Pavement Runoff Constituents in Closed Highway Drainage Systems

Environmental mitigation based on inadequate evaluations of stormwater impacts is often costly, ineffective, and counter-productive. Historical study results have had wide variations mostly due to the inadequate or poorly documented data collection methods and limited field data. For example, typical grab sampling methods do not document the variations of constituent concentrations in stormwater throughout any given storm. Consequently, existing methods and resultant data from historical storm water studies do not address the information needs of watershed managers because the validity of the data is questionable. Decision makers need viable methods for the interpretation of local, regional, and national highway-runoff and urban-stormwater data including flows, concentrations, loads, potential effects on receiving waters, and the potential effectiveness of various best management practices. Valid, current, and technically defensible stormwater-runoff models are needed to interpret data collected by field studies, support existing highway- and urban-runoff-planning processes, meet National Pollutant Discharge Elimination Systems (NPDES) requirements, and provide methods for calculations of Total Maximum Daily Loads (TMDLs) in a systematic and economical manner. The purpose of the project is to document highway runoff and constituent concentrations discharged from common highway-drainage conveyance structures in Massachusetts from four primary highway sites and four additional test sites during a two-year period. This study will also evaluate the potential transferability of these data to other highway sites by relating constituent concentrations to average daily traffic volumes. These data will be used to populate a state-wide version of the new national highway-runoff model, which will be used for estimating highway-runoff concentrations and loads throughout Massachusetts. The potential cost savings to MassHighway are significant because this Study will influence future Stormwater Management Policy. The project will substantiate those best management practices (BMPs) that are practicable for MassHighway, thereby bringing capital and operational costs (as well as justification) for stormwater management under better control.

    Language

    • English

    Project

    • Status: Active
    • Funding: $570000.00
    • Sponsor Organizations:

      Massachusetts Executive Office of Transportation

      Office of Transportation Planning, 10 Park Plaza
      Boston, MA  United States  02116
    • Project Managers:

      Pepin, Stephen

    • Performing Organizations:

      U.S. Geological Survey

      District Office
      10615 SE Cherry Blosson Drive
      Portland, OR  United States  97216
    • Principal Investigators:

      Smith, Kirk

    • Start Date: 20040813
    • Expected Completion Date: 0
    • Actual Completion Date: 20081231
    • Source Data: RiP Project 10032

    Subject/Index Terms

    Filing Info

    • Accession Number: 01460741
    • Record Type: Research project
    • Source Agency: Massachusetts Executive Office of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Jan 3 2013 1:31PM