| Project | Viaduct Črni Kal, Slovenia |
| Location | Highway A10 Koper – Lendava, Slovenia |
| Investor | DARS d.d., Celje Motorway Company in the Republic of Slovenia |
| Client | JV ČRNI KAL (SCT d.d., PRIMORJE d.d.) |
| Expert | PIPENBAHER CONSULTING ENGINEERS |
| Special Services | Computational fluid dynamics (CFD) analysis |
| Bridge Dynamic Wind Analysis | |
| Coordination of wind-tunnel tests | |
| Wind protection design | |
| Length | 1065.0 m |
| Span arrangement | 80.0 + 120.0 + 3 x 140.0 + 120.0 + 75.0 + 60.0 + 3 x 50.0 + 40.0 = 1065.0 m |
| Total width | 2 x 13.3 m |
| Pier height | Up to 95.0 m |
| Type of foundations | Deep on up to 18 m deep wells and piles, diameter 1.20 m |
| Superstructure | Prestressed concrete box girder |
| Construction technology | Balanced cantilever method |
| Competition | 1.st Prize |
| Authors | Marjan PIPENBAHER, M. Civil Eng. |
| Janez KOŽELJ, M. Arch. |
