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Projects » Geotechnical

New Gas Bag for Southport WwTW

Civil Geotechnical Structural

As part of United Utilities improvements to Southport WwTW a new state of the art gas bag retention system has been installed to replace the traditional gas holders. Methane produced from sludge treatment will be stored in the bag and this gas will then be turned into electricity to help…

Dukinfield Waste Water Treatment Works – Nitrifying Trickling Filter

Civil Geotechnical Structural

PaSCoE were commissioned to design the civils structures associated with the construction of a new Nitrifying Trickling Filter (NTF) to supplement an existing bank of NTF’s supplied by a single distribution chamber. The works included the design and detailing of piled foundations for the new post tensioned precast segmental tank…

Cambrian Quarry – New life for former ‘Vim’ quarry

Civil Earth Structures Geotechnical

The geology to the west of Mold in North Wales has a long history of extractive industries. Mineralised veins within the rocks have been mined for lead, and mine voids have been used for drainage and storage, including munitions and explosives. At Cambrian Quarry in Gwernymynydd, underground workings extracted the…

Rope Walk, London – Piled Tower Crane Base Stability

Geotechnical Railways Structural Temporary Works

While the collapse of tower cranes is rare, accidents and near misses do occur. Generally these result from events, either singly or in combination, which are not anticipated, events or actions that cause unexpected loads, or from errors during the design, erection, use or dismantling. Failures of any part of…

Ben Gill, Cumbria – Back to Nature

Civil Earth Structures Geotechnical Structural

Engineering work on the weir of Ennerdale Water in the 1950s raised the level of the lake, increasing its storage capacity and ensuring a more secure potable water supply. As part of this work, one of the tributaries of the River Ehen (Ben Gill) was diverted to Ennerdale Water via…

Sustainable Urban Drainage – Innovative underground storage solution

Civil Geotechnical Structural

Working in partnership with Stormwater Management Ltd we have provided the technical support to assist in the design and construct an innovative sustainable urban drainage system – the Elevator attenuation storage tank. The unique uPVC permanent formwork solution creates an innovative means of economising material needs whilst achieving excellent structural…

Greystone Footbridge Replacement – The End for the Sausage Bridge

Geotechnical Structural Temporary Works

Greystone Footbridge, known locally as the ‘sausage bridge’, has helped generations of the local community to safely cross the M62 since opening in 1973. The footbridge has now reached the end of it serviceable life and Knowsley Council is investing in a new modern replacement bridge that will cater for…

14m high wall supports the flow of electricity from Scotland to England

Civil Earth Structures Geotechnical Structural

As part of the major FACTS (Flexible Alternating Current Transmission System) project by National Grid to boost the flow of electricity from Scotland to England cutting edge design TCSC (thyristor controlled series compensation) equipment was required at the Hutton 400 kV Hutton Substation near Kendal in Cumbria. This exciting project…

800 year old Kirkstall Forge gets a new lease of life

Civil Earth Structures Geotechnical Structural

A historic part of Leeds is being given a new lease of life as Kirkstall Forge is set kick start the regeneration of the area. For over 800 years Kirkstall Forge has been a vital part of Leeds’ industrial heritage, with this part of the city forging metal since 1147…

Hayeswater Reservoir returned to a natural tarn

Civil Geotechnical

After more than 100 years of public service Hayeswater Reservoir has been restored to the natural mountain tarn it once was. Dammed in 1908 to provide drinking water to communities around Ullswater the reservoir was declared surplus to requirements in 2005. The project team of United Utilities, PaSCoE, and Eric…

Crossrail – Stockley Airport Junction

Earth Structures Geotechnical Railways Temporary Works

Crossrail is amongst the most significant infrastructure projects ever undertaken in the UK – from improving journey times across London, to easing congestion and offering better connections. Crossrail will deliver a high frequency, high capacity service to 40 stations linking Reading and Heathrow in the west, to Shenfield and Abbey…

