The internal preserves also connect to 100± acre on-site slough preserve which is part of a much larger off-site wetland slough system that allows regional surface waters to flow from north to south. As part of the slough preserve, four wading bird marshes were created and graded to varying depths to allow the concentration of prey for wading birds at alternating times of the year, as water levels seasonally rise and recede. The slough preserve also includes a buffer adjacent to the development consisting of riprap and densely planted vegetation to prevent secondary impacts from occurring. Off-site mitigation includes a 107± acre mitigation parcel as habitat compensation for wide ranging mammals including the Florida panther and Florida black bear. Off-site mitigation activities include upland and wetland enhancement and restoration through the hand removal of exotics and planting with native vegetation. This project was permitted through the U.S. Army Corps of Engineers, South Florida Water Management District, and U.S. Fish and Wildlife Service.
The construction of Riverstone (f.k.a. Terafina) resulted in unavoidable impacts to wetlands and wide ranging mammal habitat. To offset these impacts, the project included both on- and off-site, upland and wetland enhancement and preservation. On-site mitigation included the establishment of five interconnected preserve areas located within the interior of the development plan which were enhanced through exotic removal and supplemental planting.