International expansion

International expansion

OPTIMUM continues to expand its international reach with new projects in Asia, Africa and South America. Following on from the conception of 2 outfall projects off the coast of Sri Lanka, engineers recently completed the geotechnical analysis and modelling for a...
Ovale & Sens win French championships

Ovale & Sens win French championships

Big congratulations to Ovale & Sens who won the French adapted rugby championship this weekend in Grenoble, with a hard fought 10 – 9 win in Sunday’s final. This latest victory comes after the club was crowned Ile-de-France champions in March. OPTIMUM is proud to...
The importance of fluid confinement pressures

The importance of fluid confinement pressures

Urban microtunnel projects must ensure that works have minimal impact on both the environment and nearby infrastructure. The importance of determining the fluid injection pressures the ground can withstand is increasingly being recognised by both project owners and...
Pre-tender site visits : the G2 DCE mission

Pre-tender site visits : the G2 DCE mission

Great to have accompanied RTE recently on pre-tender site visits in Le Coudray and Romainville. Indeed, visiting a site with the project owner and potential drilling / tunnelling contractors often significantly increases the quality of submissions. OPTIMUM’s...
Happy anniversary !

Happy anniversary !

Just days after its 4-year anniversary, OPTIMUM celebrates the completion of its 500th trenchless project this week, having designed and supervised over 75 000 linear metres of drilling/tunnelling, including 10 km of microtunnel, 20 km of landfalls and 50 crossings...