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A404 road

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Title: A404 road  
Author: World Heritage Encyclopedia
Language: English
Subject: B roads in Zone 4 of the Great Britain numbering scheme, Transport in Buckinghamshire, A412 road, A4010 road, A4130 road
Collection: Roads in Berkshire, Roads in London
Publisher: World Heritage Encyclopedia

A404 road

A404 road shield

A404 road
Major junctions
From: Westway, Marylebone, London
  A40 A40 road
A219 A219 road
A406 A406 road
A312 A312 road
A410 A410 road
A412 A412 road
A413 A413 road
A416 A416 road
A355 A355 road
A40 A40 road
A308 A308 road
A4 A4 road
[ M 25  ] M25 motorway
[ M 40  ] M40 motorway
[ M 4  ] M4 motorway
A404(M) motorway
To: Maidenhead
Wembley, Harrow, Northwood, Rickmansworth, Amersham, High Wycombe, Marlow
Road network

The A404 is a road in the United Kingdom that starts at Paddington in London and terminates near Maidenhead in Berkshire.

The road initially follows a course through north-west London via Harlesden, Wembley, Harrow, Northwood and Rickmansworth. The M25 Junction 18 is at Chorleywood. The A404 crosses into Buckinghamshire and continues towards Little Chalfont and Amersham.

Between Paddington and Amersham, the road closely follows the route of the London/Harrow-on-the-Hill/Aylesbury railway lines, The Chiltern Line, from Marylebone, and runs near several stations along that line.

At Amersham Common, the road turns south-west and continues in that direction joining the Amersham by-pass (A413) for a short distance, and then proceeds towards High Wycombe. After passing through the town centre, and crossing the A40, it changes to a dual carriageway up the hill to the M40 Junction 4, and continues as a dual carriageway past Marlow and Bisham.

The road eventually becomes the A404(M) at Maidenhead Thicket. It then runs a short distance towards the M4 where the A404(M) finally terminates at Junction 8/9.

Recent Changes

A number of changes have been made to the course of the A404 since the 1970s including:

  1. The building of the "Marlow by-pass" section of the A404 in 1972 (which replaced the old road from Handy Cross to Marlow).
  2. The building of the "Amersham by-pass", A413, in 1987 which meant the A404 no longer went through Amersham Old Town, but skirted to the west and north of Amersham.
  3. The building in 1992 of the section by-passing Burchetts Green roundabout and the village of Stubbings in Berkshire. This section also allowed the A404 to continue neatly into the A404(M) (formerly the A423(M)) without drivers having to negotiate a roundabout.

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