News and press

Condamine Harbour

From 2007 to 2012, HYDROKARST is making a yaerly inspection of the Condamine harbour in Monaco. Works are done every year during 1 month and with a te...

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Underwater works at Yvoire

We have been working for 3 weeks for a cleint named "Syndicat Intercommunal des Moises" in the city of Yvoire (74). We were asked to make a visual ins...

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Underwater works at Durance

We have been working, during more than 3 months, on a pipeline situated into a galery under the Durance river (Avignon). Works were done for the clien...

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Spectacular rope access works on Rocamadour site

Twelve Hydrokarst rope access technicians have taken possession of Rocamadour's cliffs for the last 6 weeks. Their objective is to secure the site, le...

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Rion-Antrion Gate

Each year we work on the maintenance and the inspection of the Rion-Antrion gate, a link between the Peloponnese and Greece, in the city of Patras. Du...

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TANGER MED Port complex

Since 2003, we are taking part into the construction of the TANGER MED Port complex. Nature of works: Construction of quays Laying of prefabricated el...

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Condamine Harbour

From 2007 to 2012, HYDROKARST is making a yaerly inspection of the Condamine harbour in Monaco.
Works are done every year during 1 month and with a team of 5 divers, and consist in an inspection of the flotting quay and jetting 280b.

Divers have to make an inspection of the voile béton, the under face of the quay la sous face de la digue, mooring systems...les apparaux de mouillages... and to make a final report to the client, Travaux Publics de Monaco.

Underwater works at Yvoire

We have been working for 3 weeks for a cleint named "Syndicat Intercommunal des Moises" in the city of Yvoire (74).

We were asked to make a visual inspection and a rehabilitation of a drinking water pipe, diameter 500, 13 meters depth and 6° water.
Works were done according to the followings steps:
- geotechnical sounding
- piles driving (diameter 244 mm)
- cutting of the existing pipe
- replacement of the dammaged part
- installation of a cathodic protection system

Read the article (French) : PDF
Please note that the Pdf and the pictures have been collected from the Dauphiné Libéré - April 2010.

Read the article (French) : PDF
Please note that the Pdf and the pictures have been collected from the n°429 of Chantiers de France April 2010.

Underwater works at Durance

We have been working, during more than 3 months, on a pipeline situated into a galery under the Durance river (Avignon).
Works were done for the client named "Société du Pipeline Sud Européen" according to the following steps:
- pipeline inspection (2,5m diameter, 800m length)
- pumping in order to reduce the water level from 27m to 11m
- withdrawal of dammaged clamping systems
- installation of metallic elements for pipeline ballasting
- assistant for the ballasting operation

Works were done with umbilical (maximum length 400m ) and using speleo technics, with 0,50m of visibility and a 12°water.Access were only possible via 2 concrete wells of 6m diameter at both ends of the pipe.

Spectacular rope access works on Rocamadour site

Twelve Hydrokarst rope access technicians have taken possession of Rocamadour's cliffs for the last 6 weeks.

375 tons of rocks will be scaled by hand. The technicians' aim is to make a clean work with as little damage as possible on that listed site that is visited by tens of thousands of tourists every year.

Rion-Antrion Gate

Each year we work on the maintenance and the inspection of the Rion-Antrion gate, a link between the Peloponnese and Greece, in the city of Patras.
Due to the size of the element, the number of overhanging elements and the often bad weather conditions, the intervention of 3 to 6 climbing technicians is necessary during a few months.

TANGER MED Port complex

Since 2003, we are taking part into the construction of the TANGER MED Port complex.
Nature of works:
Construction of quays
Laying of prefabricated elements
Cutting
Welding
Grading
Maximum workforce during the works: 5 teams of 4 workers
Hydrokarst construction superintendants: Benoit RIGOLE and Fabrice MORFIN