Negotiated invitation to tender, deadline 24/02/2021, for the checking of foundations of the buildings and infrastructures (avenues, viaducts, tunnels etc), along the alignment of the future Line 15 West and 15 East of the Grand Paris Express. Further information please visit here where offers must be sent. The contract is composed by 2 lots. Contract duration 24 months. Contact Societe du Grand Paris, La Plaine-Saint-Denis, tel +33 182462000, fax +33 182462031, email Marches-sgp@societedugrandparis.fr. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=065199-2021. Ref. n. 2020PN072_Candidature. 06/21.