Tappan Zee Bridge NEPA Analysis
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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
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Tappan Zee Bridge NEPA Analysis



English
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Details:

  • Corporate Creators:
    United States. Federal Highway Administration
  • Corporate Contributors:
    New York (State). Department of Transportation
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA-HEP-16-091
  • Resource Type:
    Brief
  • Geographical Coverage:
    United States;New York
  • Corporate Publisher:
    United States. Federal Highway Administration
  • Abstract:
    Although the New York State Department of Transportation (NYSDOT) has not yet published guidance on addressing climate change impacts as part of the NEPA process, the organization has been considering the potential impacts of sea level rise on proposed projects during the NEPA process for several years. NYSDOT is concerned about the impacts of climate change, especially sea level rise and riverine flooding, on transportation infrastructure. Sea level rise may flood assets that historically have not flooded or have only experienced infrequent flooding in the past. For example, NYSDOT evaluated potential climate change impacts on the Tappan Zee Bridge reconstruction project. The Tappan Zee Bridge is a major transportation link and a large financial investment that is designed to have a long useful life. In 2013, NYSDOT performed analyses for the environmental impact statement (EIS) to determine the potential for adverse or beneficial impacts in many categories, including climate change. Specifically, NYSDOT considered the potential for flooding during the 1% annual probability flooding levels on top of end-of century sea level rise. Under this scenario, neither the bridge nor the touchdowns are projected to be exposed to flooding. NYSDOT also looked at the potential for sea level rise to decrease the vertical clearance under the bridge, thus impacting the navigable waterway.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:
    Filetype[PDF-719.71 KB]

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