structural:expansion, linguistic:paraphrasing
Jordan

Among the qanats built in the Roman Empire, the 94 km (58 mi) long Gadara Aqueduct in northern Jordan was possibly the longest continuous qanat ever built. Partly following the course of an older Hellenistic aqueduct, excavation work arguably started after a visit by emperor Hadrian in 129–130 CE. The Gadara Aqueduct was never totally finished and was put in service only in sections.