Nutrient (Nitrogen/ Phosphorus) Management and Source Control

This report was developed to address the growing need for a better understanding of nutrient cycling, fate and transport, and removal mechanisms to improve the control of nutrient sources and runoff concentrations from state department of transportation (DOT) facilities. It was developed based on the latest research and focused data analysis to provide state DOTs an understanding of highway nutrient contributions and how they can be cost-effectively managed, if required, via best management practices (BMPs). Section 2.0 of this report provides a summary of impaired water bodies and current U.S. Environmental Protection Agency (EPA) and state water quality policies and programs affecting nutrient management. Section 3.0 provides an overview of nutrient sources and forms and their fate and transport mechanisms. Section 4.0 summarizes DOT studies and data analyses focused on evaluating nutrient contributions from highway runoff. Section 5.0 summarizes the treatment processes that effectively remove nutrients from stormwater and the role of BMPs in nutrient removal. Section 6.0 summarizes current DOT source control and runoff management strategies as well as DOT organizational efforts for nutrient control. Section 7.0 summarizes the major findings and provides DOT-specific recommendations for nutrient management based on the research.

  • Record URL:
  • Summary URL:
  • Supplemental Notes:
    • This research was sponsored by the American Association of State Highway and Transportation Officials, in cooperation with the Federal Highway Administration, and was conducted in the National Cooperative Highway Research Program, which is administered by the Transportation Research Board of the National Academies.
  • Corporate Authors:

    Geosyntec Consultants

    621 SW Morrison Street, Suite 600
    Portland, OR  United States  97205

    Venner Consulting

    Lakewood, CO  United States  80232
  • Authors:
    • Leisenring, Marc
    • Sahu, Sheila
    • Poor, Cara
    • Zell, Chris
    • Mansell, Scott
    • Venner, Marie
  • Publication Date: 2014-8


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 110p

Subject/Index Terms

Filing Info

  • Accession Number: 01672208
  • Record Type: Publication
  • Report/Paper Numbers: NCHRP Project 25-25, Task 85
  • Files: TRIS
  • Created Date: Jun 8 2018 2:01PM