Public Notices

A public notice is the primary method for advising all interested parties of a proposed activity for which a permit is sought. Soliciting comments and information necessary to evaluate the probable impacts on the public interest. Public notices are also published to inform the public about new or proposed regulations, policies, guidance or permit procedures.  

Public Notices published by the Los Angeles District are posted on these three pages. There are two types of Public Notices; Regulatory and Project Public Notices. Comments are due by the expiration date of the public notice. 

Only comments submitted by email or in hard copy format through a delivery service, such as the U.S. Postal Service, can be accepted.   Comments must be submitted to the address listed in the public notice.

Public Notice Manager

SPL-2024-0703-NLH-Dana Point Harbor West Breakwater EA

Los Angeles
Published July 3, 2024
Expiration date: 8/9/2024

PUBLIC NOTICE


Pursuant to the National Environmental Policy Act (NEPA), the U.S. Army Corps of Engineers, Los Angeles District (USACE) is preparing an Environmental Assessment (EA) to evaluate potential environmental impacts for the repair of the Dana Point Harbor West Breakwater (Proposed Action) [CECWP_SPL_112403]. If the EA identifies significant impacts that cannot be mitigated to a level that is less than significant, USACE would prepare an Environmental Impact Statement. If no unmitigable, significant impacts are identified, then USACE would prepare a Finding of No Significant Impact (FONSI). Concurrently, USACE is preparing a 404(b)(1) evaluation pursuant to Section 404 of the Clean Water Act for discharges of dredge material into waters of the U.S. 

Purpose and Description of the Proposed Action 

Dana Point West Breakwater provides protection to Dana Point Harbor from ocean waves and currents on the seaward side. The purpose of the Proposed Action is to restore the West Breakwater to the original design and dimensions to continue to provide protection to the harbor from the waves and currents, to ensure navigational safety, and to prevent damage and structural degradation of harbor facilities. The Proposed Action consists of performing repairs to the West Breakwater through replacing displaced armor stone from the crest to the toe of the slope, both on the seaward and harbor sides, and resetting some of the existing stone to interlock with the new stone. Repairs would not extend beyond the existing footprint. New armor stone would be sourced from either an offshore or land-based quarry. Work is expected to be completed by either a barge-mounted crane and flat-deck barges from the harbor side of the structure, or from a land-based crane that remains on the structure crest and progressively moves seaward as the repairs progress with delivery of stone by truck. 

For water-based construction, two assistance tugs will be required. If construction is conducted by water, dredging of a shoal on the leeward side of the breakwater may be required for access. It is expected the quantity of material will be no more than 45,000 cubic yards to obtain a depth of -12 feet Mean Lower Low Water (MLLW). This work is expected to be performed by either a mechanical or hydraulic dredge. Dredge material would be placed approximately two miles away at the Nearshore Placement Site. 

For land-based construction, temporary modification of the West Breakwater to include an access ramp may be required to allow for access of construction equipment. All temporary material used for construction will be removed by the contractor at the end of the project.   

The proposed breakwater repairs are expected to take up to approximately six months, but this schedule is dependent on many factors, including weather conditions, equipment and material availability, and availability/constraints of funding. Activities would generally occur Monday – Saturday during normal business hours. No work would be done on Sundays and Federal holidays.  

Expected Environmental Impacts and Environmental Compliance 

Environmental resources that will be analyzed for effects from the proposed project modification include oceanography and water quality, marine biological resources, cultural resources, air quality, noise, vessel traffic and safety, recreation uses, land/water uses, ground transportation, and traffic. It is anticipated that potential impacts to environmental resources would be similar to previous repairs performed in 1983 and would be less than significant.  

A Clean Water Act Section 404(b)(1) evaluation and a request for Section 401 Water Quality Certification will be prepared by USACE and submitted to the San Diego Regional Water Quality Control Board for potential minor access dredging. Water quality would be monitored during sediment excavation and sediment placement activities.  

USACE has developed an eelgrass mitigation plan to address anticipated impacts to eelgrass in accordance with the Southern California Eelgrass Mitigation Policy. Surfgrass and eelgrass within the Federal channel and the Nearshore Placement Site have been identified, surveyed and mapped to avoid potential impacts to the maximum extent possible. 

Coordination and, if needed, consultation with the National Marine Fisheries Service and U.S. Fish and Wildlife Service would be conducted in compliance with the Endangered Species Act, the Magnuson-Stevens Fishery Conservation and Management Act, and the Marine Mammal Protection Act. Coordination with the California Coastal Commission in compliance with the Coastal Zone Management Act is ongoing. USACE has completed consultation with local tribes and the State Historic Preservation Officer on the proposed project pursuant to Section 106 of the National Historic Preservation Act. USACE will also coordinate with the U.S. Coast Guard to ensure compliance with navigation safety requirements. 

Comments on this public notice will be accepted through Aug. 2, 2024. Comments may be submitted electronically to: Victoria.d.gartman@usace.army.mil

DANA POINT HARBOR BREAKWATER REPAIR PROJECT AREAS

A map showing repair areas for the Dana Point Harbor Breakwater. The map legend displays three repair categories that are color-coded to indicate type.