The water supply was fully restored by Constantine V (r. 718-775), who commissioned a certain Patrikios to be in charge of the large workforce of 5,000 craftsmen to complete the restoration.
Prior to the restauration, Constantine had repopulated Constantinople by moving families from Greece to the capital after a plague outbreak in 747. A drought encouraged the emperor to ‘restore Valentinian’s (=Valens) aqueduct’. According to Crow, this entailed the entire Thrace system (Valens Waterway) which included the aqueduct bridge.