SCRCA Location Type: Tunnel Mouth

Location Type Code

Every tunnel within the SCRCA has a masonry-built portal or 'Tunnel Mouth' at each end. These structures form the entrances to / exits from the tunnel and they are designed to prevent landslips and rockfalls that could foul the running-lines (railway tracks) and cause an accident. Some 'Tunnel Mouth' structures include drainage channels to divert surface water away from the railway lines, thereby reducing the risk of flooding. Examples of the latter include Blea Moor Tunnel North Portal and Shotlock Tunnel South Portal.

For more information, please refer to the related article "What are railway tunnels and why are they necessary?".


The following examples from the SCRCA Project database illustrate this location type. Locations are only displayed here if they have been 'assessed' and if a default image is available.   Show / hide tips

  • The locations are grouped by 'variant' (where appropriate), then sorted by Location ID.
  • To view the full Location Summary for one of the sites or structures, click on the relevant location name / description.
  • To view a larger version of one or more of the images in a slideshow format, click on one of the thumbnail images.
    NB: The slideshow will NOT run on devices with a screen width of less than 400px, or if you attempt to open it in a new window.
  • To view details of ALL the locations of this type in the database (regardless of their status etc.), use the Gazetteer.

Errors and omissions
Reasonable efforts are being made to ensure the accuracy of the information obtained and uploaded as part of the SCRCA Project. However, it is possible that a few errors will have crept-in. If you notice any such errors, we would be grateful if you would bring them to our attention using the SCRCA Project Contact Form. The Friends of the Settle-Carlisle Line and the members of the SCRCA Project Team do NOT guarantee the accuracy of the information contained in this database. If you intend to use and / or act upon any of this information, you are advised to verify its accuracy BEFORE doing so.

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