An increase in routes and passenger numbers meant that Manchester Airport Group Plc (MAG) required a new shuttle bus route and 9,000 extra car parking spaces at the already popular Manchester Airport.
Working closely with the proejct's chosen contractors, Polypipe was tasked with engineering a surface water drainage system to minimise disruption to travellers, enabling the facilities to remain operational in the event of a storm.
IT WAS IMPOSSIBLE TO USE TOWER CRANES DURING WORKS
As the car park's location was directly in the flight path of the airport's main runway. As such, a lighter weight drainage solution was required in order to minimise the use of lifting equipment on-site.
The Polypipe team set to work creating an intelligently engineered drainage system utilising pipework from 150-1200mm in diameter which incorporated Ridgistorm-XL large diameter pipe and the popular Ridgidrain and Ridgigully products. The system allows surface water from the new car park's surface to be captured and carried through a number of drainage runs and pre-fabricated chambers before entering the existing sewer run on the main link road between the car parks.
Polypipe manufactured and supplied more than 100 Ridgistorm-XL modularised chambers for the project, in diameters ranging from 900mm-2,700mm. Alongside this, Polypipe designed a number of RIDGISTORM Seperate Catchpits, RIDGISTORM Check Orifice Plate Row Control Chambers and RIDGISTORM Control Chambers with flow control valves and penstocks, to restrict the flow of water downstream to avoid overwhelming the sewer system. In particular, was a flap valve within a 1500mm RIDGISTORM Control Chamber to prevent water returing after being dispelled.