<p>Discharge point of a drain partially preserved in the 19th-c. Tiber embankments (*Tiberis: Grand Embankment) between those of the *Cloaca Maxima and the *“Cloaca Circi Maximi” (Cressedi 262-65, figs. 6-8), hence the modern name “Cloaca Mediana” (Middle Drain). This drain probably served to collect rainwater from the open space of the *Forum Bovarium (Cressedi 265). Late 19th-c. investigations found the drain obstructed just within its mouth, and today only the upper portion of the opening survives, so its full extent and course are unknown (no remains have been unearthed within the *Forum Bovarium). The preserved portions are of Grotta Oscura tufa (Cressedi 265), so the <i>cloaca</i> appears to be of Republican date.</p>