Project:

Beach Profiles & Inlet Survey for Ocean Isle, Holden Beach, & Shallotte Inlet

client

US Army Corps of Engineers, Wilmington District Office

location

Brunswick County, North Carolina

services

Hydrographic, Topographic, GIS

summary

High-density topo/bathy surveys for beach pre- and post- construction monitoring, using survey line schemes specifically designed for accurate and seamless topo/bathy Digital Elevation Models.

partners

Greenhorne & O’Mara, Inc.

description

Geodynamics partnered with Greenhorne & O’Mara, Inc. to perform detailed 2D and 3D topographic and bathymetric surveys for Ocean Isle Beach, Holden Beach and Shallotte Inlet in Brunswick County, NC. The combination of equipment and specialized acquisition and processing methodology allowed our group to achieve seamless 2D and 3D topo/bathy profiling and subsequent digital elevation modeling for Ocean Isle Beach, Holden Beach and Shallotte Inlet with the highest allowable accuracy. Bathymetric data is acquired with an Odom CV100 ultra-shallow water digital singlebeam sonar system that is integrated on the research vessel Shoals; a 20’ shallow water platform which permits the acquisition of spatially dense bathymetric data across all portions of the survey area and to achieve maximum overlap with topographic data in the surfzone.

Follow-up surveys in Brunswick County utilized the NC Geodetic Survey Shallotte Virtual Reference Station (VRS) to provide the surveyors with continuously fixed RTK solutions for navigation, tides, motion-aiding and topographic elevations.