- A4146 between LA boundary and Buckinghamshire boundary, Buckinghamshire (Grid ref SP881300)
- A4146 between Buckinghamshire boundary and Buckinghamshire boundary, Buckinghamshire (Grid ref SP888279)
- A4146 between Tongwell St and A509, Milton Keynes (Grid ref SP890400)
- A4146 between Milton Keynes boundary and A5, Milton Keynes (Grid ref SP892331)
- A4146 between A421 and Childs Way, Milton Keynes (Grid ref SP896390)
- A4146 between LA boundary and A418, Central Bedfordshire (Grid ref SP897240)
- A4146 between Bletcham Rndbt (A5) and Brinklow Rndbt (A421, Milton Keynes (Grid ref SP900360)
- A4146 between Rothschild Rd and LA boundary, Central Bedfordshire (Grid ref SP905264)
- A4146 between B4032 and Rothschild Rd, Central Bedfordshire (Grid ref SP913255)
- A4146 between Central Bedfordshire boundary and A4146, Central Bedfordshire (Grid ref SP915233)
- A4146 between B4032 and A4012, Central Bedfordshire (Grid ref SP919251)
- A4146 between A4012 and A505, Central Bedfordshire (Grid ref SP920234)
- A4146 between Chartmoor Rd and A4012, Central Bedfordshire (Grid ref SP928239)
- A4146 between A505 and Chartmoor Rd, Central Bedfordshire (Grid ref SP929237)
- A4146 between LA boundary and A505, Central Bedfordshire (Grid ref SP943220)
- A4146 between B489 and Buckinghamshire boundary, Buckinghamshire (Grid ref SP950208)
- A4146 between B489 and B4508, Buckinghamshire (Grid ref SP990164)
- A4146 between LA boundary and B4506, Buckinghamshire (Grid ref SP994157)
- A4146 between Central Bedfordshire boundary and LA boundary, Central Bedfordshire (Grid ref TL007142)
- A4146 between A4147 and LA boundary, Hertfordshire (Grid ref TL033109)
- A4146 between A4251 and A414, Hertfordshire (Grid ref TL050061)
- A4146 between Gadebridge Lane and A4147, Hertfordshire (Grid ref TL050084)
- A4146 between Warners End Road and A4147, Hertfordshire (Grid ref TL050084)
- A4146 between A414 and Gadebridge Lane, Hertfordshire (Grid ref TL053070)
- A4146 between A414 and Warners End Road, Hertfordshire (Grid ref TL053070)