A11 road (England)

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The A11 is a major road in England that runs from central London to Norwich in Norfolk, covering about 112 miles (181 km). Over the years, much of the old route was renumbered or turned into bypasses, especially after the M11 opened in the 1970s and the A12 was extended in 1999. Today, only a short London stretch remains as the A11; the rest is either a different road or a dual carriageway bypass of towns along the way.

The modern A11 begins at Aldgate in the City of London, travels through Whitechapel, Mile End and Bow, and then the A11 number disappears near Bow Interchange as the road becomes the A118. The A11 number then reappears near the Essex–Cambridgeshire border and heads northeast, following a route close to a Roman road toward Norwich. It bypasses Thetford and Barton Mills, then passes Thetford Forest, Attleborough and Wymondham before reaching Norwich. In Norwich it becomes Newmarket Road and ends at the St Stephens Street roundabout near the city centre. Major upgrades over the decades include the Newmarket bypass (opened in 1975) and more recent dual carriageway improvements from Barton Mills to Norwich completed in 2014, with other bypasses completed earlier (Roudham Heath to Attleborough in 2003 and Attleborough in 2007). The A11 also shares long sections with the A14 near Newmarket. Cycle routes run alongside parts of the A11, such as Cycleway 2 from Aldgate to the A12 and the Wymondham–Sprowston Pedalway along Newmarket Road.