Lille urban heat network extension

It is expected for approximately 576 ML of firm slice and 1852 ML of optional slice. Trench width from 0.73 m to 1.60 m excluding armor and depth 1.20 m to 2.00 m.

- Site preparation and marking of existing networks

- Complementary surveys for the identification of existing networks

- The constraints of complex traffic lanes and riverside information

- The realization of the trenches according to the requirements of the tube supplier

- The backfill complies with the various requirements

- The refurbishment of deposited works

- The implementation of materials for the laying of pipes

- Realization of surveys and CAD/CAD plans of heat networks

- Roadway repairs according to the different requirements of public services