by admin-optimum-549 | Jun 1, 2023 | Oil & Gas
Proud to accompany GRTgaz yesterday for the arrival onsite of microtunnel “Léa”, ready to start the first of two tunnels under the River Durance in southern France. Crossing a combined 1300 m under not only the river, but also a motorway ramp, protected woodland, a...
by admin-optimum-549 | May 11, 2023 | Water
An important step on Tuesday alongside SADE, RAZEL-BEC and BESSAC for the latest in a series of initiatives in the Paris area, contributing towards making the River Seine swimmable again. Lifting out the cutting wheel marked the completion of the first phase of...
by admin-optimum-549 | Mar 23, 2023 | Water
Great to have supported SADE and SCAM TP during works at Montpellier university hospital recently for both a 174m long AVN 2000 microtunnel, as well as 5 open trench sections ranging from 35m to 135m in length. OPTIMUM accompanied the engineering teams for all the...
by admin-optimum-549 | Dec 8, 2022 | Water
Great to have accompanied SUBTERRA during the successful completion of a complex double DN1400 microtunnel in Portet-sur-Garonne, southwestern France, linking local water treatment facilities. Site conditions, in a dense urban environment, required both tunnels to...
by admin-optimum-549 | Nov 17, 2022 | Water
Immensely proud to have accompanied BESSAC and SADE during the now completed 610-metre-long, up to 30-metre-deep, AVN2500 microtunnel crossing under the River Seine in the centre of Paris. In a complex geological environment, the gravity-flow tunnel had to cross not...
