Case Studies | Dyer & Butler - Multi-Disciplined Civil Engineers

GASHCO Interceptor Installation, Gatwick

Client: GASHCO Value: £0.6m Contract: ICE Conditions of Contract 7th Edition Excavation and installation of temporary works to enable the placing of three no. full retention interceptors. The scope of the work covers the installation of three no. new Class 1 full retention interceptors, (Condor Environmental Solutions CNS200s-7.53X4M diameter) together with modifications to the...

Gatwick Stream Attenuation Scheme

Client: Gatwick Airport Ltd Value: £0.4m Contract: NEC3 Enabling works package for Gatwick Stream Flood Attenuation project. Dyer & Butler delivered an enabling works package for the Gatwick Stream Flood Attenuation project, which consisted of supervising over 30 archaeologists for over six weeks while they cleared the area for the subsequent project. Further...

Heathrow Airport, Substation 260

Client: Ferrovial Agroman Airports (UK) Ltd Value: £0.65m Contract: NEC3 Option A Construction of a reinforced concrete substructure for Substation 260 and the installation of four PP3 type precast concrete pits and associated ductwork. The project requirement was for the removal of existing PQ taxiway, excavation and construction of a reinforced concrete substation base measuring 40m x...

Heathrow Airport, Terminal 2 Concourse B North Substructure

Client: BAA Plc / Balfour Beatty Value: £5.33m Contract: NEC3 Option A Substructure enabling works for the construction of Terminal 2 Concourse B North. The works comprised the construction of foundations and a ground floor slab. Dyer & Butler delivered enabling works for the construction of Terminal 2 Concourse B North as a key sub-contractor to the Principal...

Project Red, Severnside, Bristol

Client: Severnside Distribution Land Ltd Value: £0.97m Contract: ICE Minor Works 3rd Edition Full depth construction of 450 linear meters of new access road and roundabout. The works also included installation of over 10,000 wick drains, new embankment construction, drainage and the construction of a piled culvert. Dyer & Butler delivered enabling works for construction of a...

Forest Road Bridge, Effingham, Surrey

Client: Surrey County Council Value: £1.03m Contract: ICE 7th Edition The project comprised the construction of a new sheet pile retaining wall and reinforced concrete capping beam with a N2 W2 vehicle restraint system on all four quadrants of the bridge approaches. The work also included diversion of existing services and the full depth reconstruction of...

West Medina Mills, Stag Lane, Newport, Isle of Wight

Client: South East England Development Agency (SEEDA) Value: £2.6m Contract: ICE 7th Edition The existing reinforced concrete road was demolished and a new 1.2km adopted highway constructed in its place to provide access for a new Wind Turbine R&D facility on the Isle of Wight. Associated works included storm water drainage, a 3m wide cycleway along...

Bedhampton Gyratory Highway Improvements

Client: South East England Development Agency (SEEDA) Value: £3.5m Contract: ICE 6th Edition Improvement works to facilitate the traffic flow through the Bedhampton Gyratory. Works comprised traffic signalisation, carriageway / roundabout widening, construction of new left turn lane, footpath and cycleway works. The project delivered improvements to the existing highway network through the Bedhampton Gyratory by increasing...

Project Blue, Severnside, Bristol

Client: Severnside Distribution Land Ltd Value: £2.96m Contract: ICE Minor Works 3rd Edition Following the successful completion of Project Red, Dyer & Butler delivered a further two phases of enabling works at Severnside. Phase 1 involved significant site clearance works, construction of carriageway and associated drainage, culvert construction, and underpinning works to stabilise the existing high...

A4 Shepherds House East Bridge, Wokingham

Client: Wokingham Borough Council Value: £0.97m Contract: NEC3 Option A Renovation of an existing elliptical brick arch bridge designed by Isambard Kingdom Brunel and constructed in the 1830s. Works comprised extensive brickwork repairs, strengthening of the existing concrete deck, services diversions and full depth carriageway reconstruction. Dyer & Butler undertook the refurbishment of the A4 Shepherds House...

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