Map of G.W. Signalboxeshttp://www.svrsig.org/gwmap/GWMap.htm
 |  |  |  |  |  |  |  |  |  |
 |  |  |  |  |  |  |  | |  |
 |  |  |  |  |  |  |  | |  |
 |  |  |  |  |  |  |  | |  |
 |  |  |  |  |  |  |  | |  |
| | | | | | | | | |
| Sxxxx number | Signal Box name | View on map square | Other information including SRS diagram number |
| S 639 | Avonmouth Dock Sidings | Map AN129 ST518777 | SRS diagram D3 also P305 (1913) |
| S 638 | Avonmouth Dock Junction | Map AN129 ST521772 | SRS diagram D3 also P305 (1876, 1910) |
| S 640 | Avonmouth Dock Passenger | Map AN129 ST516781 | SRS diagram S205 |
| S 626 | Avonmouth Goods Yard | Map AN130 ST517792 | SRS diagram P111 also S945 (1910) |
| S 628 | Gloucester Road Crossing | Map AN129 ST514781 | SRS diagram L181 (1927) |
| S 624 | Hallen Marsh Junction | Map AN130 ST522808 | SRS diagram D152 |
| S 625 | Holesmouth Junction | Map AN130 ST521806 | SRS diagram D152 |
| S 645 | Pill | Map AO127 ST523761 | SRS diagram D62 |
| S 649 | Portishead | Map AI127 ST470768 | SRS diagram P192 (1953, 1958) |
| S 647 | Shipyard Sidings | Map AM127 ST507760 | SRS diagram D62 |
| S 627 | St. Andrew's Junction | Map AN130 ST514786 | SRS diagram P111 |
| Prices are shown here. | |||