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Mr. Speed
asked the Secretary of State for Transport if he will give the latest estimated completion dates for all the outstanding sections of the M25 and M20 motorways for which a line has been fixed.
Mrs. Chalker
Depending on completion of statutory procedures, the estimated opening dates for outstanding sections of the M25 are as follows:
| Section | Estimated Opening Date |
| Heathrow airport spur - M4 | Summer 1985* |
| M4 - M40 | Summer 1985* |
| M40 - Maple Cross | Spring 1985 |
| Micklefleld Green - South Mimms | Summer 1986 |
| A10 - M11 | Winter 1983 |
| Mil - A12-A127 | Spring/Summer 1983 |
| Swanley - Sevenoaks | Winter 1985 |
| Reigate - Leatherhead | Spring 1985 |
| Leatherhead Interchange | Spring 1985 |
| Leatherhead - Wisley | Spring 1985 |
| Wisley - Chertsey | Winter 1983 |
| * Complete M4 interchange Spring 1986. | |