The bridge structure was deemed unsafe following investigation due to rotation and movement; the structure required stabilisation. The works comprised of Bridge Strengthening works including insitu concrete to invert, 42m long ground anchors and all associated temporary works.
The sea defences at Aberthaw Power Station site were constructed during the mid-1950’s. They comprise a perimeter sea wall, a series of groynes, and a revetment along the banks of the River Thaw. The sea wall surrounds the south and west sides of the site and comprises a site cast concrete gravity retaining wall. The front of the wall has a concave face to deflect waves and stands approximately…
Installation of eel friendly tidal flap valve to existing concrete head wall for flood prevention.
Structural surveys identified that Llandanwg Culvert was structurally unsafe and required repair. To make the structure safe, a confined space team was required to rake out and reseal fractures to the barrel and wing walls.
Following investigation, it was identified that there was approximately 5.5m in length scour occurring to the earth embankment adjacent to the culvert; the culvert headwall and wing walls were also in relatively poor condition.