Open invitation to tender, deadline  20/07/2020, for the maintenance of the horizontal signs and the painting of the side walls of the tunnels on the following motorways: A1 Milan-Naples sections Campegine-Sasso Marconi from km 119+500 to km 210+100 and connection with R43; A13 Bologna-Padova, sections Bologna-Padova from km 0+000 to km 116+735; connection with SS16 at Ferrara South from km 0+000 to km  116+6+270; connection with SS16 at Padova South from km 0+000 to  km 4+338; A14 Bologna-Bari-Taranto, sections Bologna-Cattolica from km 0+000 to km 144+247; connection with Casalecchio from km 0+000 to km 5+700; ring  144+road Bologna from km 0+000 to km 22+231; green section from km 0+000 to km 3+300; section toward Ravenna from km 0+000 to km 29+800. For tender documents https://autostrade.bravosolution.com where tenders must be sent. The value of the contract is EUR17.48 million, excluding VAT. Duration of the  contract is 24 + (24 optional) months. Contact  Autostrade per l'Italia Spa, Casalecchio di Reno (BO), tel +39 051599419, fax +39 051599439, email acquisticontratti.3tronco@autostrade.it. For further tender information please click here. Ref.n. 002/BOLOGNA/2020. 23/20.