+44 (0)1359 271167
Back to case studies

TerraDrain installed at Bletchingley

10 March 2020

Demco’s specialist track drainage pipe TerraDrain 11 has been installed as part of upgrade works at Bletchingley Tunnel in Surrey.

TerraDrain was used because it is approved for installation at shallow depths for high load track bed drainage. Designed to be installed as shallow as 300mm below sleeper, this heavy-duty HDPE pipe with its unique O-Ring push-fit joint system ensures rapid installation.

More than 300m of 315mm diameter TerraDrain 11 was installed in the 6ft in the Bletchingley Tunnel project last week, proving again it is the correct choice for track drainage.

Download PDF

More case studies

Carstairs Rail Project, Glasgow

3 June 2020

MGS has supplied a Pagani TG63-150 for use in a large-scale infrastructure SI project near Glasgow to investigate a railway embankment up to 10m in height which had instability issues.

read more

Southampton Station

4 July 2019

The modelling of the S&C at Southampton Station to incorporate a new track layout and drainage system. The project required 200m of 6ft TerraDrain collector drainage together with 12m of

read more

Scarborough Station

4 July 2019

The project involved refurbishment of Scarborough Station, track layout and the track drainage system. Work included Drainage run No.1: Cess drainage through Platform 5 from the outfall under the bus station

read more

REGISTERED OFFICE: Geotechnical Centre, Rougham Industrial Estate, Rougham, Bury St Edmunds, Suffolk IP30 9ND. Registered in England: 2481929