Research for the AASHTO Committee on Environment and Sustainability. Task 119. Enhancing the International Stormwater BMP Database to Serve as a Highway Specific BMP Database

State departments of transportation (state DOTs) are faced with increasing stormwater treatment demands, with tightening treatment criteria and additional pollutant targets. To meet these requirements, DOTs need ready access to reliable information about stormwater treatment Best Management Practices (BMPs) in order to choose effective solutions appropriate for project specific conditions. The International Stormwater Best Management Practice Database (BMPDB) contains information about numerous BMPs. However, the structure of the BMPDB does not make it simple to retrieve highway specific BMP information, and lacks some data elements of particular interest to DOTs. NCHRP Project 25-25(92) Transferability of Post-Construction Stormwater Quality BMP Effectiveness Studies concluded that while BMP effectiveness data is generally transferable, BMP performance monitoring studies tend to be concentrated in certain parts of the nation due to varying regulatory requirements, access to funding and other factors. The addition of more DOT specific data from a broader geographic spectrum would make studies of effectiveness and contributing factors better and more robust. Likewise, the consolidation of DOT BMP data and analysis would give stormwater designers easy access to the information needed for good decision-making. Therefore measures to encourage data submittal and to facilitate the storage and transfer of the data are needed. The project report recommended that the BMPDB be adopted as the data clearinghouse for DOT BMP studies and that a customized “DOT Portal” be developed to facilitate easier access to DOT-specific BMP information. To quote from the 25-25(92) Final Report: A review of various available data clearinghouses as part of this effort led to the conclusion that the BMPDB was the most comprehensive national-scale, actively maintained database of BMP performance study information currently available and it already includes a significant number of highway BMP datasets. The summary of BMP effectiveness standardization considerations (Section 4), as well as the long-term track record of maintenance and enhancement of the database led to the recommendation that the BMPDB be adopted as the data clearinghouse for DOT BMP studies and that a customized “DOT Portal” be developed to facilitate easier access to DOT-specific BMP information. In addition, Section 4 also identified additional transportation-specific data fields and analysis tools that would be useful for DOTs (and in some cases others as well). Minor modifications to the BMPDB would establish data fields for information of importance to DOTs that are not currently collected. Section 5 of the 25-25 (92) provides the foundation for this effort. Once the upgrade is completed operational costs would be covered by the BMPDB’s annual budget. Upon completion of the project, the contractor will provide a statement of commitment to maintaining the database and providing access to the database using the portal free of charge upon completion of the project. The data within the BMPDB will allow for analysis of the effects of variables such as climate and highway design features on BMP effectiveness and suitability. Examples of activities where the upgraded BMPDB would increase efficiency include updating stormwater manuals’ BMP selection and installation guidance, researching BMPs that address specific pollutants or fit local conditions, improving the accuracy of models such as SELDM that calculate the effect of implementing various BMPs, and supporting discussions about permit conditions and strategies with regulatory agencies. A more robust highway data set in the BMPDB may reduce regulatory requirements for BMP monitoring by individual state DOTs while directing studies towards areas with the greatest need. The DOT Portal and outreach efforts will increase the flow of studies to the BMPDB, keeping it current and continually increasing the value of the data and analyses for DOTs.


  • English


  • Status: Active
  • Funding: $80000
  • Contract Numbers:

    Project 25-25, Task 119

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

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

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Hartell, Ann

  • Performing Organizations:

    The Water Resources Foundation/Geosyntec

  • Principal Investigators:

    Strecker, Eric

  • Start Date: 20181203
  • Expected Completion Date: 20191202
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01690788
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 25-25, Task 119
  • Files: TRB, RiP
  • Created Date: Jan 14 2019 3:03PM