Walker Construction UK » Bridge

Harley Shute Footbridge

sue — Thu, 11 Aug 2011 07:32:35 +0000

The works comprised of the erection of side hoardings and gates. We provided and maintained traffic management measures for the duration of the works. We obtained the design and technical approval for suitable access scaffolding arrangements. We had to dismantle and remove the existing GRP parapet panels. Then install are replacement system of parapet panels and to complete the project we carried out maintenance painting of the footbridge.

West Hampstead Footbridge

sue — Wed, 19 Jan 2011 13:31:15 +0000

The contract works included for 14 metres to 20 metres deep concrete CFA piles, installed to each platform, so as to form the link bridge foundations. The works also involved the complete management of the link bridge installation.

The new footbridge is a unique design which is currently the largest sized footbridge installed within the Southern section.

The sections of the bridge consisted of complete stair sections, complete lift shaft sections and complete link span sections. Due to the size of sections a 1000 tonne crane was utilised to lift the sections into position. Two number all line block possessions were required to completely install the footbridge.

Oxhey Park Bridge, Watford

sue — Wed, 19 Jan 2011 13:28:06 +0000

The works involved the design and construction of a new bridge to span across the River Colne to provide access for cyclists and pedestrians.

Bracknell Station

sue — Tue, 20 Apr 2010 10:50:37 +0000

The works involved the construction of a new single span steel footbridge, lift shafts and stair access between platforms 1 and 2 including groundworks and electrical installation but excluding the lift installation.

Thorpe Le Soken

sue — Tue, 20 Apr 2010 10:45:21 +0000

The works were to the underside of bridge soffit – 4000 psi pressure washed with munro spinning head. Mechanical preparation to corrosion sores. Painting to Network Rail specification M24. 800 m2.

Roadside parapet – fully encapsulated scaffold. Wet grit blasted to remove lead coated paint. Removed hazardous waste. Dry blasted to standard SA 2.5. painting to Network rail specification M20. 250 m2.

Trackside handrails and girders – 4000 psi pressure washed with munro spinning head. Mechanical preparation to corrosion sores. Painting to Network Rail specification M24. 350 m2.

Laindon High Road

sue — Tue, 20 Apr 2010 10:40:52 +0000

The works included for the removal of the existing road surfacing, footpaths etc… We excavated to bridge deck level to expose existing waterproofing layer. Supplied and laid new Wolfrin waterproof membrane to bridge deck. We reinstated the carriageway to Local Authority specification including for new footpaths and deterrent paving. All works carried out on half road closures.

Seven Sisters Road

sue — Tue, 20 Apr 2010 10:38:39 +0000

Trackside – 4000 psi pressure wash with munro spinning head to parapet and deck. Power disc corrosion sores. Applied paint to Network Rail specification XM92 (M24). Surface area 970 m2.

Roadside parapet – fully encapsulated scaffold. 1500 psi pressure wash to remove salts and contaminants. Wet grit blast to remove lead coated paint. Cleared and removed hazardous waste. Dry grit blast to standard SA 2.5. applied paint to Network rail specification XM92(M21). Surface area 540 m2.

Roadside soffit and cross girders – 4000 psi pressure wash with munro spinning head. Power disc corrosion sores. Applied paint to Network Rail specification XM92 (M24). Surface area 1300 m2. Works were carried out during night time lane closures.

All works completed on time and in budget.

Spexhalls Rail Bridge

sue — Tue, 20 Apr 2010 10:33:29 +0000

The works involved brickwork repairs, the installation of temporary access works, the installation of precast concrete bridge beams, the complete construction of a new carriageway including waterproofing and services ducting.

Ely Underbridge

barry — Fri, 14 Aug 2009 13:42:59 +0000

To construct two insitu concrete constructed box culverts, with front abutments, to the East & West banks to house a new steel constructed bridge to carry rail freight over the River Great Ouse. Also included in these works was loose laid Wolfin waterproofing membrane to the overbridge section, bridgeguard concrete protection system sprayed to all external surfaces and site fencing re-instated to match existing.

Orpington Station

barry — Fri, 14 Aug 2009 13:42:48 +0000

Fabrication and installation of a new steelwork pedestrian footbridge, lift shafts and stair access to existing island platforms. Installation of new lift cars and lift machine rooms and all associated lift services. Installation of piled foundations and reinforced pile caps, pits and slabs. Existing services protection and diversions and installation of new services including power supply cables, lighting and drainage, signage on step free route. Installation of tactile paving at platform edges and to the top and bottom of proposed stairs.

Ockley Bridge

barry — Fri, 14 Aug 2009 13:42:37 +0000

The works comprised of the Demolition of the existing bridge and a section of the adjacent walls. The bridge and adjacent walls were then Reconstructed including underpinning and all associated works.

Cramner Bridge

barry — Fri, 14 Aug 2009 12:52:13 +0000

The bridge is a steel structure spanning across Cramner Road in East London in a residential area to a local school.

The works were undertaken during a full road closure implemented by Walker Construction. An encapsulated structure was erected to the soffit and parapets of the structure to enclose all exposed areas of steelwork. The encapsulation included for insulation within the side walls to reduce the noise of the works. The structure was shotblasted to SA2.5 and a M20 paint system was applied to all exposed steel areas. The works were undertaken during January through to March 2005. Despite the weather conditions during the Winter months the works were finished to programme and to the specified standard. Contingency plans were made within the original programme for weather related delays as well as mitigating bad weather with regards to steel, temperatures, humidity etc.

Bryants Bridge

barry — Fri, 14 Aug 2009 11:38:58 +0000

The demolition and reconstruction of the main span of a three span arch bridge.

The main span was replaced with a precast concrete beam and an insitu concrete deck over, complete with waterproofing new P2 parapets, reconstruction of approach roads, drainage, safety barrier and landscaping works.