Bioretention for highway stormwater quality improvement in Texas : final report.

Details

• Creators:
  Li, Ming-Han ; Sung, Chan Yong ; Swapp, Mark ; Kim, Myung Hee ; Chu, Kung-Hui ; McFalls, Jett
• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Best practices
  • Bioremediation
  • Detention basins
  • Drainage
  • Runoff
  • Research projects
  • Filtration
  • Infiltration
  • Water quality management
  • Roadside flora
  More +
• Publication/ Report Number:
  FHWA/TX-13/0-5949-4
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas Department of Transportation. Research and Technology Implementation Office
• Abstract:
  This final report summarizes five years’ worth of work in evaluating the applicability and performance of ; bioretention best management practices (BMPs) for highway environments in Texas. Within the five-year time frame, ; the research team did a literature review, conducted pilot experiments, and constructed a field demonstration site. The ; field site was tested with two different designs: (1) dry (or non-internal water storage IWS) and (2) internal water ; storage types. The field site is near the intersection of SH 21 and SH 6 in Bryan, Texas. The site includes a water ; hydrant for irrigation and synthetic runoff tests. The report includes introduction, research methods, test results, ; discussion, drawing examples, designs and maintenance guidelines, a special specification, a planting plan guide, a ; summary of the site selection process, and test data. ; In summary, bioretention BMPs can reduce peak flow and increase detention time. Non-IWS design ; moderately removed suspended solids, less effectively removed copper and zinc, less effectively removed total ; nitrogen, and moderately removed total phosphorus. The IWS layer significantly improved all performances, including ; hydraulic and water quality. ; The significance of this research project is that bioretention BMPs are a promising method for highway ; application in hot, semi-arid areas. Furthermore, the IWS layer is a viable application to improve bioretention ; performances.
  More +
• Format:
  PDF
• Funding:
  Project 0-5949
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25884/dot_25884_DS1.pdf
• File Type:
  [PDF - 11.85 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:203747bbad31ab38fd36175e16944c8633442de310a18bc6490467e5ed364533b6c1f2ab353bd74d88430ae6f63b63df18271ad79ab1bc0c1bb8645ca93925ec