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Naval Air Station (NAS) North Island Aircraft Carriers Project Menu


Welcome to the United States (U.S.) Department of the Navy’s (Navy) environmental planning website for the Supplemental Environmental Impact Statement (SEIS) for Improving Homeport Facilities for Three NIMITZ-Class Aircraft Carriers in Support of the U.S. Pacific Fleet. This website is an online resource for information about the environmental review process and public involvement opportunities.

Naval Air Station (NAS) North Island, Coronado, California is the homeport for three aircraft carriers and provides port facilities for visiting or transient aircraft carriers periodically. The new SEIS will address current mission objectives, routine pier-side maintenance activities and proposed electrical shoreside power infrastructure. This may result in three aircraft carriers being in port at the same time at NAS North Island for more intermittent, nonconsecutive days per year than analyzed in prior National Environmental Policy Act documents.

The presence of three aircraft carriers may include all three NAS North Island-homeported aircraft carriers or two NAS North Island-homeported aircraft carriers and one transient aircraft carrier. Transient FORD-Class aircraft carriers may berth at NAS North Island once deployed on the West Coast. The proposal does not include homeporting any additional aircraft carriers at NAS North Island.

The Navy will study how this action may impact environmental resources, such as traffic, air quality, socioeconomics, and environmental justice.

The Navy is preparing a Supplemental Environmental Impact Statement in accordance with the National Environmental Policy Act of 1969 and invited public input on the scope of the SEIS including identification of potential alternatives, information, and analyses relevant to the Proposed Action, identification of environmental concerns, and issues the public would like to see addressed in the SEIS.

The Navy appreciates all of the comments received. Comments will be considered and addressed in the Draft SEIS, which is expected to be released in the Summer of 2024.  During the public comment period for the Draft SEIS, the public will have another opportunity to provide input on the draft analysis of the Proposed Action and the potential impacts on the environment. 


Figure 1. Project Location. Naval Air Station North Island is part of Naval Base Coronado and encompasses approximately 2,800 acres of land on the western half of Coronado Island. The berths capable of supporting aircraft carriers are located on the northeast side of North Island, in San Diego Bay, adjacent to the City of Coronado and west of downtown San Diego.

The electrical upgrades needed to support next-generation aircraft carriers may extend off base along the utility corridor on 1st Street in Coronado.