From EyeROV Services
Bridges that cross waterways often have foundation elements located in water to provide the most economical total design. When these elements are continuously submerged or submerged during periods of significant flow, underwater inspection techniques and management procedures are used to establish their condition so that failures can be avoided.
Underwater inspections can play an important part in an overall bridge maintenance and management program. Underwater material damage and deterioration, and scour-related undermining may not be apparent above water until the damage has become so severe that remedial actions are extremely expensive. Early detection of Underwater distress allows the implementation of cost-effective repairs. Underwater inspections can also reduce the cost of in-water repair work. Engineers can better design repairs when the exact extent of damage is available in detailed underwater inspection reports. Better delimitation of repairs below water reduces the number of unknown conditions a contractor must consider in bidding, thus reducing risk to the contractor, and generally resulting in lower bid prices and fewer contract modifications during the repair work for the bridge owner.
- Pile/Pier Condition Assessment
- Scour Profiling
- Pre-Post Rehabilitation Surveys
Underwater inspection of submerged areas of bridge
Bridges that cross waterways often have foundation and substructure elements located underwater to provide the most economical overall design. It is important that the entire bridge is inspected at specified intervals not only to ensure the safety of the bridge but also to initiate any repair/rehabilitation work well in advance so that the bridge remains functional. Unfortunately, the condition of the substructure and foundation underwater cannot be easily determined as the condition of those parts of the bridge located above water. The environment underwater is harsher and requires special equipment and methods. As these elements are continuously submerged, underwater inspection and management techniques must be undertaken to establish their condition so that unsafe conditions can be avoided.
RDSO guidelines for railway bridge inspection
Bridges that cross waterways often have foundation and substructure elements located underwater to provide the most economical overall design. It is important that the entire bridge is inspected at a specified interval not only to ensure safety of the bridge, but also to initiate any repair/rehabilitation work well in advance so that the bridge remains functional.
Reporting of underwater damages
After conducting an inspection ROV raw video footage is collected. Sensor data are overlaid on the video and geo-tagged. A software report is provided by specifying the geolocation of damages.
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