South Atlantic Coastal Study (I)

May 2020


South Atlantic Coastal Study
Investigations (I)
Congressional Districts: 1, 2, 3, 4, 5, 6, 7,8, 9, 10, 11, 12, 13,
14, 15, 16, 17,18, 19, 20, 21, 22, 23, 24, 25, 26, 27


Section 1204 of WRDA 2016 authorizes the Secretary to conduct a comprehensive coastal study within the geographic boundaries of the South Atlantic Division (SAD) to identify the risks and vulnerabilities of those areas to increased hurricane and storm damage as a result of sea level rise; recommend measures to address the vulnerabilities; develop a long-term strategy addressing increased hurricane and storm damages that result from rising sea levels; and identify opportunities to enhance resiliency, increase sustainability, and lower risks in populated areas, areas of concentrated economic development, and areas with vulnerable environmental resources. The South Atlantic Coastal Study (SACS) is a response to this authorization. The study area includes the tidally-influenced coastal areas of Alabama, Florida, Georgia, Mississippi, North Carolina, Puerto Rico and the U.S. Virgin Islands. In addition to regional analyses of coastal vulnerability, the SACS will identify initial measures/costs that can address vulnerabilities with emphasis on regional sediment management as an actionable strategy to sustainably maintain or enhance current levels of storm protection.


a. P.L. 115-123: Bi-Partisan Budget Act of 2018, Supplemental:

Current Working Estimate $16,000,000
Allocation thru FY19 $300,000
Allocation for FY20 $6,200,000


100% Federal Cost


The SACS was initiated in August 2018 by a regional Project Delivery Team (PDT) comprised of members from all five districts across the USACE South Atlantic Division. The ‘Tier 1’ regional risk assessment has been completed and validated by stakeholders across the region. Project Performance Evaluations for all coastal storm risk projects within SAD have been completed and findings are being incorporated into the Tier 2 analysis. The U.S. Army Engineer Research and Development Center (ERDC) is close to completing all three basins (Caribbean, Atlantic and Gulf of Mexico) of Coastal Hazard System database that will be used in refining hazards associated with wave and water elevations by both federal and non-federal partners. Another key product being developed for the region is the Measures and Costs Library. All SAD districts are well underway with development of their respective State and Territory Appendices. SAJ is responsible for the Florida, Puerto Rico and U.S. Virgin Islands efforts. The regional PDT team has maintained a significant level of outreach throughout the course of the study, in particular the field workshops held, of which SAJ held 5 field workshops in Florida, one in Puerto Rico, and one in the U.S. Virgin Islands.

map of South Atlantic Coastal Study area