Investigating Soil Conditions for Installation of Green Infrastructure Bioswales

Newtown Creek NYCDEP OGI


Newtown Creek NYCDEP OGI


Brooklyn, NY


New York City Economic Development Corporation; New York Department of Environmental Protection

AKRF’s geotechnical group investigated soil conditions in the Newtown Creek and 26th Ward Water Pollution Control Plant (WPCP) tributary areas of Brooklyn, NY. This investigation was part of a New York Department of Environmental Protection (NYCDEP) program to determine where stormwater runoff could effectively infiltrate back into the subsurface soils, rather than drain into catchbasins and sewers.

AKRF was instrumental in reviewing the data collected from these investigative efforts to provide interim and summary reports for these tributary areas. These reports provided technical feedback regarding test results and the potential for using green infrastructure bioswales at certain locations.

Over the next 20 years, NYCDEP is planning to provide funding for these green infrastructure installations, as well as means to reduce Combined Sewer Outfalls (CSOs), throughout New York City’s five boroughs. The overall program is expected to include thousands of borings and permeability tests to determine the suitability of soils for the installation of green infrastructure bioswales.  

Geotechnical Engineering Overview