Transport – Rail, Highways and Air

Rail and transport infrastructure drainage services and management

At UKDN Waterflow, we’ve made it our business to deliver sewerage and water infrastructure solutions in ways which minimise disruption to services affecting rail and public transport.

By constantly sourcing and trialling new technologies and innovative methods, we ensure that we have the most productive, efficient and effective ways of managing rail drainage and transport infrastructure projects — even highly regulated and time-sensitive ones. It’s how we provide the best results for our clients whilst reducing downtime and disruption for transport users.

Our transport drainage sector specialists work on:

  • Rail
  • Underground
  • Roads
  • Motorways
  • Highways
  • Tram systems
  • Airports
  • Individual engineering projects

Qualifications and accreditations for rail and transport drainage services

We hold relevant qualifications, where applicable, in each transport sector. As a long established rail drainage contractor, for instance, this includes RISQS accreditation and Audit. We are especially proud to have been awarded the coveted Network Rail Principal Contractor Licence (PCL) after 15 years as a tier one operator — a measure of our reputation and capability in rail drainage repairs.

Alongside official certification, we have long been acknowledged for knowledgeable and capable managers. A structure with strong field and project management ensures that tasks are kept on track and on budget, every time.

For road projects, we comply fully with Highways Agency Drainage Data Management System (HADDMS) for surveying.

Award-winning standards

We work to the most stringent health and safety and regulatory codes and have awards to prove it. Exceptional operating standards mean we regularly deliver additional benefits and cost efficiencies above and beyond our clients’ main objectives. This approach, along with our ‘Project Server’ system, means we monitor work activity, keep cost and resource targets to plan, and reach, or exceed, the highest quality standards.

Why choose UKDN Waterflow for rail and transport drainage services?

Choosing UKDN Waterflow to manage your drain and sewer infrastructure makes sense. When it comes to keeping systems running, we are past, present and future-masters of:

  • CCTV survey and inspection
  • Unblocking and cleaning
  • Management and maintenance
  • Renovation and repair of drains and sewers
  • Major and minor civil engineering works
  • Drainage asset mapping and data management
  • Non-drainage infrastructure works

Extra services for the rail and transport sector

Water and wastewater infrastructure work on a network is often part of a bigger asset maintenance programme. With that in mind, we offer related services such as:

  • Piling
  • Steel and concrete work
  • Stabilisation of earthworks and embankments (including vegetation clearance and tree surgery)
  • Drainage replacement and renovation

Reactive and planned works

Experienced managers and ops teams deliver a mix of reactive and planned works, reactive only, or one off projects, always to optimum safety levels and always on time. Transparent pricing shows clearly the value for money service we provide.

Rail drainage case study

Network Rail wanted to renew over 250 m of track drainage at Midgham Station. They commissioned us to carry out a CCTV camera drainage survey and submit a plan for a technical solution.

The key objective was to complete the work with minimal disruption to both rail passengers and road users as the drain ran beneath a level crossing. The crossing also provided the only access between the platforms.

Our CCTV track drainage survey showed that the pipe was intact under the level crossing, but collapsed five metres from it. It also showed the existing drainage falls were not self-cleansing and some twin-wall pipes were partially or completely collapsed.

The conventional method for renewing the track drainage would have involved digging up the current drainage pipework and installing new pipework. However, there were a number of buried services through the level crossing. These included foul and storm water sewers, a water main, telecommunication cabling, two electricity mains and control cables associated with the level crossing.

The presence of these services would have made excavation complex and time consuming. Trench digging by hand, re-bedding, replacement of the crossing surface and resurfacing of the road would have been needed, all under road closure and traffic management.

The solution

We recommended a no-dig solution that would not need a road closure and would cause less disruption for rail passengers. This was to retain and line the existing pipework with an ultra violet cure in place pipeline (CIPP) lining.

This method requires less equipment, less site set-up space, and less time to complete than conventional hot CIPP lining.


The lining successfully reshaped the pipe and strengthened it, greatly reducing the risk of further collapses over the 70-year lifetime of the pipe renovation. The pipe was left as a carrier drain. However, at our suggestion, it was also turned into a water collector feed. This was achieved by sending a robot cutter along the length of the pipe to create drainage slots.

The track renewal as a complete success. It was achieved with no road closures and minimal disruption to road and rail users. Other advantages over conventional trackside drainage renewal were:

  • No road closure
  • Very little waste produced
  • Minimal noise pollution
  • 10% less emissions
  • Less risk of track being affected
  • 70-year design life
  • Could be done using short no booked service (NBS) possessions

Find out more about rail drainage services and how we can help

Contact us on 0333 344 2937 to talk about our drainage services in the rail and transport sector, or complete the contact form on the right.