Underwater Engineering

Collins is a pioneer in the field of underwater engineering and, in particular, the use of Professional Engineer-divers for inspections. Collins has been performing underwater facility evaluations since 1979, many of which have included design of repairs or replacements. As experts in the field, Collins’ engineer-divers are in a unique position to immediately assess the condition of underwater structures.

PROFESSIONAL ENGINEER-DIVER EVALUATIONS • Diving Operations to 220 fsw • Surface-Supplied Air and Commercial Scuba Diving • Difficult Access and Swift Current Operations • Penetration of Tunnels, Pipelines, Culverts, and Tanks • Two-Way Hard Wire Communications • Anomalous Condition Identification and Evaluation PROFESSIONAL ENGINEERING SERVICES • Condition Assessments • Preventative Maintenance Recommendations • Maintenance and Repair Recommendations and Cost Estimates • Structural Design and Rehabilitation Design • Construction Inspection and Quality Control • Constructability Reviews • Expert Testimony, Research, and Testing • Training Manuals and Seminars

NONDESTRUCTIVE & PARTIALLY DESTRUCTIVE TESTING & SAMPLING • Ultrasonic Thickness Measurement of Steel • Magnetic Particle and Radiographic Testing of Steel • Schmidt Hammer and Windsor Probe Concrete Testing • Coring and Boring of Concrete and Timber Members • Teredo and Limnoria Infestation Evaluation • Geotechnical, Sedimentary, Biological, and Chemical Sampling and Analysis UNDERWATER DOCUMENTATION • Still Photography • Video with Narrative Audio • Photomosaic Development, Assimilation, and Interpretation • Clearwater Photography for Limited Visibility Conditions REMOTELY OPERATED VEHICLE INSPECTION • Inspection in Confined Spaces and Deep Water • Remote Testing, Sampling, and Video Documentation

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