The line was opened in two periods: between 1911 and 1915 the Naro - Licata section was activated as a continuation of the Canicattì - Naro connection opened on 28/02/1911; in 1921 the connection between Margonia and Agrigento was made.
The line had 6 rack and pinion sections with a gradient of 75 ‰ for a total of 10.26 km: from km 3 + 300 to km 5 + 195; from km 11.307 to km 12.798; from km 14.374 to km 15.406; from km 16.568 to km 18.031; from km 38.608 to km 40.618; from km 40.938 to km 43.271 (progressive referring to the station of Agrigento Bassa).
Current state:
The railway site, no longer armed, can only be traced in parts as a dirt country road. Long stretches of former grounds have been incorporated into cultivated fields or transformed into ordinary roads. The works of art are generally still visible, although some are in poor condition. Most of the buildings of the former stations and the toll booths have been abandoned and dilapidated.
The Agrigento Centrale - Agrigento Bassa section was common to the Palermo - Agrigento Centrale ordinary gauge line and the Castelvetrano - Agrigento Centrale narrow gauge line. The trains coming from Licata could reach Agrigento Centrale thanks to a narrow gauge track placed between the ordinary gauge track.
The narrow gauge track between Agrigento Bassa and Agrigento Centrale remained in operation even after the closure of the line, used by the Castelvetrano - Agrigento Centrale railway.