Pen-y-Geulan, Cynwyd, Culvert Reconstruction (Ангилья - Тендер #45800047)

Pen-y-Geulan, Cynwyd, Culvert Reconstruction

The Works comprise briefly of the replacement of the existing masonry culvert with a ‘free issue’ precast concrete box culvert. New parapets, stepped spillway, training walls and aprons will be constructed. The upstream ditch is to be regraded and lined with concrete canvas.

• Maintaining traffic management.

• Careful removal and infilling of existing culvert, including headwalls and fences to both elevations.

• Excavation and new culvert laying, new stepped spillway, headwalls, training walls and aprons.

• Collection (from Lon Parcwr Depot, LL15 1NA), delivery and offloading to site and installation of new ‘free issue’ precast concrete culvert units.

• Waterproofing new culvert.

• Construction of re-graded and concrete canvas protected inlet ditch.

• Construction of masonry faced concrete headwalls, training walls, stepped spillway and parapets

• Reinstatement of highway surfacing with new kerbs, carriageway markings and bollards.

• Reinstatement of fencing to elevations.

• Minimal use of full-highway closures.

• Maintain safe vehicle access to Pen-y-Guelan.

• Temporary works shall ensure that water can be conveyed with no pollution during the works until transferred into the new culvert (Note: River Dee SAC/SSSI is 170m downstream).

• Diversion of unknown private copper water pipe assumed to be feeding cattle water.

• Safe working within vicinity of buried BT cables.

• Safe working within vicinity of 11kV buried and overhead line.

• Safe working in excavations and support of surrounding structures.

WKS1000634REQ

6

(WA Ref:134560)