"The Constantine's Bridge was a late antique bridge in Mysia, modern-day Turkey.The structure, built after 258 AD, crossed the river Rhyndacus (modern Ad\u0131rnas \u00C7ay\u0131) at Lopadium (modern Uluabat). It was crowned in Byzantine times by a chapel dedicated by Saint Helena to emperor Constantine I (r. 324\u2013337 AD)."@en . "Constantine's Bridge"@en . . . . . . . "After 258 AD" .