La Réunion – Remedial Works for Defects on the NRL Breakwaters (CLAS for EGIS)

The Engineer in charge of design, construction supervision and works acceptance, EGIS, entrusted CLAS with expert diver monitoring of the works to remedy the non-conformities on the NRL breakwaters.

Several thousand ACCROPODE™ II units had to be dismantled in order to correct the numerous non-conpliances on the four NRL breakwaters on the island of La Réunion. The Engineer in charge of design, construction supervision and works acceptance, EGIS, entrusted CLAS with the monitoring of these works.

ACCROPODE™ II is a registered trademark owned by the ARTELIA Group, which is in no way affiliated with CLAS.

The independence of CLAS from the license vendors was the determining factor in the choice of CLAS for this mission.

Reprise et démontage de blocs sur la digue de la NRL
Diver performing underwater inspection of interlocking concrete armor units on a breakwater

The mission entrusted to CLAS

Aerial and underwater inspections of breakwaters D1, D2, D3, D4 and D5;

  • Risk analysis related to non-conpliances;

  • Recommendations for remedial actions to be carried out on the non-compliances;

  • Monitoring reports on the repairs at the end of each mission.

EGIS testimonial

CONTRACT: Nouvelle Route du Littoral

SUBJECT: STATEMENT OF SERVICES RENDERED

I, the undersigned Solenne LESOURD, Project Director for the Engineer in charge of design, construction supervision and works acceptance of the Nouvelle Route du Littoral of La Réunion (NRL), for which EGIS VILLE ET TRANSPORTS acts as Engineer in charge of design, construction supervision and works acceptance, hereby certify that the company CLAS SLU carried out the missions entrusted to it while meeting the required deadlines, thanks to its high level of technical expertise and great professional rigor.

These services essentially concerned technical assistance to the EGIS Engineer in charge of design, construction supervision and works acceptance for the inspection of armor layers made of artificial ACCROPODE™ II and X-bloc® concrete units on breakwaters D1 to D5 of the NRL, as part of the monitoring of remedial works following damage observations carried out from 2018 to 2022.

The mission entrusted to CLAS included in particular the following items:

  • Aerial and underwater inspections of breakwaters D1, D2, D3, D4 and D5;

  • Risk analysis related to non-compliances;

  • Recommendations for remedial actions to be carried out on the non-compliances;

  • Monitoring reports on the repairs at the end of each mission.

CLAS interventions under this mission took place from 2021 to 2023.

This mission followed a previous mission entrusted by EGIS to CLAS from 2018 to 2020, for which a specific statement was issued.

EGIS recommends CLAS for missions of this type on breakwaters implementing artificial concrete armor units.

ACCROPODE™ is a registered trademark owned by the ARTELIA Group, and X-bloc® is a registered trademark owned by Delta Marine Consultants (DMC). These companies are in no way affiliated with CLAS, which intervened in a totally independent manner from the license vendors.

Vue drone des travaux de réparation sur les digues de la NRL