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Active Tunnelling Ltd

As an industry leader since 1994, Active Tunnelling Ltd (ATL) is the UK’s most experienced independent, Micro-tunnelling, auger boring shaft sinking and pipe jacking company offering a comprehensive range of services to the water and civil engineering industries across the UK & Ireland.

More than just a tunnelling company ATL delivers all encompassing projects solutions: whether it is a segmental shaft or complete project management from ‘tunnel’ to final landscaping, ATL delivers flexible, and tailor made solutions to suit any brief.

ATL prides itself on its long list of clients that includes amongst others the UK’s leading construction companies and is proud to claim total satisfaction on every job. A dedicated and highly skilled/experienced sixty strong team are at the core of ATL’s success, this weight of experience backed by the UK’s largest independent specialist plant enables ATL to deliver on time every time.

Services

Our comprehensive range of services allows us to satisfy even the most demanding brief, even with short lead times you can place your trust in us leaving you to focus on other aspects of the project.

Tunnelling and pipejacking: 1,000mm – 2,400mm diameter.
Micro-tunnelling: 150mm – 900mm diameter.
Auger boring: 150mm – 725mm diameter.
Grouting.
Shaft sinking.
Cover slab construction.
Timber headings.

ATL offer

Professional management team with over 30 years experience.
Quick mobilisation to site.
Technical support/design where required.
Achilles UVDB Verify approved company.
Quality Assured ISO 9001:2008 Registered Firm Cert. No. A11969.
Fast response to enquiries.
Fast and efficient service maintaining a high standard of safety.
Specialist trenchless plant.
A completed project to a high quality at a reasonable price.
A willingness to work as one team with all parties to ensure satisfaction.

Galmpton Catchment (2024)

WINEP bathing waters project in North Devon to reduce the risk of stormwater overwhelming outlying pumping stations

Lower Gornal STW (2024)

Tertiary treatment upgrades implemented to achieve tightened phosphorus and ammonia consents

Ravenhill Avenue, Belfast, Flood Alleviation Project (2024)

Successful delivery of a £7m project to reduce risk of out-of-sewer flooding, capitalising on the benefits of collaboration through NEC4 Option C Contract

Springwell Service Reservoir (2024)

Design and construction of a 43 ML semi-precast concrete reservoir to provide resilience in South Tyneside and Wearside

WINEP Durham Transfers (2024)

Improving water quality in County Durham and providing a resilient sewer network to support catchment growth

Stroud Sewerage Strategy Project: Part 2 (2023)

The Stroud Sewerage Strategy is a major investment by Severn Trent which is required to overhaul of the existing sewer network by installing almost 3.5km of enlarged sewer pipe, separating surface water from the sewage network, creating additional storage with smart controls to hold stormwater back during large storm events before returning it to the […]

Marhamchurch SPS (2023)

Marhamchurch is a small village around 2.4km south of Bude and has a population of just over 800. Sewage from this village is pumped to a nearby large sewage treatment works which processes the waste from Bude and the surrounding area. The existing Marhamchurch Sewage Pumping Station (SPS) was built around 50 years ago and […]

St Augustines Road Flood Alleviation (2023)

St Augustines Road is a busy thoroughfare in Chesterfield linking the town to Matlock and the south-eastern edge of the Peak District. Lying within the Yorkshire Water (YW) waste catchment area, the road is steep in its nature with gradients often exceeding 7%. Due to the local hydraulic catchment and topography, during heavy rainfall events […]

Johnson Street Storm Overflow Screening Project (2022)

The Johnson Street Storm Overflow (SO) Screening Project in Gateshead was designed to protect the River Tyne from aesthetic pollution improving river quality for the benefit of customers, wildlife and the environment. The SO at Johnson Street was previously a significant unscreened discharge to the River Tyne. The project scope was to screen all spill […]

High Frequency Risk Reduction: Rock View (2022)

In the PR19 agreement, water companies were encouraged to provide resolution to long-standing flooding problems being experienced by customers – but allowed a less prescriptive approach on the actual projects defined in the Water Company’s Price Review submission. This new process allowed the water companies a degree of discretion on the number and frequency of […]

Stroud Sewerage Strategy Project: Part 1 (2022)

Stroud is located in Gloucestershire near the southern boundary of the Severn Trent region between Gloucester and Bristol. The catchment is a mix of urban and rural areas and has a population of circa 67,000. The sewerage network is primarily a combined network with Wallbridge Combined Sewer Overflow (CSO) being a key asset close to […]

Ravenhill Avenue, Belfast, Flood Alleviation Project (2022)

Ravenhill Avenue is located in south Belfast, close to the city centre. It is a densely populated residential area which has seen recent development of historically industrial sites. The sewer infrastructure in Ravenhill Avenue dates back to the early 20th century, and is therefore in poor condition and undersized to deal with today’s flows. Unfortunately, […]

West Huntspill WRC Bathing Waters Improvements (2021)

West Huntspill Water Recycling Centre (WRC) is a Wessex Water facility situated south of Highbridge in West Somerset. This environmentally sensitive site is within a National Nature Reserve and adjacent to a Site of Special Scientific Interest and a Special Protection Area (Bridgewater Bay and the Severn Estuary). The facility serves a catchment of 62,000 […]

Lowdham, Gunthorpe Road, Flood Alleviation (2021)

Lowdham is a village in Nottinghamshire that had a history of external and internal sewer flooding to properties, caused by hydraulic incapacity of the combined sewer network. A new 1400m3 offline storage tank was required along with catchment resilience work, which included working in partnership with the local authority to resolve surface water flooding, by […]

BRP - Elan Valley Aqueduct - Birmingham Resilience Project (2020)

