SSCN-SEGMENT-2-E: Subsea Cable Route Survey Bathymetry

Between 7 March 2024 and 4 April 2024, a hydrographic survey was conducted within the Beagle Marine Park to map the seafloor for the SUBCO Subsea Cable Network (SSCN) Segment 2-E. The data, collected by EGS Survey Pty Ltd from the RV Bold Explorer, was designed to identify a secure cable route by locating obstacles and assessing seabed conditions for ploughing and burial. This dataset supports the engineering, construction, and maintenance planning for a major telecommunications cable trunk route between Perth and Sydney.

Use Cases

• Identifying seabed obstacles like rock outcrops and shipwrecks for cable route planning.
• Assessing seafloor slopes to ensure they are within safe burial limits (<6°).
• Planning cable ploughing and burial operations based on seabed composition data.
• Supporting environmental impact assessments within a designated Marine Park.

Strengths

• Data collected during a specific, recent survey period from 7 March to 4 April 2024.
• Survey conducted by a named professional contractor (EGS Survey Pty Ltd) using a specified vessel (RV Bold Explorer).
• Dataset is part of a major national infrastructure project (SUBCO Subsea Cable Network).

Limitations

• Key metadata such as column names, row count, file size, and license are listed as unknown or None across all sources.
• Platform update timestamps conflict, with one showing 2026-05-05 and another 2026-04-16.
• The dataset carries a specific restriction: 'Not to be used for navigational purposes'.

Provenance

Source

EGS Survey Pty Ltd, contracted by OMS.

Collection Method

Hydrographic, geophysical, and geotechnical survey from the RV Bold Explorer, likely using multi-beam echosounders.

Time Range

7 March 2024 to 4 April 2024

Freshness

Metadata was last updated on 2026-05-05 according to the most recent platform entry.

Geography

Beagle Marine Park, along the planned route for the SSCN Segment 2-E between Perth and Sydney.