D.010, aka Black Sea Coastal Road, is a major west-east state road in northern Turkey that serves the Black Sea coast.

However, it is discontinued between Zonguldak and 10 km (6.2 mi) southwest of Çaycuma.

[1] Connecting most of the coastal towns and cities at middle and eastern Black Sea, the D.010 runs through Ereğli, Zonguldak, Bartın, Sinop, Samsun, Ordu, Giresun, Trabzon and Rize.

It leaves the coast at Hopa, Artvin Province and turns southeast.

[1] Between Samsun and Hopa, D.010 is a divided route named Black Sea Coastal Highway (Turkish: Karadeniz Sahil Yolu), and a 480 km (300 mi) section forms part of the European route E70.