Open invitation to tender, deadline 04/01/2021, for the technical assistance to the works management during the reinforcement lining and equipment adaptation of the tunnel towards Pamplona of the twin-tube Belabieta tunnel (1.8 km) on the A-15 Motorway. Contract value EUR1.42 million, excluding VAT. Duration contract 13 months. Contact Diputacion Foral of Gipuzkoa, Departamento de Infraestructuras Viarias, Donostia-San Sebastian, tel +34 943112366, email bidekontratazioa@gipuzkoa.eus. For further on the tender, please click here. Ref.n. 1-IN-1/2019-S1-RP-DO. 50/20.