WETLAND DELINEATION, SITE DESIGN, AND PERMITTING
Koerntgen and Falletta
Grand Island, New York
(716) 773-6872 x203
DE’s clients purchased two adjacent parcels of land in Grand Island, New York with the intention of subdividing the properties and constructing five residential homes.
DE conducted a wetland delineation in accordance with the Corps of Engineers Wetland Delineation Manual, and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northcentral and Northeast Region (Version 2) to determine the extent of wetland areas in the proposed project areas.
DE was excited to learn Lieutenant Colonel Jason Toth, district commander of the Buffalo District U.S. Army Corps of Engineers was joining the Corps’ field verification team, who noted site was complex, yet did not question the flagged wetland boundary.
The initial site design impacted more than 0.1 acres of wetland, which would have required compensatory mitigation under Nationwide General Permit 29. To reduce wetland impacts below this threshold designed components were strategically arranged to minimize wetland impacts; an open bottom arch culvert was installed over a drainageway; water features were resized; and final grading was designed with steeper slopes near wetlands to maximize available upland space. This effort successfully reduced wetland impacts on each subdivision to 0.066 and 0.089 acres, respectively. Eliminating compensatory mitigation from this project saved the clients tens of thousands of dollars and protected habitat used by native wildlife.