The Suplacu de Barcău Viaduct (Hungarian: Berettyószéplaki völgyhíd) is a future viaduct between Suplacu de Barcău and Borș, Romania.

The remaining part was abandoned by the American company Bechtel, on the route of the future A3 Transylvania Motorway.

The viaduct will be a traditional piled structure with a length of 1.8 km (1.1 mi) and 45 spans of 40 m (130 ft).

Construction work at the viaduct is underway and includes foundation activities, piling installation, reinforcement of concrete pile caps, pier elevations and pier heads.

Finally, when the deck is completed, the paving activities will be ready to start.