Complex sentence: The Suplacu de Barcǎu Viaduct is a future viaduct between Suplacu de Barcău and Borş 90% built, and then abandoned by the American company Bechtel, on the route of the future A3 Transylvania Motorway.
Split into simpler sentences: The Suplacu de Barcǎu Viaduct is a future viaduct between Suplacu de Barcău and Borş. The remaining part was abandoned by the American company Bechtel, on the route of the future A3 Transylvania Motorway.