Between 1893 and 1904 the Birmingham Corporation dammed the Elan Valley in Wales and constructed an aqueduct to channel water to Birmingham. At the height of the industrial revolution, between 1800 and 1900 Birmingham was booming, and its population rose substantially. Following outbreaks of smallpox and diarrhea, city officials deemed it essential to provide its […]

BRP - Treated Water Project - Birmingham Resilience Project (2019)

Since the beginning of the 20th century, raw water has been conveyed 118km from the Elan Valley in Wales, under gravity by aqueduct, to the water treatment works (WTW) in Birmingham for treatment and supply to the population of the city. The aqueduct has been in continuous service for over 100 years and requires some […]

Gulson Road (Coventry) Sewer Diversion (2019)

As part of the ongoing growth of Coventry University, an existing builder’s merchant yard situated off Gulson Road provided a developer with the ideal city centre plot to construct an extensive eight-storey student accommodation building. The brownfield site redevelopment required an existing Severn Trent owned trunk sewer to be diverted prior to the construction work […]

Ayrshire Resilience Scheme: Phase 2 Highlees (2018)

During investment period 2016/17, Scottish Water commenced the first phase of construction on a £120m investment project known as the Ayrshire Resilience Scheme, designed to improve the resilience of the drinking water network throughout much of Ayrshire and parts of East Renfrewshire. Once complete, this scheme will benefit more than 200,000 Scottish Water customers. Caledonia […]

Hagley (Newfield Road) Flood Alleviation (2018)

The small town of Hagley, Worcestershire is served by an ageing sewer network which drains the wastewater of the 6,000 inhabitants towards the large Milestone Drive Sewage Pumping Station. Following decades of growth, misconnections and increased urbanisation within the existing catchment, hydraulic pinch points on the foul sewer network subjected numerous clusters of low-lying properties […]

Pebworth-Long Marston-Stratford upon Avon Transfer (2018)

Long Marston Sewage Treatment Works (STW) is located approximately 4 miles south of Stratford-upon-Avon in Warwickshire and until recently was treating wastewater from a population of 2,500 in Long Marston and Quinton. Significant development in the catchment will see the population served rise to approximately 15,000 over the next 20 years. The former Ministry of […]

Tideway Central - Overview (2018)

Thames Tideway Tunnel is the largest water infrastructure project currently under construction in the UK and will modernise London’s major sewerage system, the backbone of which dates back to Victorian times. Although the sewers built in the mid-19th century are still in excellent structural condition, their hydraulic capacity was designed by Sir Joseph Bazalgette for […]

Cowley Trunk Main Project (2017)

Following a burst on the existing 24” trunk main running along the Oxford Eastern Bypass in September 2014 causing severe flooding, Thames Water made the decision to replace the high risk section of the main to prevent future pipe failures. The Optimise Joint Venture delivered the £6m project, installing 2km of replacement trunk main along […]

Irvine Bypass Trunk Main (2017)

An existing, but ageing, 33”-36” diameter potable water main supplying over 40,000 customers in Ayrshire was identified by Scottish Water as requiring replacement. The existing pipeline was to be replaced with a new pipeline constructed of polyethylene (PE) pipe sections butt-fusion welded into 200m long pipe strings. Caledonia Water Alliance (CWA), a joint venture between […]

Gloves Lane (Blackwell) Terminal Pumping Station (2016)

Blackwell is a large village in the northeast of Derbyshire, close to the town of Alfreton, with a population of approximately 3,000 people. Within the village, at the bottom of the narrow Gloves Lane, Severn Trent Water’s terminal sewage pumping station (TPS) receives significant incoming flow from not only the village itself but also the […]

Hassocks Lane (Beeston) Sewer Requisition (2016)

Bellway Homes Ltd submitted an application for foul and stormwater sewers requisition under Section 98 of The Water Industry Act 1991 for a new housing development in Beeston, Nottingham. With no pre-existing drainage on the site it was necessary for the drainage from the 128 new properties to extend across 3rd party land and into […]

Mayflower WTW (2016)

South West Water (SWW) has started construction on a new £60m state-of-the-art water treatment works in Devon, the company’s flagship project in its 2015-2020 business plan. Mayflower WTW will use cutting-edge treatment processes, designed and developed by leading Dutch water technology company PWNT and will serve around 250,000 customers in Plymouth and the surrounding area. […]

South East Coalville Growth Scheme (2016)

North West Leicestershire District Council’s long term housing proposals include an allocation of 3,200 dwellings to the south east of Coalville. Without sewer capacity improvements the additional flows will increase flood risk and combined sewer overflow (CSO) spills and so proactive capacity improvements are required to meet Severn Trent Water’s AMP6 outcomes to ‘safely take […]

What we do:

Contractors: Civils | Shaft Sinking | Tier 1 | Tunnelling

Designers: Shaft Design | Tunnel Design

Flood Alleviation: Attenuation Tanks | Contractors | Civil Engineering

Sewerage: Contractors | Auger Boring | Micro-tunnelling | Pipe Jacking | Tier 1 Contractors | Tunnelling | Tunnelling | Shafts | Shaft Design | Shaft Sinking | Tunnel Boring Machines | Tunnel Design | Tunnelling Contractors

Stormwater Storage: Contractors | Tier 1 Contractors | Storage Shafts | Shaft Design | Shaft Sinking | Storage Tunnels | Tunnel Design | Tunnelling Contractors

Wastewater Pumping Stations: Contractors | Civil Engineering | Shafts | Shaft Design | Shaft Sinking

Water Mains: Contractors | Auger Boring | Micro-Tunnelling | Pipe Jacking | Tier 1 Contractors | Tunnelling | Shafts | Shaft Design | Shaft Sinking | Tunnels | Tunnel Boring Machines | Tunnel Design | Tunnelling Contractors