Region: South East
M23. London to Pease Pottage and Gatwick Spur
Statistics and options.
| Section | Construction started | Opened to traffic |
| Hooley to Mertsham (J7 to J8) | January 1972 | December 1974 |
| Mertsham to Pease Pottage (J8 to J11) | February 1972 | November 1975 |
| Gatwick Link (J9 to J9A) | April 1974 | November 1975 |
| North-facing sliproads at Maidenbower (J10A) | ? | 1997 |