Southport aldermen, scientists and Corps staff debate Corps’ Wilmington Harbor channel DEIS; board adopts mitigation‑focused resolution

At a Southport Board of Aldermen workshop, city officials heard a technical briefing from the U.S. Army Corps of Engineers and testimony from local scientists and residents about the Corps’ draft Environmental Impact Statement proposing to deepen the Wilmington Harbor navigation channel from about 44 feet toward roughly 47–50 feet and, in places, widen it by as much as 500 feet. The board unanimously adopted a resolution urging stronger mitigation and monitoring and directed city staff to prepare comments for state review.

The Corps’ representative, Bob Jarvis, described the project as a navigational improvement that begins roughly 16 miles offshore and extends about 38 miles upriver to the Port of Wilmington. Jarvis said the draft EIS evaluates engineering, economic and environmental impacts and that the Corps is taking public comment during the state consistency review. He said the Corps and the port have identified possible infrastructure impacts to shorelines, sidewalks and utilities near Southport and that the city’s consultants are reviewing the technical appendices.

Why it matters: local officials and environmental groups said the draft EIS does not commit funds for long‑term monitoring or substantial habitat mitigation and that the proposal could increase wake‑induced erosion and damage bird‑nesting islands that support a large share of North Carolina’s coastal water birds. Audubon and the North Carolina Coastal Federation urged the board to press the Corps and state reviewers for enforceable mitigation, funding for monitoring and a fuller analysis of contaminants that might be stirred up by dredging.

Lindsay Addison of Audubon North Carolina, who described herself as the coastal staffer who reviewed the DEIS, said the Lower Cape Fear hosts about 10 bird‑nesting sites and supports “about 30% of the nesting coastal water birds in North Carolina.” She warned that heavier ships would produce larger wakes and ‘‘that the DEIS incorrectly assumes it will not create any more erosion along the shorelines,’’ and said the draft plan proposes no new habitat work for bird islands.

Carrie Allen of the North Carolina Coastal Federation said the Corps’ economic analysis yields a national benefit‑cost ratio of about 1.3 and that the DEIS lacks a monitoring plan. ‘‘We need a robust monitoring plan, an adaptive mitigation plan, and funding,’’ she said, adding that state and federal researchers should be funded to measure contaminants and habitat impacts.

Resident Jan LaFrancois, who said she volunteers with Audubon, told aldermen dredging crews have been in the area and that dredges are disruptive. ‘‘I see more loss than gain,’’ she said, urging the town to press for protections for Battery Island and nearby marsh habitat.

Consultants and legal counsel who spoke to the board urged multiple avenues of action. Jamie Pratt of TI Coastal Services described side‑slope geometry and said sloughing directly into the dredge prism was unlikely with the projected buffers but that ‘‘your bigger impacts are gonna come from wake‑induced erosion along the shoreline where you have larger ships.’’ Attorney Bill Carey, representing local interests, criticized the Corps’ forecast assumptions and argued that omitted mitigation and monitoring costs could reduce the Corps’ BCR below feasibility thresholds, potentially making the project economically unjustified once properly accounted for.

Board action: Alderman Holman Mosteller moved the board adopt a draft resolution calling for enforceable mitigation measures, funding for monitoring, and interjurisdictional coordination; the motion passed unanimously. The board then directed the city manager to prepare and submit comments to the North Carolina Division of Coastal Management and the Department of Environmental Quality before the state consistency comment deadline and to consider submitting supplemental comments to the Corps.

Key numbers and details cited at the workshop included the Corps’ draft depth increase to roughly 47–50 feet from about 44 feet, channel widening up to roughly 500 feet in places, an estimated roughly 37,000,000 cubic yards of material to be removed (as noted in the DEIS appendices), an estimated project construction cost cited in comments of about $1.3 billion with a commonly cited 75% federal/25% state cost split, and the Corps’ reported national benefit‑cost ratio of about 1.3. Several presenters and board members noted the DEIS shows no dedicated line item for ongoing monitoring funds.

What’s next: the board directed the manager to incorporate the meeting’s technical points into formal comments for state review (the local comment window cited in the meeting ends December 20 in the DEIS materials) and to coordinate with regional partners and legislators about mitigation funding and legal options. The board adjourned after unanimous votes on the resolution, the direction to staff and the meeting’s close.