Geotechnical reconnaissance on the Hauts-de-France national roads. The services covered by this contract relate to the national road network in the Hauts-de-France region:

- carrying out geological, geotechnical and hydrogeological investigations,

- carrying out geotechnical engineering studies (4 types of missions are covered here within the meaning of standard NF P 94-500 of November 2013):

—— G1 preliminary geotechnical study (ES and PGC phases),

—— G2 design geotechnical study (AVP, PRO and DCE / ACT phases),

—— G4 geotechnical execution supervision (EXE / VISA and DET / AOR phases),

—— G5 geotechnical diagnosis.

Geotechnical reconnaissance on the Hauts-de-France national roads. The services covered by this contract relate to the national road network in the Hauts-de-France region:

- carrying out geological, geotechnical and hydrogeological investigations,

- carrying out geotechnical engineering studies (4 types of missions are covered here within the meaning of standard NF P 94-500 of November 2013):

—— G1 preliminary geotechnical study (ES and PGC phases),

—— G2 design geotechnical study (AVP, PRO and DCE / ACT phases),

—— G4 geotechnical execution supervision (EXE / VISA and DET / AOR phases),

—— G5 geotechnical diagnosis.