Iliuliuk Bay Channel Navigation Improvements

Client
U.S. Army Corps of Engineers
Location
Dutch Harbor, Alaska

R&M conducted a marine geophysical survey in support of plans to establish a deeper channel into Iliuliuk Bay in Dutch Harbor, Alaska. Our team performed a combination of marine sediment sampling, bathymetric surveying, subbottom seismic reflection profiling, gradiometer surveying and terrestrial geologic reconnaissance. The  purpose of the investigation was to define the nature of the shallow shoal structure and to delineate surface and buried submarine objects and debris within the defined geophysical survey area. R&M performed an offshore geotechnical investigation in Fall 2022.

A bar at the entrance to Iliuliuk Bay prevents the deep draft vessel fleet from passing over the bar at their designed draft, resulting in light loading practices and causing inefficiencies in the delivery of goods to and from the port.

R&M geologist collecting sediment samples in Iliuliuk Bay.
Marine geophysical equipment be readied for deployment.

Services for this Project

Client
U.S. Army Corps of Engineers
Location
Dutch Harbor, Alaska

Project Team

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