06/25/2026
Kraken Robotics’ Acoustic Corer was used by Weeks Marine, Inc. to support subsurface imaging of buried obstructions in the Hudson River, where new rail tunnels are being developed to provide additional capacity and operational flexibility for one of the busiest passenger rail corridors in the USA.
Before tunnel boring could begin, shallow post-glacial sediments within the Hudson River channel required stabilisation. Weeks Marine used cofferdam structures to drain sections of the river and inject a mixture of soil, concrete, and water into the riverbed to strengthen the shallow soils.
A key challenge was identifying buried objects and obstructions within the upper part of the seabed that could hinder the soil stabilisation phase.
Across a 365 m² project area, Kraken completed 102 Acoustic Corer deployments across 34 survey rows. The overlapping data was merged into a single 3D volume, enabling the interpretation of 520 buried discrete anomalies.
The Acoustic Corer provides high-resolution 3D acoustic imaging of the sub-seabed, supporting the detection and interpretation of buried objects, stratigraphy, and shallow geological features. For Weeks Marine, this information helped guide project planning and reduce the risk of encountering subsurface obstructions during construction.
Learn more about Kraken’s Acoustic Corer: https://www.krakenrobotics.com/services/acoustic-coring/
