Managing the Retreat from Rising Seas — Charlotte-Mecklenburg County, North Carolina: Floodplain Buyout Program

Charlotte-Mecklenburg Storm Water Services (CMSS) — a county-wide regional utility in North Carolina — has been administering a Floodplain Buyout Program to relocate vulnerable residents out of floodplains and reduce long-term flood damage. The buyout program is focused on risk reduction and flood mitigation best practices, where once bought out, properties are returned to open space uses to restore their natural beneficial flood retention and water quality improvement functions and provide other community amenities, like parks and trails. CMSS has purchased more than 400 flood-prone homes and businesses and enabled over 700 families and businesses to relocate to less vulnerable locations outside of the floodplain. CMSS has also supported a number of leaseback arrangements on a case-by-case basis with property owners to increase participation in the buyout program and reduce the county’s property maintenance costs.

As a result of the floodplain buyouts, the community has gained an additional 185 acres in open space and recreational assets and encouraged the development of newer, more resilient buildings in less vulnerable locations within Mecklenburg County. The program has been funded through a combination of federal and local government sources, with leasebacks also supporting the recapture of some costs. CMSS has invested more than $67 million to acquire flooded properties. As a result, the county estimates it has avoided an estimated $25 million in property damage and related losses to date, and prevented $300 million in future losses. Charlotte-Mecklenburg’s Floodplain Buyout Program is an example of a nationally recognized approach to supporting voluntary retreat in a riverine floodplain. Other local governments could consider adopting a comprehensive buyout program like Charlotte-Mecklenburg’s or individual program elements, like local funding options or leasebacks, to help support voluntary retreat decisions in coastal areas experiencing sea-level rise, impacts from disaster events, and land loss.

 

This case study is one of 17 case studies featured in a report written by the Georgetown Climate Center, Managing the Retreat from Rising Seas: Lessons and Tools from 17 Case Studies. Each case study tells a different story about how states, local governments, and communities across the country are approaching questions about managed retreat. Together, the case studies highlight how different types of legal and policy tools are being considered and implemented across a range of jurisdictions — from urban, suburban, and rural to riverine and coastal — to help support new and ongoing discussions on the subject. These case studies are intended to provide transferable lessons and potential management practices for coastal state and local policymakers evaluating managed retreat as one part of a strategy to adapt to climate change on the coast. 

For additional case studies and more information about managed retreat, also see Georgetown Climate Center’s Managed Retreat Toolkit.

 

Publication Date: July 15, 2020

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