastern Ohio, 2008–2010 |
Series title | Scientific Investigations Report |
Series number | 2011-5165 |
DOI | 10.3133/sir20115165 |
Year Published | 2011 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | Ohio Water Science Center |
Description | iv, 19 p. |
Time Range Start | 2008-01-01 |
Time Range End | 2010-12-31 |
Country | United States |
State | Ohio |
Other Geospatial | Chagrin River Watershed |
Online Only (Y/N) | Y |