| Technical drawing numbers | |
| S577/1 | Amendment state |
| S577/2 | Locking sketch |
| S577/3 | Mechanical locking table |
| S577/4 | Detection table |
| S577/5 | Electrical control table |
| S577/6 | Dog chart |
| S577/7 | Lever leads |
| S577/12 | Signal box diagram |
| ‹‹UP Click below to move to adjacent box DOWN›› | ||
| Twerton Tunnel | —— This box —— | Keynsham & Somerdale East |
The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file will be published on CD-ROM (GW Section B, update CD). The update CD contains a redrawn or amended diagram. For availability and ordering information, click on the image below.
This page last updated on 8th February 2010.