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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.

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 TerraLine carrier drain UTX, four in-line GRP TerraPits and three 90° Terrapits, one 90° narrow TerraPit and one narrow TerraPit in-line. 

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 car park out towards York, then cross drain to pick up the isolated 6ft drainage between the signal post and truck counter. 

Drainage run No.2:  A 6ft drain from the end of Platform 2 running away towards York to an outfall beyond the old signal box. 

Network Rail identified the requirement for a major upgrade of the railway between Hastings and Ashford. A 9-week blockade centred on essential maintenance works in the Ore Tunnel, the refurbishment to include water-proofing, strengthening and track alignment, complete with 864m of track drainage.

Network Rail identified the need for a major upgrade of the railway to support goods’ movement from the docks through North London out to the regions. It covered three miles of track enhancement through the east & west catchment areas of the London Overground Railway Network between South Acton to Barking. 

As part of this upgrade 3066m of track drainage very shallow installations in the 6ft, 10ft & cess & Thames sewer works were required through this challenging area. All to be installed within the 18 month blockade. 

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