A residential and light industrial town situated by the banks of the river Seine, some 13 miles (21 km) south of Rouen, at the junction of the D919 and the D921 roads.
It used to be the site of the Caudebec bore, or tidal wave, which several times a year rushed up the river from the sea. However the tidal estuary was changed to improve shipping access and the bore ceased to function.
The arms of Caudebec-lès-Elbeuf are blazoned : Gules, a sickle reversed and sprig of mistletoe in saltire between (a lance inverted and a throwing axe [francisca] in saltire surmounting a gaulish shield bendwise topped with a winged gaulish helmet contourny) and a dolmen Or charged with the letters ESUS sable impaled with Azure, a she-wolf nursing Romulus and Remus, standing on a pedestal Or charged with the inscription ROMA sable, and in chief a round shield surmounted by (i.e. overall over the shield), a sword palewise, a fasces bendwise, a Aquila bendwise sinister and a trumpet fesswise Or. (An Aquila is a Roman legion's eagle standard; the trumpet is a Roman trumpet 'tuba').