Pollutant Load Reductions for Total Maximum Daily Loads for Highways (2013) / Chapter Skim
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Pages 55-63
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From page 55... ...
55 Virginia Department of Transportation April 16, 2012 Tracey Harmon, Environmental Division; Roy Mills, Location and Design; Morris Walton, Maintenance The Virginia Department of Transportation has, like most DOT's, a very complex organizational structure, with each division operating within its own silo in terms of budgets, communication, roles and responsibilities, etc. In fact, one of the greatest accomplishments to date noted by the interviewees has been the increased awareness of the DOT's responsibility with regard to compliance with the MS4 Permit requirements including compliance with the growing number of TMDLs being developed across the Commonwealth.
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From page 56... ...
56 ODOT does not currently participate directly in TMDL development; however, they do provide comments through the public comment period of adopting a new CGP. It is anticipated that participation in the development of future TMDLs will be necessary if ODOT is assigned a specific WLA or if specific pollutants for post construction discharges are identified.
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From page 57... ...
57 The micro-pool wet extended detention basin was noted as the most common practice due to its cost-effective construction and maintenance (currently used in non-TMDL regulated MS4 areas) ; gravel wetlands have been used on projects with no-net loading requirements resulting from the 404 certification; however, they are noted for their high cost of construction.
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From page 58... ...
58 to implementing a TMDL program such as a high water table (especially in Kent & Sussex Counties) , poor drainage off the landscape, and slope restrictions due to the flat topography.
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59 Caltrans has a number of unique challenges in implementing their TMDL program. The number one problem identified is a lack of financial resources; in particular, there is a perception that the DOT should share a commensurate level of funding with other stakeholders, yet they are typically only a minor part of a watershed (<5%)
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From page 60... ...
60 through an annual conference that brings together the design, construction, and maintenance personnel. NCDOT utilizes an Encroachment Permitting process which requires that any adjacent property applying for a NCDOT permit to connect to the transportation stormwater system be certified as properly permitted (e.g., NPDES stormwater permit or state stormwater permit)
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From page 61... ...
61 are a meaningful source or contributor of the pollutant of concern. WSDOT feels, in the absence of site-specific stormwater outfall data, a numeric WLA assigned to WSDOT is presumptuous and without just cause.
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From page 62... ...
62 and one for MS4s. For smaller TMDLs, MnDOT requests an individual WLA (as written in a Memorandum of Understanding with the local state agency, the Minnesota Pollution Control Agency [PCA]
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From page 63... ...
Abbreviations used without definitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI–NA Airports Council International–North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012) NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board PHMSA Pipeline and Hazardous Materials Safety Administration RITA Research and Innovative Technology Administration SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005)
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