A27/A270 Junction Improvements Brighton

Civil Earth Structures Geotechnical Structural

To support the construction of a new Community Stadium and new building works by the University of Brighton the existing road network required major improvements to interface with the existing and proposed infrastructure. The new Brighton and Hove Albion Stadium Project required improvements to the A270 Lewes Road which included…

Eltham Embankment Stabilisation

Featured Geotechnical Railways Temporary Works

Evidence of both deep seated and shallow instability had been reported on the Down slope of the Eltham embankment located approximately 300m to the west of Eltham Station between Eltham and Kidbrooke stations at ELR: BEX 8m 61.5ch to 8m 70ch. Remedial works in the form of soil nailing, track…

Thameslink Tight Squeeze

Civil Geotechnical Railways Temporary Works

The £6bn Thameslink Programme has now entered its second phase of project delivery. This monumental scheme, driven forward by the rapidly expanding demand for rail services is focused on transforming the Thameslink transport artery into a more accessible link through the heart of London The upgrade and expansion of the…

Daniels Mill Slope Reconstruction

Earth Structures Geotechnical Temporary Works

Daniels Mill is a fully working watermill set in the idyllic Shropshire countryside, deep in a wooded steep valley crossed by the 19th century viaduct carrying the Severn Valley Railway to Bridgnorth. Its impressive waterwheel has been carefully restored to its former glory and is the largest waterwheel powering a…

Tanners Hill

Geotechnical Railways Temporary Works

To improve capacity on the line between London Bridge and Lewisham, a new stretch of single track has been built alongside the original bi-directional single track between Tanners Hill Junction (near St John’s Station) and Lewisham Vale Junction. Before the new track was laid, St John’s Vale Road Bridge was…

Piethorne Water Treatment Works

Geotechnical Temporary Works

An existing access road to the Piethorne Water Treatment Works had started to fail, and tension cracks were observed in the road surface. PaSCoE were commissioned by Eric Wright Civil Engineering to design a temporary access track to maintain access for deliveries to the Piethorne & Wickenhall Water Treatment Works….

Littleborough Station

Earth Structures Geotechnical Railways Structural

Littleborough Station is constructed on top of a high embankment with a car park at the bottom. Stairs provided the only pedestrian access from the car park, limiting access to the station for wheelchair and pram users. As part of Network Rail’s ‘access for all’ programme for providing step free…

A46 Bingham Railway Bridge

Geotechnical Railways Structural Temporary Works

As part of the A46 Widmerpool Improvement Scheme an existing masonry railway bridge at Bingham required replacement to accommodate four lanes of traffic below. The bridge was designed to be constructed off line and under a 72 hour Christmas possession to be driven into position using self-propelled modular transport (SPMTs)….

Ogden IR Sheet Piles & Channel

Geotechnical Temporary Works

Flood studies and physical model tests demonstrated that the original overflow and spillway facilities at the Ogden Impounding Reservoir were unable to pass the Probable Maximum Flood (PMF) without overtopping onto the main earth embankment with a consequent risk of failure due to the destructive action of out-of-channel flows.  The…

Ogden IR Wedge Block

Geotechnical Structural

Flood studies and physical model tests demonstrated that the original overflow and spillway facilities at the Ogden Impounding Reservoir were unable to pass the Probable Maximum Flood (PMF) without overtopping onto the main earth embankment with a consequent risk of failure due to the destructive action of out-of-channel flows.  The…

Asda Rochdale

Civil Earth Structures Geotechnical

When ASDA opted to construct a new distribution warehouse in Rochdale a site was identified close to the M62, overlooking a number of residential properties. The site was heavily sloping and a cut and fill exercise highlighted the need for a 4-5m high retaining structure to support the lorry access…

Stubbin Lane & Willowbank

Geotechnical Railways Temporary Works

As part of upgrading works on the East Coast Mainline, a new parapet was to be installed on Stubbin Lane bridge and a complete deck replacement at Willowbank bridge on the Elsecar to Wombwell line. On both bridges heavy craneage was required to lift in the bridge beams and the…

