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Juneau Airport EIS & Slough Studies
To meet increasing demands and required safety enhancements, Juneau International Airport (JNU) needed to complete an environmental impact statement (EIS) for proposed facility improvements.
Why does this project matter?
JNU is bounded to the west by the mercurial Mendenhall River, to the north by commercial development, and to the south and east by the tidal wetlands of the 4,000-acre Mendenhall Wetlands State Game Refuge.
What is ESA doing to help?
ESA was part of a team in collaboration with the Federal Aviation Administration that prepared the EIS. We led the water resources analysis including river and tidal geomorphology and water quality. We prepared a Water Resources Technical Working Paper documenting the conditions of surrounding rivers and creeks, ponds, palustrine and estuarine wetlands, and groundwater. In support of three channel evolution scenarios for East Runway Slough, we evaluated the impacts of various alternatives for runway safety and navigational improvements. We led a technical memorandum on potential tidal channel impacts on East Runway Slough and lower floodplain impacts on the Mendenhall River. Our team met with resource agency staff to review methods, findings, and conclusions on impacts and to confirm appropriate mitigation for completing the Final EIS.
ESA helped ensure the two main goals of the airport and stakeholders throughout the environmental process: maintaining a safe operating environment at JNU, and protecting the quality and value of the resources around the airport.
Connect with Our Team
Client Federal Aviation Administration
Location Juneau, AK
Market Airports / Aviation
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The deadline for industry associations to submit their comments is February 25, 2022.