A404(M)

Start

Stud Green

End

Woolley Green

Passes

Maidenhead

Connects to

A308(M)

Length

2 miles

Construction timeline

Open	Junctions	Section
May 1961		Entire motorway	Formerly M4.

Exit list

Junction	Northbound				Southbound
9B 48.8 km	Twyford Reading Maidenhead A4 Marlow High Wycombe Oxford (M40 Link) A404	A4	*NORTH* A404 (M40)	A4	N/A	Details
9B 48.8 km		A4	*NORTH* A404 (M40)	A4		Details
	1 mile, 2 lanes				1 mile, 2 lanes
9A 46.2 km	Cox Green White Waltham				Cox Green White Waltham	Details
9A 46.2 km						Details
	1 mile, 2 lanes				1 mile, 2 lanes
M4 J8/9 45.2 km	N/A	M4	*SOUTH*	A308(M) M4	Windsor A308(M) Link London Slough Heathrow M4 Link The WEST Reading M4 Link	Details
M4 J8/9 45.2 km		M4	*SOUTH*	A308(M) M4		Details

Routes

A404(M)

Picture credits

Photograph of the A404(M) is taken from an original by David Dixon and used under this Creative Commons licence.

With thanks to Peter Harris, Tim Lidbetter and James Broadway for information on this page.

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