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BREGANA – ZAGREB – DUBROVNIK MOTORWAY

CLIENT / CONSULTANT

Hrvastske Autoceste (Croatian Motorways) / Croatian Civil Engineering Institute

CONTRACTOR

BECHTEL & ENKA Joint Venture (each 50 % share)

SECTOR

Infrastructure

LOCATION

Bregana- Zagreb-Dubrovnik, Croatia

SCOPE OF WORK

Procurement, Construction

PROJECT DURATION

July 1998 – July 2004

Project Description

This important motorway project’s total length amounts to 156 km and consists of two separate sections. Section 1, the 13 km Bregana-Jankomir motorway, is a four-lane link from the capital city Zagreb to the border of Croatia and Slovenia, and was opened to circulation in December 2000. The other section, the 143 km Bosiljevo-Sveti Rok motorway, linking central Croatia to the Dalmatian Coast, opened in July 2004.

The motorway is considered vitally important as it provides the principal link between the Zagreb region in central Croatia and the Dalmatian coast. With this motorway, Croatia’s Dalmatian coast is now integrated with Europe’s central and western highway network.

The project was an enormous success. ENKA and Bechtel, who had undertaken the turnkey construction of the motorway in April 1998, completed the project 14 months ahead of schedule, with 4,000 workers employed at the peak of the construction. The project is further distinguished for winning the 2004 Croatian Contractor Safety Award, as it was successfully realized without any compromise in quality or safety.

ENKA assisted client to facilitate US EXIM Bank and OPIC financing for the project.

Unique Challenges

  • Habitat fragmentation occurs when human-made barriers such as roads, railroads, canals, electric power lines, and pipelines penetrate and divide wildlife habitat. Of these, roads have the most widespread and detrimental impacts. To decrease this impact, in Bregana-Zagreb-Dubrovnik Motorway, 6 wildlife crossings were constructed
  • ENKA also determined 70 places of sinkholes on the alignment and adopted its construction methodology to cross over them considering all environmental aspects. The project was completed in 14 months ahead of schedule, with 4,000 workers employed at the peak of the construction. The project is further distinguished for winning the 2004 Croatian Contractor Safety Award, as it was successfully realized without any compromise in quality or safety.

ENKA Scope of Services

Over the construction, 21 million m3 of earthwork were excavated, 0.65 million m3 of concrete were poured, 19 million m3 of fill material were used and 4.6 million tons of subbase and cement treated base, as well as 1.18 million tons of asphalt, were laid. The works also included the construction of bridges and viaducts reaching a length of 8 kilometres.

Significant Features and Accomplishments

  • Honored with the 2004 Croatian Contractor Safety Award.

Key Quantities

Total Km 156 km
Total Interchange 6 ea
Total Underpass 38 ea
Total Overpass 20 ea
Total Bridge Length 7,973 m
Total Haul Road 234 km
Total Excavation 21 Million m³
Total Fill 19 Million m³
Total Concrete 650,000 m³
Total Pile 3,835 m
Total Drainage Pipe 388,000 m
Total Subbase&CTB 4.6 million tons
Total Asphalt 1.18 million

Gallery

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