Naval architecture, marine engineering, and consulting services since 1973
Columbia-Sentinel Engineers, Inc. is a professional engineering design and consulting practice based in Seattle, Washington. It has provided naval architecture, marine engineering, industrial engineering, and management consulting exclusively to the marine industry since 1973.
Comprehensive vessel design and modification services utilizing advanced analytical tools to ensure regulatory compliance and structural integrity.
Structural design using aluminum, mild steel, and high-strength steels, including finite element analysis (FEA) to verify ship structures.
Intact and damaged stability assessments utilizing GHS software to meet regulatory standards and provide practical operational information.
Incline experiments and stability booklet preparation with a focus on practical operational data for vessel captains.
Engineering for hull lengthening, sponson additions, and widening to increase carrying capacity or open deck area.
Designs for shelter decks, superstructures, and new accommodation spaces that comply with regulatory requirements.
Design and structural assessment of A-frames, launch and recovery systems (LARS), davit foundations, and lifting pad eyes.
Custom steel and aluminum designs for landing craft, small passenger vessels (T-boats), and high-speed aluminum boats.
Mechanical, propulsion, and specialized marine systems engineering to support vessel operation, maintenance, and compliance.
Optical alignments, bearing reaction calculations, and strain gage analysis for propeller shafts and propulsion machinery.
Testing and certification of pulling power to comply with towing and safety regulations.
Engineering and lofting packages for specialized systems like sonar gondolas, moon pools, and loading ramps.
Design of drydocks and floating aluminum or steel piers, alongside travel lift and marine railway certifications.
Independent technical reviews, hull inspections, and certification management to ensure compliance with classification societies and maritime regulations.
Liaison services to secure project and design approvals from classification societies such as ABS, DNV, and RINA.
Engineering sign-off and documentation management for USCG SFLC8634 drydock certifications.
Structural integrity inspections for steel and aluminum hulls, drydocks, and specialized equipment like propane tanks.
Accurate deadweight surveys to determine barge capacities, primarily serving the marine construction industry.
Technical advisory, project management, and owner's representation for ship construction and repair projects.
Independent project management and quality assurance inspections to mitigate fabrication errors and prevent costly delays.
Utilizing 3D scanning technology to perform accurate vessel checks and measurements when physical access is limited.
Custom software configurations to help vessel operators safely calculate and verify loading conditions.
Marine · Ports & Harbors · Natural Resources
Seattle, WA · Marine · Client: Washington State Ferries
Conducted incline testing and developed successful stability booklets for Washington State Ferries to ensure regulatory compliance and operational safety.