In addition to the services offered in our Nondestructive Testing Services page we also offer the following Underwater Inspection Services. These can be done by us or we can provide an Underwater Inspection Specialist to oversee and coordinate your inspection project. We can also act as a Third party Client Representative ensuring your inspection program is conducted as contractually specified.

The following is a brief description, but not limited to, of a typical underwater platform inspection.

Level I Inspection

General swim through observing and reporting on the following:

1. Overall general condition of structure.
2. Marine growth survey in accordance with rating system ( marine growth affects loading and drag created by water resistance)
3. Anode wastage or impressed current system functionality
4. Cathodic Protection (CP) system is checked by measuring the voltage in the water surrounding the structure
5. Paint or marine coating condition
6. Any gross anomalies i.e. dents, indentations, chaffing and any other physical damage e.g. supply vessel impacts in the splash zone
7. Presence of debris on the structure which could affect the CP system and increase the loading
8. Other debris which could compromise safety e.g. frayed mooring lines, fishing lines (Diver safety or Vessel props becoming entangled)
9. Scouring or buildup on sea bed members
10. May be necessary to perform random UT thickness checks on members if determined to be flooded
11. Video survey of complete structure

Level II Inspection

If determined from Level I Inspection that there are areas that need further investigation then the Level II Inspection is conducted and can include the following:

1. Water blasting or grit blasting to expose suspect areas
2. Magnetic Particle Inspection if discontinuities such as cracks are suspected
3. Ultrasonic Inspection
4. Still photography for close inspection
5. Flooded member detection if cracks or indentations are observed

This phase can be time consuming depending on what was found in the Level I Inspection since the inspections are more detailed and recording methods required are very precise.

Please contact us for more information on our Underwater Inspection & Nondestructive Testing and Consulting Services.