The central portion of the Blaine Wetland Sanctuary is also referred to by its regulatory agency name, branch 3. This section covers 103 acres. The site was designated as branch 3 by regulatory agencies as a part of the wetland banking application process. A wetland bank allows developers or other agencies to purchase wetland credits to offset impacts to wetlands in other areas. Work on branch 3 started in 2008 when the City of Blaine contracted with Critical Connections Ecological Services to develop a restoration and management plan.
In 2010 Critical Connections Ecological Services partnered with Applied Ecological Services to begin the restoration. Targeted restoration activities included prescribed fire and removal of thatch.
The branch 3 wetland bank was created by the Blaine Economic Development Authority and proceeds from the bank are used by the Blaine EDA for economic development related projects throughout the city.