• Persan : Six 175m – 200m long HDD crossings under rivers and the A16 Paris – Calais motorway
• Noyales : Four 90m – 120m long HDD crossings under rivers and roads in arable / pasture land
• Romainville : Six 85m – 110m long HDD crossings in a heavily built-up urban environment
Even for relatively short trenchless crossings, support from specialist engineers is key. OPTIMUM has accompanied RTE in these three projects from A to Z ; initial feasibility studies, choice of drill path and project design, evaluation and selection of the drilling contractor, through to supervision of the drilling works.
OPTIMUM’s perfect understanding of the project history and geotechnical constraints allows for decisions to be taken quickly and for technical advice and monitoring to be more pertinent, minimizing risks and optimising operations.
