The Tirzah Reservoir is used to collect the floodwater of Wadi al-Far'a before it flows into the Jordan River.

Josephus names a place of crossing near the confluence of the watercourse Naḥal Yabok with the Jordan River, not far from Wadi al-Far'a, known in classical antiquity as Coreae (Greek: Κορέας), and where is now the "Old Roman Bridge" (Arabic: Mukatta' Damieh), which once marked, in Josephus' words, "the first entrance into Judea when one passes over the midland countries.

"[3][4][5] The site is listed in the 6th century Madaba map, and whose location agrees with the modern identification of Tell el-Mazar.

[7]The village of Wadi al-Far'a is close to a number of Heavy Neolithic archaeological sites of the Qaraoun culture.

[8][9] An archaeological mound situated near the village of Wadi al-Far'a, Tell el-Far'ah (North), has been identified as the location of biblical Tirzah.