Environmental Impact Statement and Environmental Assessment

With the passage and implementation of the National Environmental Policy Act of 1969, environmental impact assessments of water resource projects under the US Army Corps of Engineers and other federal agencies assumed a greater level of importance. An environmental impact statement (EIS) is needed when a project is expected to have a significant impact on the existing ecosystem. Following an agreement with resource agencies, the EIS is forwarded to the US Fish and Wildlife Service for concurrence. The approved EIS is included with a report that recommends construction and forwarded to Congress for authorization. Cumulative effects analysis recognizes that the most serious environmental impacts may result from the combination of individually minor effects of multiple actions over time, rather than the direct or indirect effects of a particular action. An environmental assessment (EA) is used when there are no significant impacts expected from a recommended action for a navigation project.


  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 37-41
  • Monograph Title: Inland Navigation: Environmental Sustainability

Subject/Index Terms

Filing Info

  • Accession Number: 01695987
  • Record Type: Publication
  • ISBN: 9780784481516
  • Files: TRIS, ASCE
  • Created Date: Jan 10 2019 3:02PM