Southern Arc of Sofia Ring Road

Contracting Authority
Road Infrastructure Agency

Sofia Ring Road

Glavbolgarstroy’s role in the project
Prime contractor
Nature of works
  • Area clearance
  • Mass and specialized earthworks
  • Engineering systems and structures
  • Reinforcement and retaining walls
  • Bridges and trestles
  • Construction of culverts
  • Pilot and flat foundation
  • Reinforcing embankment walls
  • Strengthening of main pipelines
  • Relocation of electricity networks and facilities
  • Correction of riverbeds
Period of implementation

Stage 1: Reconstruction and extension of Sofia Ring Road from Boyana to Simeonovsko Shosse – completed in June 2010
Stage 2: Lot 31 “Rehabilitation and reconstruction of Sofia Ring Road in the section from km 41+100 to km 44+720” is implemented under OP “Regional Development”. The project covers an area of 3583 meters in length, including 1443 meters of rehabilitation and 2140 meters of reconstruction. The project is to be completed in June 2012