Focus: Construction Inspection

Every month we will focus on a specific theme, featuring a selection of articles which have previously been published in Hydro International magazine. By including a mix of older and more recent articles, we will present a complete recap of the subject. Furthermore, we will be bringing you a bi-weekly round-up of ‘Focus Stories’ related to the theme through our newsletter (sign up here). The theme for July 2016 is:

Construction Inspection

Hydrography serves constructions in various ways: when preparing the construction, during the construction and later, for maintenance. Offshore renewable energy gives a new dimension to this professional focus, as the selection proves.

New York Harbour

New York Harbour

The greatest of the Coast Survey mid-nineteenth century harbour studies was that of New York Harbour. In 1855, the Commissioners on Harbor Encroachments of New York requested that...

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Are the Bridge Piers Safe?

Are the Bridge Piers Safe?

Bridges with bridgeheads and supports in water need regular inspection, especially the underwater parts, and even more so if they are exposed to current - as scour needs attention....

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Hydro Dam Inspection by ROVs

Hydro Dam Inspection by ROVs

The inspection and maintenance of vital resource facilities is an integral part of any regional health and stability management programme. Providing consistent quality output whils...

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Self-installing Wind Turbines

Self-installing Wind Turbines

The Dutch company SPT developed a new foundation concept for offshore wind turbines in order to reduce the costs and environmental impact: a Self Installing Wind Turbine. The conce...

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3D Precision Beyond the Horizon

3D Precision Beyond the Horizon

The Gemini Offshore Wind Farm in the North Sea is located 85km north of Groningen, The Netherlands. Van Oord, a leading Dredging and Marine Contractor, started the offshore constru...

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Hydroelectric Power Plant Inspections

Hydroelectric Power Plant Inspections

In Brazil there is a legal requirement to inspect all hydroelectric dams and power plants (HPP) every five to ten years, but the methods to be employed for such inspection are not...

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Marine Asset Integrity Mapping

Marine Asset Integrity Mapping

Advances in marine & terrestrial scanning survey techniques together with precise inertial navigation sensors, multi-sensor acquisition systems and cost-effective UAS photogram...

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Acoustically Aided INS and Lidar

Acoustically Aided INS and Lidar

Aerial mobile mapping using Lidar and GNSS-aided inertial navigation has revolutionised the efficiency of land and shallow-water bathymetric surveying. Now, fast ultra‑high resolut...

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Handling Sonar Data from AUV Operations

Handling Sonar Data from AUV Operations

During the past few years, autonomous underwater vehicles (AUVs) have established a greater presence in the hydrographic survey market and in the collection of oceanographic enviro...

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Subsea Cable Route Surveying

Subsea Cable Route Surveying

Almost all (99%) international data is transmitted by around 265 subsea cable systems connecting the world. The total length of subsea cables exceeds 1.6 million kilometres, and th...

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Raw Data as Information Source

Raw Data as Information Source

For hydro- and topographic surveying companies it is common to gather data in the field and process it into formats for presentation. Nowadays, technology  provides more and m...

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Portland Harbour

Portland Harbour

A progressive spirit was awakening in the United States in the mid-nineteenth century. This movement was notable for emphasis on education reform, prison reform, women’s suff...

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ASV Global C-Enduro

ASV Global C-Enduro

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