- A688 between A67 and B6279, Durham (Grid ref NZ118200)
- A688 between B6279 and B6274, Durham (Grid ref NZ127205)
- A688 between B6274 and Copeland Rd, Bishop Auckland, Durham (Grid ref NZ150228)
- A688 between Copeland Rd and A68, Durham (Grid ref NZ178261)
- A688 between A68 and A6082, Durham (Grid ref NZ197268)
- A688 between A68/Front St and A6072, Durham (Grid ref NZ197272)
- A688 between A6072S and A6072N, Durham (Grid ref NZ213283)
- A688 between A6072 and A689, Durham (Grid ref NZ220289)
- A688 between A689 and Whitehouse Rd roundabout, Durham (Grid ref NZ242322)
- A688 between Whitehouse Rd roundabout and B6288 roundabout, Durham (Grid ref NZ260335)
- A688 between B6288 roundabout and A167, Durham (Grid ref NZ270338)
- A688 between A167(T) and A177, Durham (Grid ref NZ292347)
- A688 between A177 and A1(M), Durham (Grid ref NZ304364)
- A688 between A1M and A181, Durham (Grid ref NZ316385)