Ogden IR Dam Stability

Geotechnical

Flood studies and physical model tests demonstrated that the original overflow and spillway facilities at the Ogden Impounding Reservoir were unable to pass the Probable Maximum Flood (PMF) without overtopping onto the main earth embankment with a consequent risk of failure due to the destructive action of out-of-channel flows.  The…

Holden Wood IR

Civil Earth Structures Featured Geotechnical Structural Temporary Works

Flood studies and physical model tests demonstrated that the existing overflow and spillway facilities at the Holden Wood Impounding Reservoir were unable to pass the Probable Maximum Flood (PMF) without overtopping onto the main earth embankment with a consequent risk of failure due to the destructive action of out-of-channel flows….

Bookham Embankment Stabilisation

Earth Structures Geotechnical Railways Structural

Bookham embankment is located between Effingham Junction and Leatherhead Junction. A section of the line is built upon an embankment up to 5.5m high with a slope angle of 31°. The embankment was constructed mainly using remoulded soft clay, and a circular slip failure had resulted in movement of the…

Rooley Lane

Earth Structures Geotechnical

Marks & Spencer launched a programme to consolidate its existing logistics network and needed a new centralised distribution facility in the North of England. Prologis had acquired the West Bowling Golf Club in a 50/50 joint venture partnership with Marks & Spencer; the site being adjacent to the M606 and…

Preston WTS

Geotechnical

The Lancashire Waste Network comprises the treatment of household waste from the 15 local authorities at 4 Central Waste Treatment Facilities supported by 11 Waste Transfer Stations. The Preston Waste Transfer Station (WTS) will process 60,000 tonnes per annum of mixed waste with future expansion to include a 26,000 tonnes…

Poaka Beck

Geotechnical Structural Temporary Works

The project required the replacement of an existing siphon pipeline situated just under the surface of the upstream face, crest and downstream face of the Poaka Beck Impounding Reservoir Dam, near Ulverston, Cumbria. The siphon pipeline has a dual purpose, serving as the supply pipeline to Poaka Beck Water Treatment…

Baystone Bank

Geotechnical Structural

Baystone Bank Reservoir impounded the Whicham Beck and the Whicham Beck tributary. The total catchment area at the dam was 2.47km2, with approximately 93% accounted for from the Whicham Beck and 7% from the tributary. The standard average annual rainfall for the catchment is 1,780mm. A by-wash channel allowed reservoir…

Midland Quarry

Earth Structures Geotechnical

A former sandstone and diorite quarry on a 16hectare site near Nuneaton was to be redeveloped by Redrow Homes for new residential housing. To maximise the available land required the construction of a new retaining structure within the existing quarry. The existing quarry comprised a partially flooded Main Void and…

Foxbank Bewdley

Earth Structures Geotechnical

Following rain storms in Worcestershire movement occurred in retaining walls and steep garden slopes rising above and behind “Foxbank”, a house on the busy Cleobury Road in Bewdley. Power supply poles in the garden tilted and foul sewerage pipes were fractured.  The site was small but access problems were immense,…

Buttershaw School

Earth Structures Geotechnical

Buttershaw High school was included in Phase 1 of the Government ‘Building Schools for the Future’ programme. The scheme entailed the demolition of existing school buildings and the construction of a new school building, car parking and sports facilities. The school site was constructed over varied topography which required the…

Ray Hall Viaduct

Geotechnical Temporary Works

Ray Hall Viaduct forms part of the M6 elevated network carrying the motorway over the River Tame and the Tame Valley Canal embankment. The viaduct comprises a RC beam supported on four RC columns – known as bents – on a piled foundation. Cathodic protection was required to a number…

Allescholes Landslip Stabilisation Works

Civil Earth Structures Geotechnical

The existing embankment pre-failure comprised of a clay slope at an approximate inclination of 1:1.5, with a height of approximately 8m falling to a stream at the base of the slope. Road drainage was directed to a ditch at the side of the embankment falling to the stream at the…

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