Site Investigation Works for 'Long Island'

What’s Happening

Since August 2025, HDB has been conducting site investigation works in the waters off East Coast Park. The works are expected to be completed by April 2026. These initial studies will gather essential information, such as an understanding of the geological and seabed conditions, which will guide the project's detailed design and planning.

What to Expect

During this period, you may notice some marine barges stationed at various locations in the waters off East Coast Park, around 100m away from the shoreline, as well as survey boats moving across the waters. 

The barges will remain at each investigation site for one to three days, using onboard rigs to conduct borehole drilling, soil sampling and in-situ field tests. Survey boats will carry out side scan sonar, geographical and cable detection surveys. The works are not expected to result in pollution or environmental impact.

Example of a deployed marine barge

Advisory for Water Activities

For your safety, please:

• Maintain a distance of at least 100 metres (i.e. length of two Olympic-size swimming pools) from all work vessels. Sea space users are advised to check Port Marine Notices for updates.

• Follow any other on-site safety advisory at East Coast Park.

For enquiries about the works, please contact Ms Chester Lee from Ryobi Geotechnique International Pte. Ltd. at 8183 9601.

Note: This webpage will be updated regularly with the latest information on ‘Long Island’.