Beside the construction of the bridge, access roads at both sides of the bridge required construction, including 2 tunnels on Pelješac (one 2,170 metres (7,120 ft) and the other 450 metres (1,480 ft) long), as well as two smaller bridges on Pelješac, (one 500 metres (1,600 ft) and another 50 metres (160 ft) long). The bridge cannot form part of the A1 motorway, currently connecting Zagreb and Ploče, because it is not planned to include the requisite number of lanes to support it. The road from Ploče through the bridge towards Ston and further south to Dubrovnik is planned to be a four-lane expressway.