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Construction Timeline

When the various parts of the M40 were built, listed in chronological order. An asterisk (*) indicates a temporary terminus located close to a present-day junction.

Open Jct Section
1967 J4-5 Handycross - Stokenchurch
1969 J2*-4 Holtspur Temp. Terminal - Handycross
1971 J2-2* Beaconsfield Bypass
1973 J1-2 Gerrards Cross Bypass
1974 J5-8 Pitmore - Chilworth
1989 J15-M42 J3a Longbridge - Umberslade
1991 J8-15 Waterstock - Longbridge