Hertford West
| Structure No | 90471 |
| Structure Name | Hertford West |
| Last PI Date | 14-Apr-2014 |
| Next PI Date +/- 6 Month | 20-Feb-2020 |
| Last GI Date | 21-Feb-2013 |
| Next GI Due +/- 6 Month | 21-Feb-2015 |
| Route | M1 |
| X | 315936 |
| Y | 361387 |
| Spanning | M1 |
| Orientation | – |
| Skew | – |
| Span Length | 55.30 |
| Structure Type | 4 span continuous, simply support at Abutments |
| Joint Type | Asphaltic Plug |
| Parapet | Metal Painted |
| Construction Year | 1967 |
| HA_Rating | 40 |
| HB_Rating | 45 |