Proposed Action

The proposed project would have public benefits and would result in safer and more efficient naval operations.

The Navy proposes to construct:

  • A replacement ammunition pier (approximately 1,100-feet by 125-feet)
  • Associated waterfront facilities
  • A causeway and truck turnaround 
  • A new public navigational channel inside the current breakwater for civilian boat traffic to and from Huntington Harbour

The new pier would be built to current earthquake standards, would be able to support future fleet requirements, and would provide greater separation between Navy operations and civilian activity in Anaheim Bay and along Pacific Coast Highway.

The project would include dredging for the proposed pier, turning basin, and new public navigational channel. Dredged material could be used to create a causeway and truck turnaround. Unused dredged material could be used for beneficial reuse, provided for beach replenishment (if suitable), or offshore disposal.

The proposed project would have public benefits and would result in safer and more efficient naval operations. These include:

  • The new pier would meet current earthquake standards
  • The project would support the loading of more than one medium-sized ship at a time, allowing the Navy to quickly deploy ships overseas during times of crisis
  • The project would enable larger ships to safely enter Anaheim Bay and load/unload at the new pier
  • The project would provide greater separation between Navy operations and civilian activity in Anaheim Bay and along Pacific Coast Highway, promoting increased safety and security 
  • A new channel for civilian boat traffic to and from Huntington Harbour may reduce disruptions to boaters during Navy ship transits, high-security conditions, and exercises

Planning and Construction

Seal Beach Wharf Pelican

During planning and construction, the Navy would work closely with regulatory agencies to minimize impacts on the public and environment. Construction activities would include pile driving, which could impact environmental resources. The Navy would take steps to implement measures set forth in the EA to minimize environmental impacts during construction.

Construction activities would be designed so that civilian boaters could safely transit through Anaheim Bay to and from Huntington Harbour. The expected duration for construction of the proposed project would be approximately 2.5 to 3 years.

Alternatives Studied

During development of the Draft EA, the Navy evaluated the Proposed Action and several alternatives for fulfilling the purpose and need. 

Alternative 1 (Preferred Alternative): Ammunition Pier at South Mole with Interior Public Navigational Channel 

Alternative 1 is the Navy’s preferred alternative because it best meets the purpose of and need for the Proposed Action. Implementation of Alternative 1 provides the most cost effective construction alternative without resulting in significant impacts on the environment.

Naval Weapons Station Seal Beach Ammunition Pier and Turning Basin EA - Alternative 1 MapAlternative 1 Map
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Alternative 2: Ammunition Pier at South Mole with Exterior Public Navigational Channel

Naval Weapons Station Seal Beach Ammunition Pier and Turning Basin EA - Alternative 2 MapAlternative 2 Map
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Alternative 3: Ammunition Pier Parallel to South Mole with Exterior Public Navigational Channel

Naval Weapons Station Seal Beach Ammunition Pier and Turning Basin EA - Alternative 3 MapAlternative 3 Map
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No Action Alternative: Under the No Action Alternative, the Proposed Action would not occur. As required by federal law, the No Action Alternative is carried forward for analysis in the EA, and provides a baseline for measuring the environmental impacts of the action alternatives. The No Action Alternative does not meet the Navy’s purpose and need.

Naval Weapons Station Seal Beach Ammunition Pier and Turning Basin EA - No Alternative MapNo Alternative Map
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For more information on the Proposed Action and alternatives, please see the project fact sheet or the Draft EA.


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