Castlewellan RD
| Structure No | 41447 |
| Structure Name | Castlewellan RD |
| Last PI Date | 30-May-2009 |
| Next PI Date +/- 6 Month | 16-Dec-2015 |
| Last GI Date | 28-Jul-2011 |
| Next GI Due +/- 6 Month | 21-July-2017 |
| Route | A1 |
| X | 313573 |
| Y | 345344 |
| Spanning | A1 |
| Orientation | W-E |
| Skew | 21.00 |
| Span Length | 38.50 |
| Structure Type | Underbridge – 2 Span, simply supported structure |
| Joint Type | – |
| Parapet | Metal Painted |
| Construction Year | 1978 |
| HA_Rating | 40 |
| HB_Rating | 45 |