Transport infrastructure / roads


Environmental and Social Impact Assessment Study for the Motorway A4 Skopje – Blace, Section: Interchange Stenkovec – Blace Border Crossing Point (12.5 km); Detailed Design for 3.0 km of this section, North Macedonia


Location: North Macedonia
Client: Ministry of Infrastructure, Transport & Networks (Greece)
Date: 2019 – 2020
Construction costs:
Technical Details

The project involves the construction of the southern part of Motorway A4, which connects the cities of Skopje and Blace in North Macedonia, and its structures. The Republic of North Macedonia secured funding from WBIF, CEB, EBRD and EIB to revise the designs to meet the current requirements and to complete the construction.

OBERMEYER’s assignment embraces the provision of engineering services for the detailed design of several structures.


Services Provided

The scope of services includes the execution of the Detailed Design for 1 pile-wall, 1 underpass and 13 culverts.


  • Geodetic (topographical) surveys
  • Geotechnical Surveys


– Preliminary design for all Civil Works:

  • alignment
  • bridges
  • tunnels
  • overpasses/underpasses
  • formation setting

– Hydraulic preliminary design

– Environmental design

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