Evaluating a Two-Stage Roadside Ditch Design to Improve Environmental Performance [Brief]

Details

• Creators:
  Schilling, Keith
• Corporate Creators:
  University of Iowa. IIHR - Hydroscience & Engineering
• Corporate Contributors:
  Iowa. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Roadside
  • Ditches
  • Water quality
  • Floods
  • Monitoring
  • Vegetation
  • Phosphorus
  • Sediment discharge
• Publication/ Report Number:
  20-SPR1-002
• Resource Type:
  Brief
• Geographical Coverage:
  United States ; Iowa
• Corporate Publisher:
  University of Iowa. IIHR Hydroscience and Engineering
• Abstract:
  This project evaluated the efficacy of the two-stage design for roadside ditches located in Iowa from multiple perspectives. For this purpose, the project team set forth the following research objectives:1. Evaluation of the performance of two-stage road side ditches for their ability to improve water quality by efficiently processing sediment and nutrients:2. Evaluation of hydrology of two-stage ditches constructed in roadsides to mitigate flooding; and,3. Evaluation of potential for expanding the 2-stage ditch implementation at other landscape locations throughout Iowa. Attaining these evaluations has been accomplished through a set of complementary tasks that included: a) retrofitting a conventional 1-stage ditch with a 2-stage configuration; b)executing a multi-variable field monitoring program: and c)conducting associated numerical simulations.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93174/dot_93174_DS1.pdf
• File Type:
  [PDF - 261.46 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:1c8214b6b39b2a1955406f53d162c76ebb9ad35867b5283fafeada454727676f3ae8fe2a4f8a85390469603cc56ab0aadb6819f915141d9c32abfe64d8df8b87