Noble Consultants was hired as a subcontractor to Towill, Inc. on this project to provide a bathymetric survey of the mouth of the Eel River and the confluence of the Salt River. NCI’s effort was part of an overall topographic mapping along the Eel River for the U.S. Army Corps of Engineers. Single-beam bathymetric soundings were collected and a bathymetric chart was prepared with sounding and contours.