View of the Ponte Rotto, Rome

The Ponte Rotto — literally the "broken bridge" — was one of Rome's most evocative ruins: a single arch of the ancient Aemilian Bridge that had collapsed in a sixteenth-century flood and stood stranded in the middle of the Tiber, its isolation in the river making it one of the city's most recognisable landmarks. Van Wittel painted it in 1685, near the beginning of his Roman career, drawn by the combination of antiquarian interest and visual drama that the isolated arch provided. The ruined bridge carried layers of historical meaning for educated viewers — it had once carried the Via Aurelia across the Tiber and was associated with Rome's republican past — while for Van Wittel it represented the kind of precise topographic challenge he relished: a single complex form in moving water, requiring careful observation of how the arch's reflection broke and reformed in the current. The National Trust canvas is among his earliest treatments of this subject and shows his method of anchoring a composition around a single dominant element rather than building an extended panoramic view.

The isolated arch of the Ponte Rotto is placed off-centre, its reflection fragmenting in the Tiber's current below. Van Wittel renders the ancient travertine blocks in warm ochre, contrasting with the cooler blue-grey water. The broken edge of the arch — where the bridge terminates in mid-river — is handled with particular care, its rough masonry suggesting centuries of weathering.