Underwater Engineering

Collins is a pioneer in the field of underwater engineering and, in particular, the use of 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.

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 ENGINEERING SERVICES Condition Assessments Preventive 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 Underwater Acoustic Imaging Still Photography Video with Narrative Audio Photomosaic Development, Assimilation, and Interpretation Clearwater Photography for Limited Visibility Conditions REMOTELY OPERATED VEHICLE (ROV) INSPECTION Inspection in Confined Spaces and Deep Water Remote Testing, Sampling, and Video Documentation