Subsea cable and pipeline are critical commercial assets and require routine inspection for fatigue, bending and external damage, scour, and sediment migration. Suspended cables and pipelines in high current areas can be prone to early fatigue from "strumming".
TerraSond uses multibeam and side scan sonar systems for the inspection of underwater cables and pipelines. The high resolution imagery obtained allows our staff to discover and interpret problem areas.
Multibeam image showing cable condition.
- Submarine Transmission Cable Installation
- Cook Inlet, Alaska
- We provided surveying and positioning services to support a 138-kilovolt (kV) submarine cable installation project. These services included a desk-top study, a pre-lay marine survey, a post-lay survey, Global Positioning System (GPS) control survey, and other support services during construction.
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