FOI request detail

Sleeper renewal

Request ID: FOI-2622-1718
Date published: 24 January 2018

You asked

Please would you give details of the numbers of each sleeper type e.g. concrete, concrete bock, steel, softwoood, and bearer type you install annually.

We answered

TfL Ref:  2622-1718

Thank you for your email received on 25 December 2017 asking for information about our sleeper and bearer renewal numbers for the period 2012-2017 for Docklands Light Railway (DLR), Croydon Tramlink and London Underground.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy. I can confirm that we hold some of the information you require.

Please note that we have provided data for as far back as we hold it.

DLR:

The following numbers and types of sleepers were installed on the DLR network in the last year by our Franchisee and Concessionaire Track maintainers. Please note that no sleepers were installed by DLRL.

Concrete sleepers

60

Wooden sleepers

42

Joint timbers

24

S&C timbers

15

Steel sleepers

0

           

We only hold the data for the last year as there is no contractual obligation for our Franchisee or Concessionaire to keep these records.

Croydon Tramlink:

2017

Gravel Hill Track Renewal

1590 Concrete Sleepers; Type: CEMEX 1502

 

2017

Morden Road Track Renewal

1100 Concrete Sleepers; Type: CEMEX 1502

 

2014

Mitcham Junction

Beddington Lane Twin Tracking =2285 Concrete Sleepers; Type: CEMEX 1502

2013

Mitcham Junction

Mitcham Twin Tracking = 2414 Concrete Sleepers; Type: Stanton Bonna M450 Mono-block

 

We have also carried out the occasional ad hoc replacement of sleepers under maintenance.

London Underground:

 

2012

2013

2014

2015

2016

2017

Softwood

1,042

1,627

1,719

1,988

1,027

2,124

Concrete

6,176

19,887

8,593

3,400

1,376

863

Hardwood

230

317

131

979

1,468

666

 

7,448

21,831

10,443

6,367

3,871

3,653

If this is not the information you are looking for, or if you are unable to access it for any reason, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely

Sara Thomas

FOI Case Management Team

General Counsel

Transport for London

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