A404 road

UK road routebox
road= A404
length-mi=
length-km=
direction= East-West & North-South
start= Westway, Marylebone, London
destinations= Wembley, Harrow, Northwood, Rickmansworth, Amersham, High Wycombe, Marlow
end= Maidenhead
construction-date=
completion-date=
junctions=ukroadsmall|40
ukroadsmall|219
ukroadsmall|406
ukroadsmall|312
ukroadsmall|410
ukroadsmall|412
ukroadsmall|413
ukroadsmall|416
ukroadsmall|355
ukroadsmall|40
ukroadsmall|308
ukroadsmall|4
ukmotorwaysmall|25
ukmotorwaysmall|40
(ukmotorwaysmall|4)

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

The road initially follows a course through London and its suburbs including Harlesden, Wembley, Harrow and Rickmansworth. It crosses the M25 at Chorleywood and continues into Buckinghamshire towards Little Chalfont and Amersham.

Between Paddington and Amersham, the road closely follows the route of the Chiltern Railways Marylebone to Aylesbury service and runs right past several stations along that line.

At Amersham Common, the road turns south-west and continues in that direction passing the rest of Amersham towards High Wycombe. After winding through Wycombe town centre, it changes to a dual carriageway up to the M40 Handy Cross junction and continues as a dual carriageway past Marlow and Bisham.

The road eventually turns into the A404(M) at Maidenhead Thicket. This then runs a short distance to 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:

# The building of the "Marlow by-pass" section of the A404 in 1972 (which replaced the old road from Handy Cross to Marlow).
# The building of the "Amersham by-pass" in 1987 which meant the A404 no longer went through Amersham old town.
# 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.