The Solkan Bridge (Slovene: Solkanski most, Italian: Ponte di Salcano) is a 219.7-metre (721 ft) arch bridge over the Soča River near Nova Gorica in western Slovenia (by railway terminology it is a viaduct). With an arch span of 85 metres (279 ft), it is the longest bridge in the world and the longest stone bridge among train bridges built of stone blocks. It holds the record as later construction technology used reinforced concrete to build bridges.