The Hemus motorway (, ) or Haemus motorway, designated A2, is a partially built motorway in Bulgaria, under construction since 1974. Its planned length is 418 km, of which 206 km are in operation . The motorway in operation is divided into two sections â the first one links the capital Sofia with the town of Ugarchin near Dermantsi, crossing Stara planina (Balkan Mountains), and the second segment connects Varna and Buhovtsi near Targovishte. According to the plans, Hemus motorway would connect Sofia with the third-largest city of Varna, at the Black Sea coast, duplicating European route E70 (VarnaâÂÂShumen), European route E772 (ShumenâÂÂYablanitsa) and European route E83 (YablanitsaâÂÂSofia).
The construction of the motorway officially began. The groundbreaking ceremony was attended by the First Secretary of the Bulgarian Communist Party (BCP), Todor Zhivkov.
The PravetsâÂÂYablanitsa section of the Hemus motorway was officially opened on 5 December 1999. Due to the mountainous terrain through the Balkans, the 5.47 km section together with another 16 km reconstructed, features two viaducts and one tunnel (Praveshki hanove), while the whole SofiaâÂÂYablanitsa section has three more tunnels. The construction of the PravetsâÂÂYablanitsa section began in 1984 but ceased in the late 1980s due to lack of funds to eventually be finished in 1998âÂÂ1999.
The 12.8 km section connecting Shumen with Kaspichan to the east was opened on 30 December 2005 and cost 77.6 million leva.
In August 2015, a 4.9 km segment, including the Belokopitovo interchange (with I-2 road), was inaugurated.
In October 2019, ð 9.3 km segment (lot 0), connecting Yablanitsa with the I-4 road near the Boaza ravine of Vit, was inaugurated.
In October 2022, ð 16.3 km segment (lot 10), connecting Belokopitovo with the village of Buhovtsi near Targovishte, was inaugurated.
In October 2025, ð 10 km segment of lot 1, connecting Boaza with the village of Dermantsi near Lukovit, was inaugurated. Two months later, on December 13th, the remaining 5 kilometers of lot 1, stretching from Dermantsi to a temporary exit on the III-307 road near Ugarchin, were opened.
In January 2013 National Company "Strategic Infrastructure Projects" (NCSIP), a state-run company, tendered feasibility study for the remaining sections of Hemus motorway (Yablanitsa-Panayot Volovo). In 2014 NCSIP signed contracts for drawing conceptual designs for all 8 lots of the motorway. In January 2015, a tender for design and build of 2 lots, between Yablanitsa and the Pleven/Lovech road, has been announced by NCSIP. In 2016 NCSIP was closed, with all activities being transferred to the Roads Agency. The tender for construction of the Yablanitsa - Pleven/Lovech road was cancelled due to lack of secured financing and later in 2016 a new tender for a shorter 9 km stretch between Yablanitsa and Boaza has been announced.