D-010, aka Black Sea Coastal Road, is a major west-east state road in northern Turkey that serves the Black Sea coast. The 1,427 km (887 mi) route starts in the west at the intersection D.014, 5 km (3.1 mi) southeast of Karasu, Sakarya Province, and terminates at the intersection D.060, 25 km (16 mi) northeast of Kars in eastern Anatolia. However, it is discontinued between Zonguldak and 10 km (6.2 mi) southwest of Çaycuma.