Underwater Infrastructure Inspections
OSI has accomplished various underwater structure inspections employing either diver-held video or ROV equipped with a laser ruler, sediment blaster, cathodic protection probe, and color video. Underwater videography is collected using the ROV’s built-in wide-angle color camera. All video data are recorded and displayed in real-time on a color monitor onboard the survey vessel. Vehicle position (derived using a USBL) and other various survey statistics are displayed as an overlay to the video allowing correlation with previously acquired site survey data and video trackline time stamps.
Underwater Infrastructure Fig. 1
ROV video frame of a functioning diffuser.
Underwater Infrastructure Fig. 2
Pipeline Inspection
Underwater Infrastructure Fig. 3
ROV-light-activated cathodic protection gauge on pipeline.
Representative Projects
Ocean Outfall Monitoring: Ponce, Puerto Rico
Ocean Surveys provided water quality monitoring services at an ocean outfall monitoring site to support a 301(h) Waiver and Mixing Zone Validation Study offshore Ponce, Puerto Rico. OSI field teams conducted 11 quarterly surveys at the Ponce effluent outfall. Services ...