Stobart Developments

Background to specification

Tubosider UK was chosen by Buckingham Group Contracting to provide the stormwater drainage and discharge tank systems for the contract it has won at London Southend Airport. The contract is for the design and build of the Airport’s the new passenger terminal building, aircraft apron and airside road access.

The new 4500 m² state-of-the-art Terminal Building, accommodating 5 new aircraft stands, is part of the London Southend Airport Regeneration Project. It is designed to provide passengers with a ‘hassle free’ experience, transforming the Airport into a modern and thriving regional hub.

Tubosider has supplied several attenuation systems to commercial and military airfields in the UK and Ireland in recent years, and has worked with Buckingham Group Contracting on other projects such as The American Express Community Stadium for Brighton & Hove Albion at Falmer.

Key criteria

The drainage and discharge tank scheme underwent several stages of development before being finalised, explains Buckingham Group Contracting’s design manager Robin Mitchell. “We had an original scheme planned and priced against which Tubosider had to successfully pitch their proposals. But their project team put in a lot of effort.

“They have been a good partner, showing due respect for our plan but then saving the project a good degree of cost once we then asked them to submit their own solution. They have been on top of everything, from health and safety to last minute changes, attending site and seeing every tank and accessory was properly installed and operational.”

Solution and benefits

The complete system included two Twinstore attenuation tanks (one of 1048 m³ in 1800mm diameter pipe and one of 430 m³ in 1400 diameter), a pollutant tank, and aircraft foulwater discharge and separator package pump stations. The Twinstore system’s lightweight steel construction and need for just a lined bed of granular fill also greatly helped groundworks contractors Graffic Limited. Besides overcoming the difficulties associated with a high water table, installation had to take place under a new concrete apron area providing standing space for aircraft. Working for the Airport’s owners the Stobart Group in partnership with designers RPS, Buckingham Group Contracting expect to finish the construction phase of the works in under 12 months. This will develop and enhance London Southend Airport in advance of the 2012 Olympic Games and give ready access to the Games’ sites.