- A4048 between A4047 Beaufort Road and A465 Heads of The Valleys Road, Blaenau Gwent (Grid ref SO140100)
- A4048 between road to Tredegar and A4047, Blaenau Gwent (Grid ref SO142097)
- A4048 between Blaenau Gwent boundary and road to Tredegar, Blaenau Gwent (Grid ref SO151070)
- A4048 between B4511 Penylan Rd and Caerphilly boundary, Caerphilly (Grid ref SO164020)
- A4048 between A4049 and Rhiw Syr Dafydd Hill, Caerphilly (Grid ref ST174970)
- A4048 between Rhiw Syr Dafydd Hill and B4511 Penylan Rd, Caerphilly (Grid ref SO177000)
- A4048 between A4048 and A4048, Caerphilly (Grid ref ST177982)
- A4048 between A472 and A4049, Caerphilly (Grid ref ST179956)
- A4048 between A4048 and A4048, Caerphilly (Grid ref ST181969)
- A4048 between A472 and A4048, Caerphilly (Grid ref ST188962)
- A4048 between A472 and A467 Split, Caerphilly (Grid ref ST200911)