Field Testing of BMPs Using Granulated Ferric Oxide Media to Remove Dissolved Metals in Roadway Stormwater Runoff

Dissolved metals in roadway stormwater runoff can exceed water quality standards and state departments of transportation (state DOTs) in many parts of the country are being required to reduce the concentrations of these pollutants. NCHRP Report 767: Measuring and Removing Dissolved Metals from Stormwater in Highly Urbanized Areas evaluated a variety of media for removing dissolved metals from roadway stormwater runoff. The research concluded that granulated ferric oxide (GFO) performed well under controlled conditions, but that stormwater best management practices (BMPs) that use GFO should be field tested. Additional research is needed to evaluate the potential benefits and life-cycle costs of using GFO in state DOTs’ stormwater management programs. The objective of this research is to evaluate the effectiveness and cost of using GFO media in removing dissolved metals from stormwater runoff.


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  • Status: Completed
  • Funding: $400000
  • Contract Numbers:

    Project 25-54

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Sundstrom, Lori

  • Performing Organizations:

    Barr Engineering Company

    4300 MarketPlace Drive
    Suite 200
    Minneapolis, MN  United States  55435
  • Principal Investigators:

    Pilgrim, Keith

  • Start Date: 20160916
  • Expected Completion Date: 20190628
  • Actual Completion Date: 20190628
  • Source Data: RiP Project 40231

Subject/Index Terms

Filing Info

  • Accession Number: 01572338
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 25-54
  • Files: TRB, RiP
  • Created Date: Aug 6 2015 1:00AM