Region: North West
M6 Preston By-pass (J29 to J32)
Statistics and options
| Scheme | Construction started | Opened to traffic |
| Preston By-pass | June 1956 | 5th December 1958 |
| Hard shoulders added | 1963 | |
| Widened to three lanes | 1967 | |
| Widened to four lanes | August 1995 |