Hydrographic Survey Malaysia

About Hydrographic Survey

Hydrographic Surveys is utilized for the purpose of determining the topography of seabed, river beds, lakes or any other waterbodies in relation to the foreshore, pier, jetty, or shorelines. Hydrographic Surveying is a survey methodology that is concerned with the detailed 3D underwater (ponds, rivers, lakes and oceans) bed models derived from bathymetric surveys using GNSS controlled hydrographic survey equipment. This survey method provides detailed information on water depth soundings, shorelines, tides, currents, sea floor and submerged obstructions. This survey method is also used to produce a seabed profile for further long-term planning. Setia Geosolutions implement large scale and small scale hydrographic survey projects for governmental and private sector clients

Related Industries

Hydrographic survey plans are drawn to suitable scales and is utilized by engineers to prepare engineering designs for submission to the relevant authorities for approval. The high resolution
hydrographic information in the form of seabed imagery provides a basis for oil and gas or utility industries to make decisions on matters such as where to locate subsea installations such as pipelines or communications cables.

Hydrographic information is highly useful for resource development, marine construction, transportation planning, as well as Oil and Gas exploration. This survey method also provides coastal mapping for projects involving coastal and waterfront developments.

List of Experience :

Hydrography Survey Works On Construction of New Jetty for Marine Park Center Project at Pulau Tinggi, Mersing, Johor.
Hydrographic Survey Works For Proposed Bridge Crossing Sg. Pulai And Link Road From Pelabuhan Tanjung Pelepas To Tg. Bin, Mukim Air Masin And Sg. Karang, Daerah Pontian And Mukim Pulai, Daerah Johor Bahru, Johor Darul Takzim.
Hydrography Survey At Mukim Batang Berjuntai, Mukim Pasangan, Mukim Tanjung Karang And Mukim Ulu Tinggi, Daerah Kuala Selangor, Selangor Darul Ehsan.
Seabed Profile And Hydrology Study And Ground Investigation For Proposed Submarine Cable Route From Kapar Power Station To Pulau Ketam, Selangor.
Proposed Development Of The Ledang District New Administrative Centre Mukim Tangkak, Muar, Johor Darul Takzim (LDNAC).
In-Situ Measurement of Warm Water Re-circulation at Tuanku Jaafar Power Station, Port Dickson, Negeri Sembilan.
Kerteh Port Marine Facilities Expansion Works, Kerteh, Terengganu-Water Sampling Monitoring & Beach Profiling.
Feasibility Study for the Proposed Ethylene/Polythylene Project, Kerteh, Terengganu.
Proposed Hydrography Survey Works for Sg Golok Flood Mitigation Project (KESBAN).
Proposed Construction of Wharf/Quary for Oilab Fabrication Yard Fronting at Pulau Indah.

Frequently Asked Questions (FAQ) About Hydrographic Survey

1. What industries require hydrographic survey services?

Hydrographic surveys are essential for offshore oil and gas, renewable energy (wind farms), port authorities, dredging contractors, coastal infrastructure developers, subsea cable installations, and marine construction projects. Accurate seabed data supports safe engineering design and regulatory approval.

2. What equipment is used in a hydrographic survey?

Professional hydrographic surveys typically utilise:

Multibeam echo sounders (MBES)
Single beam echo sounders
Side scan sonar
Differential GPS (DGPS)
Motion reference units (MRU)
Sound velocity profilers (SVP)

The choice of equipment depends on required accuracy, water depth and project scope.

3. How accurate is a hydrographic survey?

Accuracy depends on survey methodology and equipment calibration. High-resolution multibeam systems can achieve centimetre-level vertical accuracy when properly calibrated and conducted under controlled conditions. Compliance with IHO (International Hydrographic Organization) standards further ensures reliability.

4. When is a hydrographic survey required for a project?

Hydrographic surveys are typically required:

Before offshore construction or piling
Prior to dredging operations
For port expansion projects
During subsea pipeline or cable installation
For environmental and coastal monitoring
To support regulatory submissions

Early surveying reduces engineering risks and prevents costly redesigns.

5. What deliverables are provided after a hydrographic survey?

Clients typically receive:

Bathymetric charts
Digital terrain models (DTM)
3D seabed visualisations
Contour maps
Cross-sections
Raw and processed survey data
Technical survey report

Deliverables are usually provided in CAD, GIS or compatible engineering formats.

6. How long does a hydrographic survey take?

Project duration depends on:

Survey area size
Water depth
Weather conditions
Data density requirements
Regulatory specifications

Small coastal surveys may take a few days, while offshore energy projects can require several weeks including processing and reporting.

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