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About Northwest Maritime Industrial Clients Sector and Side Scan Sonar Imaging and Inspection Case Studies Contact Northwest Maritime Industrial
Services Barge and Crane Waterway Contruction and Maintenance Division
Side Scan Sonar
Sector Scan Sonar Imaging
High Resolution Underwater Video


Precision underwater sonar imaging and
inspection services

While many companies boast the capabilities of their sonar technology, Northwest Maritime delivers. We offer a unique combination of portability, state-of-the-art sonar equipment, the ability to access waterways typically considered inaccessible, and the experience of a top credentialed crew.

A safe, diverless, portable operation

Unlike competitor ROV equipment or commercial divers, our entire Sonar Imaging and Research operation is managed above-water in real-time by our sonar technician — making safety our top priority. We use two unique yet complimentary sonar technologies to provide you with some of the most detailed, highest resolution underwater images available in the industry.

With a relatively small vessel matched with the pinpoint precision of our sonar technology, we’re able to operate in waters typically considered inaccessible. From high velocity flow environments, to small and minimally maneuverable spaces, dark, murky waters, or areas with potential high velocity current, our technology sets us apart.

Read more about our sonar technology now
Contact us now to receive a customized project estimate


Just a few project examples:

  • Detailed underwater imaging and mapping to aid clean-up projects
  • Hydropower/dam imaging and inspections
  • Salvage operations
  • Hydraulic construction and bridge inspections
  • Waterway sonar imaging to aid dredging and maintenance operations
  • Pipeline and floodgate inspections
  • Sonar imaging to aid reclamation, log retrieval, and waste removal projects

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Image 1 — Our highly maneuverable, relatively small sonar vessel can easily work in small, high velocity flow environments.


Image 2 — Our ability to configure equipment to fit the situation is the cornerstone of our success. Pictured here, the sonar head is attached to a concrete block weight and lowered to detect real-time underwater images in extremely high velocity water flow. The sonar and crane worked in tandem to immediately remove the obstruction on the first attempt.