New Jersey Waterways Sediment Characterization
- GIS Database
Building a GIS Database of Dredged Material Disposal Facilities
The first project consists of compiling a modern up-to-date GIS database of known dredged material disposal facilities known as confined disposal facilities (CDFs). The database is to include include characterization of dredged material holdings, estimated quantity, use history, and ownership.
Confined disposal facilities are identified and delineated though the use aerial photography in GIS. After they are identified, they are visited by a field crew that collects sediment samples and X, Y, Z coordinates. The sediment samples are collected with soil augers, piston cores, and soil probes to attain samples from the surface of the CDF down to the top of the salt marsh. The coordinates are gathered with RTK GPS surveying equipment covering the CDF. With this data the volume of can be determined for each individual CDF. The ownership and history are found through lot and block parcel IDs.