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motorway section
Gradiska - Banja Luka
lot 3 from km 30+000 to km 36+736



Contract for construction
of new motorway section Gradiska - Banja Luka (Bosnia-Erzegovina)


JP Autoputevi Republike Srpske
(National Authority for the motorway network in Rep. Srpska)


Mahovljani (Banja Luka, Bosnia-Erzegovina)


Works consist in executing a new motorway section with length of 6.7 km and 1.2 km of local roads on a path characterized by a diversified orography, which has consequently caused considerable handling of material.
The road levee has been executed through ''lime stabilization'' technique of the excavated argillaceous ground, for a total volume of around 600,000.00 cu. m., by using of pulvimixer cutters, lime’s spreaders machines and
rubber/iron rollers with compaction mesurement devices.
Along the path of the new highway, have been executed 2 river bridges, 3 overpasses with precast beams, 3 casted underpasses. It has also been necessary to proceed with hydraulic adjustment of territory involved, realizing new hydraulic canals and land reclamation and redevelopment, barriers have been laid against noise in length of 330 m and
have been installed numerous SOS systems.
In order to protect this highway, 2 supporting walls have been realized (average height 5 m and length 230 m 110 m) at the trenches, slopes have been laid, then coated with shotcrete, and all water inflows have been canalized through drainage systems.