(Φαίαξ), a celebrated architect of Agrigentum, who flourished about Ol. 75, B. C. 480, and executed several important public works for his native city. Among the most remarkable of these works were the sewers (ὑπόνομοι), which were named, after the architect, (Φαίακες. (Diod. 11.25.)
[P.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890