Determining Design Criteria for Land and Flow Characteristics that Produce Non-Erosive Sheet Flow
| 项目名称： | Determining Design Criteria for Land and Flow Characteristics that Produce Non-Erosive Sheet Flow |
| 摘要： | If a design engineer can show that a project site will produce sheet flow, then it significantly reduces the cost and complexity of stormwater control measures that must be built on site. The problem is that criteria for determining if sheet flow will cause adverse impacts to down slope properties, i.e. erosion and flooding, are not well defined in the Virginia Department of Transportation (VDOT) Drainage Manual, resulting in uncertainty for projects claiming to implement sheet flow as a stormwater control measure. Research is needed to establish appropriate, well-defined, and implementable standards for knowing when it is appropriate to assume a site will result in sheet flow given a set of simple and easily established site conditions including; discharge rate, slope, land use, and soil type. This research can inform changes to guidance provided in the VDOT Drainage Manual and, ultimately, influence how future VDOT projects using sheet flow are implemented by the agency. |
| 状态： | Active |
| 资金： | 238824 |
| 资助组织： | Virginia Transportation Research Council |
| 项目负责人： | Lloyd, Lewis |
| 执行机构： | University of Virginia, Charlottesville |
| 开始时间： | 20200311 |
| 预计完成日期： | 20220731 |
| 主题领域： | Design；Environment；Highways；Hydraulics and Hydrology |
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