Negotiated invitation to tender, deadline 06/08/2020, 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. Contract duration 24 months. Further information please visit here where offers must be sent and full TED information can be found here and here. Contact Societe du Grand Paris, La Plaine-Saint-Denis, tel +33 182462000, fax +33 182462031, email Marches-sgp@societedugrandparis.fr. Ref. n. 2019PN063. 30/20.