Section |
Construction started |
Opened to traffic |
|
January 1985 |
September 1986 |
|
May 1974 |
April 1977 |
Swanley to Dunton Green |
January 1984 |
February 1986 |
Dunton Green to |
September 1977 |
July 1980 |
|
December 1976 |
November 1979 |
Westerham to Godstone (J6) |
July 1976 |
November 1979 |
Godstone to |
January 1972 |
February 1976 |
|
May 1983 |
October 1985 |
Leatherhead interchange |
July 1982 |
October 1985 |
Leatherhead to Wisley |
November 1982 |
October 1985 |
Wisley to |
September 1981 |
December 1983 |
Advance bridges |
November 1978 |
September 1980 |
|
July 1978 |
October 1980 |
|
April 1976 |
December 1977 |
Thorpe to Egham (J12 to J13) |
July 1974 |
December 1976 |
Egham to Yeoveney (J13) |
January 1979 |
October 1981 |
Yeoveney to Airport spur (J13 to J14) |
September 1980 |
August 1982 |
|
June 1977 |
July 1980 |
Airport spur to M4 (J14 to J15) |
April 1983 |
December 1985 |
M4 to Iver Heath (J15 to J16) |
April 1983 |
September 1985 |
M40 Interchange (J16) |
July 1982 |
September 1985 |
M40 to Maple Cross (J16 to J17) |
January 1983 |
January 1985 |
Maple Cross to |
October 1973 |
February 1976 |
Micklefield to |
Various |
October 1986 |
|
May 1973 |
September 1975 |
Potters Bar to |
June 1979 |
June 1981 |
|
September 1980 |
January 1984 |
River Lee to Upshire(J26) |
July 1981 |
January 1984 |
Upshire to Theydon Garnon (J26 to J27) |
June 1981 |
January 1984 |
Theydon Garnon(J27) to PassingfordBridge |
October 1980 |
April 1983 |
|
January 1981 |
April 1983 |
|
October 1980 |
April 1983 |
|
September 1979 |
December 1982 |
|
January 1979 |
December 1982 |
|
March 1957 |
November 1963 |
|
June 1972 |
May 1980 |