This is an HTML version of an attachment to the Freedom of Information request 'What is the load bearing capacity of the Arnside Viaduct'.

Marianne Birkby 
Network Rail  
Freedom of Information 
By email: 
The Quadrant  
Elder Gate 
Milton Keynes  
MK9 1EN 
30 March 2022 
Dear Marianne Birkby 
Information request   
Reference number: FOI2022/00276  
Thank you for your email of 1 March 2022 in which you requested the following 
‘What is the load bearing capacity of the Arnside Viaduct in 
I have processed your request under the terms of the Freedom of Information Act 2000 
(FOIA). I have consulted with my colleagues and can confirm that we hold the information 
you have requested. However, under section 21(1) of the FOIA, we are not required to 
provide information in response to a request if it is reasonably accessible to an applicant 
by other means.  
This information is published online on our webpage via the The National Sectional 
Appendix using the following weblink: London North Western (North) Sectional Appendix 
According to the sectional appendix the viaduct can accommodate RA8 vehicles at line 
speed of 60mph. RA9/10 vehicles have a restriction in place of 20mph over the viaduct. 
Please find the extract from the sectional appendix for the Arnside viaduct and the D5A 
Route Clearance table listed below: 
Network Rail Infrastructure Limited Registered Office: Network Rail, One Eversholt Street, London, NW1 2DN Registered in England and Wales No. 2904587 

Network Rail Infrastructure Limited Registered Office: Network Rail, 2nd Floor, One Eversholt Street, London, NW1 2DN Registered in England and Wales No. 2904587 

You can also find further information about the route availability (RA) system at the 
following link: 
Network Rail Infrastructure Limited Registered Office: Network Rail, 2nd Floor, One Eversholt Street, London, NW1 2DN Registered in England and Wales No. 2904587 

I hope this is helpful. If you have any enquiries about this response, please contact me in 
the first instance at xxx@xxxxxxxxxxx.xx.xx. Details of your appeal rights are below. 
Please remember to quote the reference number at the top of this letter in all future 
Yours sincerely 
Elliot Palk  

Information Officer 
You are encouraged to use and re-use the information made available in this response 
freely and flexibly, with only a few conditions. These are set out in the Open Government 
Licence for public sector information. For further information please visit our website 
Appeal rights 
If you are unhappy with the way your request has been handled and wish to make a 
complaint or request a review of our decision, please write to the Head of Freedom of 
Information at Network Rail, Freedom of Information, The Quadrant, Elder Gate, Milton 
Keynes, MK9 1EN, or by email at xxxxxxxxxxxxxxxxxxxxxxx@xxxxxxxxxxx.xx.xx. Your 
request must be submitted within 40 working days of receipt of this letter.   
If you are not content with the outcome of the internal review, you have the right to apply 
directly to the Information Commissioner for a decision. The Information Commissioner 
(ICO) can be contacted at Information Commissioner's Office, Wycliffe House, Water 
Lane, Wilmslow, Cheshire, SK9 5AF or you can contact the ICO through the 'Make a 
Complaint' section of their website on this link: 
The relevant section to select will be "Official or Public Information".  

Network Rail Infrastructure Limited Registered Office: Network Rail, 2nd Floor, One Eversholt Street, London, NW1 2DN Registered in England and Wales No. 2904587