The A333 is a road in Surrey

Surrey

Surrey is a county in the South East of England and is one of the Home Counties. The county borders Greater London, Kent, East Sussex, West Sussex, Hampshire and Berkshire. The historic county town is Guildford. Surrey County Council sits at Kingston upon Thames, although this has been part of...

, south-east England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. It runs between the Hazel Grove interchange (51.107°N 0.744°W) and the Hindhead

Hindhead

Hindhead is a village in Surrey, England, about 11 miles south-west of Guildford. Neighbouring settlements include Haslemere, Grayshott and Beacon Hill. Hindhead is the highest village in Surrey...

 crossroads (51.114°N 0.733°W). It was formerly a small section of the A3

A3 road

The A3, known as the Portsmouth Road for much of its length, is a dual carriageway, or expressway, which follows the historic route between London and Portsmouth passing close to Kingston upon Thames, Guildford, Haslemere and Petersfield. For much of its length, it is classified as a trunk road...

 and was re-numbered in 2011 as part of the Hindhead Tunnel

Hindhead Tunnel

The Hindhead Tunnel is a road tunnel that opened on 29 July 2011 as part of the new Hindhead bypass for the A3 road in Surrey. It forms part of the 4 mile dual-carriageway being built to replace the last remaining stretch of single-carriageway on the London to Portsmouth road...

 project.

This number was previously allocated to a route in Hampshire

Hampshire

Hampshire is a county on the southern coast of England in the United Kingdom. The county town of Hampshire is Winchester, a historic cathedral city that was once the capital of England. Hampshire is notable for housing the original birthplaces of the Royal Navy, British Army, and Royal Air Force...

, running from Winchester

Winchester

Winchester is a historic cathedral city and former capital city of England. It is the county town of Hampshire, in South East England. The city lies at the heart of the wider City of Winchester, a local government district, and is located at the western end of the South Downs, along the course of...

 to Cosham

Cosham

Cosham is a northern suburb of Portsmouth lying within the city boundary but off Portsea Island. It is mentioned in the Domesday Book of 1086 along with Drayton and Wymering and Bocheland , Frodington and Copenore on the island.The name is of Saxon origin and means "Cossa's homestead"...

 via Wickham

Wickham

Wickham, formerly spelled Wykeham, is a small historic village and civil parish in Hampshire, southern England, located about three miles north of Fareham. It is within the City of Winchester local government district, although it is considerably closer to Fareham than to Winchester...

, which was downgraded in 1994 and renamed B2177 and B3335 once the M3 and M27

M27 motorway

The M27 is a motorway in Hampshire, England. It is long and runs west-east from Cadnam to Portsmouth. It was opened in stages between 1975 and 1983. It is however unfinished as an extension to the east was planned...

motorways were finished.