France – Geotechnical engineering services – Reconnaissances géotechniques sur le réseau routier national en région Hauts-de-France.

Geotechnical surveys on the national road network in the Hauts-de-France region. The services, which are the subject of the present contract, concern the national road network in the territory of the Hauts-de-France region:

- the execution of geological, geotechnical and hydrogeological investigations,

- the completion of geotechnical engineering studies (four types of missions are targeted here in accordance with the November 2013 NF P 94-500 standard):

- Preliminary geotechnical study G1 (phases ES and PGC)

- Geotechnical design study G2 (phases AVP, PRO and DCE/ACT)

- Geotechnical supervision of execution G4 (phases EXE/VISA and DET/AOR)

- Geotechnical diagnostic G5