| Structure No | 42114 |
| Structure Name | Tullyloob Rail Tunnel |
| Last PI Date | 06-Feb-2009 |
| Next PI Date +/- 6 Month | 06-Feb-2015 |
| Last GI Date | 15-Sep-2011 |
| Next GI Due +/- 6 Month | 24-Oct-2015 |
| Route | M1 |
| X | 312100 |
| Y | 361709 |
| Spanning | Railway |
| Orientation | W-E |
| Skew | 75.00 |
| Span Length | 9.52 |
| Structure Type | Underbridge – single span continuous structure |
| Joint Type | Asphaltic Plug |
| Parapet | Metal Painted (Lead) |
| Construction Year | 1960 |
| HA_Rating | 40 |
| HB_Rating | 45 |