As salt marshes struggle to keep up with sea level rise, natural resource managers and agencies are increasingly utilizing nature-based solutions and exploring Beneficial Use of Dredged Material (BUDM) for marsh restoration. A United States Army Corps of Engineers (USACE) BUDM project in cooperation with The Wetlands Institute and the State of New Jersey at the Scotch Bonnet Island wetlands, in Stone Harbor, NJ, USA provided a unique opportunity to measure hydrodynamic and morphologic conditions in two marsh channels (North and South) before, during, and immediately after the material placement to better understand impact to these parameters. This paper focuses on pre-placement observations of tides, flow velocities, and pre-placement channel bathymetry and presents a methodology to estimate volumetric flow at channel transects, with a future goal of evaluating change in tidal prism as a potential consequence of BUDM. Using SONAR survey, satellite imagery, and walking survey measurements, area models at channel transects were created. From Nov.-Dec. 2023, with the ebb and flood stages of tide, the North and South Channels both saw phase-averaged peak discharge of −2.9 m3/s but inflow of 3.8 m3/s and 2.0 m3/s respectively.