Additional information for the negotiated invitation to tender, deadline 23/02/2021, for phase 2.2 of safety works in the 1.5 km-long twin tube Grand Mare tunnel on the RN28. For tender documents please click here, where tenders must be sent. Duration of the contract is 24 months. Contact DIR Nord-Ouest, Rouen, tel +33 276000466, fax +33 276000495, email Pegoa.Spt.Dir-No@developpement-durable.gouv.fr. Ref.n. PEGOA-2020-012. 03/21.
