Dates

 


The M25 - Statistics

 

Section

Construction started

Opened to traffic

Dartford Tunnel Southern Approach

January 1985

September 1986

Dartford to Swanley (J1 to J3)

May 1974

April 1977

Swanley to Dunton Green

January 1984

February 1986

Dunton Green to Sundridge Road

September 1977

July 1980

Sundridge Road to Westerham

December 1976

November 1979

Westerham to Godstone (J6)

July 1976

November 1979

Godstone to Reigate (J6 to J8)

January 1972

February 1976

Reigate to Leatherhead

May 1983

October 1985

Leatherhead interchange

July 1982

October 1985

Leatherhead to Wisley

November 1982

October 1985

Wisley to Chertsey (J11)

September 1981

December 1983

Advance bridges

November 1978

September 1980

Chertsey to Thorpe (J11 to J12)

July 1978

October 1980

Chertsey link

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

Runnymede bridge

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 Hunton Bridge (J17 to J19)

October 1973

February 1976

Micklefield to South Mimms (J19 to J23)

Various

October 1986

South Mimms to Potters Bar (J23 to J24)

May 1973

September 1975

Potters Bar to Waltham Cross (J24 to J25)

June 1979

June 1981

Waltham Cross(J25) to River Lee

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

Passingford Bridge to Brentwood(J28)

January 1981

April 1983

Brentwood to North Ockendon (J28 to J29)

October 1980

April 1983

North Ockendon(J29) to Stifford Road

September 1979

December 1982

Stifford Road to Mar Dyke

January 1979

December 1982

Dartford Tunnel North Approach

March 1957

November 1963

Dartford Tunnel

June 1972

May 1980