Living Shoreline along Coastal Roadways Exposed to Sea Level Rise: Shore Road in Brookhaven, New York

This is one of nine engineering case studies conducted under the Transportation Engineering Approaches to Climate Resiliency (TEACR) Project. This case study explores the feasibility of using a living shoreline to protect a coastal roadway against sea level rise and storm surge. In this assessment, the research team investigated the potential impacts of predicted future sea level rise on flooding of a coastal roadway in the northeastern United States, and the potential use of a “living shoreline” to mitigate damage where possible. A living shoreline may include a combination of an engineered structure to attenuate wave energy, appropriate vegetation, and sand to stabilize the shoreline and provide nearshore habitat to allow native species of flora and fauna to flourish. The assessment focused on Shore Road, which parallels Mt. Sinai Harbor in the Town of Brookhaven located on the north shore of Long Island, New York. The research team evaluated the effects of future sea level rise on both nuisance and storm-related flooding of Shore Road. One of the results of this analysis is that Shore Road is not expected to experience daily flooding until around 2065 under the highest sea level rise scenario, but storm-related flooding and damage are happening now on a less frequent basis (i.e., yearly). The sections of roadway projected to experience frequent inundation could benefit from natural and nature-based adaptation options like living shorelines, now, to prevent wave damage. However, some combination of natural features and engineered adaptations may be required to prevent flooding over the roadway in years to come.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Maps; Photos; References; Tables;
  • Pagination: 29p
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01663168
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-HEP-17-016
  • Files: TRIS, ATRI, USDOT
  • Created Date: Feb 9 2018 7:57AM