US Army Corps of Engineers
South Atlantic Division Website Website

South Atlantic Coastal Study - SACS

SACS South Atlantic Coastal Study map graphic

Technical Study Products

There will be a total of 12 study products in this study. Information on each technical product will be provided here when available.

RSM Optimization Update

State Appendices

An appendix will also be provided for each state and made available here

  • Alabama
  • Georgia
  • Florida
  • Mississippi
  • North Carolina
  • South Carolina
  • Puerto Rico
  • U.S Virgin Islands

Measures & Costs Library

Detailed list of CSRM measures and their costs developed to a screening level for use in USACE and stakeholder planning

Focus Area Action Strategies (FAAS)

FAAS will use SACS products in combination with other resources to develop actionable risk reduction strategies with stakeholders. FAAS will serve as examples of how vulnerabilities in other high risk locations can be addressed.

Planning Aid Report

Report of priority biological resource habitats in the South Atlantic region that are vulnerable to harm from coastal storms and sea level rise with a focus on areas used by federally-listed species. Report will also include a description of risk to coastal National Wildlife Refuges

Planning Aid Report

Study Overview

The study will be modeled closely after the North Atlantic Coast Comprehensive Study (NACCS), a Congressional response and precedent-setting vulnerability and flood risk-reduction study completed for the north Atlantic coastline in the wake of Hurricane Sandy. The study will conduct regional analyses of coastal risk and identify initial measures/costs that can address vulnerabilities with emphasis on regional sediment management (RSM) as an actionable strategy to sustainably maintain or enhance current levels of coastal storm risk reduction.

Study Goals

  1. Provide a Common Operating Picture of Coastal Risk
  • Provide decision-makers at all levels with a comprehensive and consistent regional assessment of coastal risk.

2. Identify High-Risk Locations and Focus Current and Future Resources

  • Enable resources to be focused on the most vulnerable areas.

3. Identify and Assess Risk Reduction Actions

  • Assess actions that would reduce risk to vulnerable coastal populations.
  1. Promote and Support Resilient Coastal Communities
  • Ensure a sustainable coastal landscape system, considering future sea level rise scenarios and climate change. 
  • Provide information to stakeholders to optimize existing efforts to reduce risk.
  1. Promote Sustainable Projects and Programs
  • Develop and provide consistent foundational elements to support coastal studies and projects. 
  • Regionally manage projects through Regional Sediment Management and other opportunities.
  1. Leverage Supplemental Actions
  • Multiple supplemental studies and construction efforts will inform, and be informed by, the SACS.


Section 1204, WRDA 2016

  • Identify risks and vulnerabilities of [coastal areas within SAD AOR] to increased hurricane and storm damage as a result of sea level rise (SLR).
  • (b)(1) Conduct a comprehensive analysis of current coastal storm risk management measures with an emphasis on regional sediment management practices to sustain/enhance current storm protection.
  • (b)(3) Recommend measures to address coastal vulnerability of areas affected by SLR.
  • (b)(4) Develop a long-term strategy to address increased hurricane/storm damages resulting from SLR and identify opportunities to enhance resiliency and lower risks in –
    • populated areas 
    • areas of concentrated economic development; and 
    • areas with vulnerable environmental resources 
  • (c) Submit a report recommending specific and detailed actions.

Statement of Study Area

  • Over 65,000 miles of tidally influenced coastline in the South Atlantic Division area of responsibility affected by sea level rise (SLR) where hurricane and storm damages are occurring, or are forecast to occur.
  • Areas that are not subject to hurricane and storm damage associated with coastal processes are outside the scope of the study (i.e., areas subject to inland/freshwater flooding).
Video by Richy Rosado
South Atlantic Coastal Study - Vision Meeting #1
U.S. Army Corps of Engineers, Jacksonville District
Feb. 27, 2019 | 49:46
The South Atlantic Coastal Study (SACS) is located within the coastal areas of the USACE South Atlantic Division which includes the states Alabama, Florida, Georgia, Mississippi and North Carolina.

The study will identify the risks
and vulnerabilities of those areas to increased hurricane and storm damage as a result of sea level rise, and identify specific and detailed actions to mitigate risks.

SACS will proactively address the coastal storm and flood risks of vulnerable coastal populations, property, ecosystems, economies, and infrastructure along the south Atlantic coastline now and into the future.

The assessment will apply lessons learned from the North Atlantic Coast Comprehensive Study (NACCS), a Congressional response and precedent-setting vulnerability and flood risk-reduction study completed for the north Atlantic coastline in the wake of Hurricane Sandy.

Latest Updates

May 2020 SACS Newsletter
Get the latest project updates via our monthly newsletter

Quarterly Progress Briefing
A quarterly progress briefing on the SACS project was held for all interested stakeholders on June 29th. Slides from the presentation are available here and a video recording is available in the playlist at the bottom of this site.

SACS FSBPA Presentation
South Atlantic Coastal Study Team members present at FSBPA Tech Conference, in Sarasota, February 5-7, 2020.

Shared Vision

"The SACS vision is to provide a common understanding of risk from coastal storms and sea level rise to support resilient communities and habitats.  This collaborative effort will leverage stakeholders' actions to plan and implement cohesive coastal storm risk management strategies along the South Atlantic and Gulf Coast shorelines, including the territories of Puerto Rico and the U.S. Virgin Islands."

Study Schedule

  • August 2018 – Study Initiation
  • August 2019 – Shared Vision Milestone
  • August 2021- Recommendations Milestone
  • October 2021 – Draft Watershed Plan/Report
  • August 2022 – Final Watershed Plan

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