Dear Transport for London, Our office is taking part in the ‘Open Call for Design Ideas’ to create an iconic gateway at Old St. Can you supply me with base plans which include the exact location and depths of all the tube lines directly below Old Street to help us with our ideas proposal?

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TfL Ref: 2812-1718

Thank you for your request received by Transport for London (TfL) on 4 January 2018 asking for information on depth of tube lines underneath Old Street roundabout.

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 the information you require.

Please find attached three archive drawings which show the information you have requested, and also include information about other below ground obstructions – a main sewer and foundations for a never constructed flyover.  

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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