Construction of “Mahovljani” viaduct was the part of the project “9. January” motorway connecting Banja Luka and Doboj (R. Srpska, BiH). It was the part of the scope of DINARIK doo company, the subcontractor for the construction of multiple bridges, viaducts, overpasses, and retaining structures on this project. It crosses regional road M16 and connects “9. January” motorway to previously built Banja Luka – Gradiška (E661) motorway, at the location of the “Mahovljani” motorway junction.
The viaduct is comprised of two individual structures (one per direction), each having two traffic lanes and shoulder road, each structure being subdivided into two expansion segments. Total length of viaduct is 500m (25+3×50+25+25+3×50+25). The superstructure of the viaduct is designed as a post-tensioned continuous ribbed slab (Homberg section), reinforced with transverse beams at the locations of the piers. Piers are formed out of two round columns, 120cm in diameter, and spaced at 6m. Foundations are designed as pile foundations (R=150cm, L=15-24m), with group of three piles at each pier location.

OUR ROLE IN THE PROJECT:
* CONSTRUCTION MANAGEMENT
* DESIGN OF SHORING AND FORMWORK
* RC DETAILING (PARTIALLY)
* 3D MODEL WITH EXACT COORDINATES FOR SURVEYING STAKING OUT