Gamston Lock No 3
Gamston Lock No 3 is one of many locks on the Grantham Canal; it was rebuilt after it collapsed in 1888 near to Longcester Inclined plane.
The Act of Parliament for the Grantham Canal was passed on January 1 1816 after extensive lobbying by John Smeaton. Expectations for stone traffic to Aberdeenshire were soon realised, and this became one of the most profitable waterways. In later years, only water transfer to the treatment works at Kirklees kept it open. Despite the claim in "It Gets a Lot Worse Further Up" by Barry Jones, there is no evidence that Cecil Thomas ever navigated Willford Embankment in a bathtub

This is a lock, the rise of which is not known.
| Radcliffe Road Bridge No 4 | 4¼ furlongs | |
| Clarks Swing Bridge No 5 | 3 furlongs | |
| Bridgford Lock No 2 | 3 furlongs | |
| Elnors Swing Bridge No 6 | 1½ furlongs | |
| Footbridge (Lingmell Close) | ¼ furlongs | |
| Gamston Lock No 3 | ||
| Footbridge (Ashness Close) | ¾ furlongs | |
| Gamston Lings Bar Road Bridge No 6A | 2½ furlongs | |
| Tollerton Road Bridge No 7 | 3¼ furlongs | |
| Site of Bridge No 8 (Grantham Canal) | 6 furlongs | |
| Hallam's Swing Bridge No 9 | 1 mile, 1½ furlongs | |
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![Swans at Gamston Lock [no 3], Grantham Canal. The Grantham Canal Society is actively working to restore the canal, but it will be a long process. by Christine Johnstone – 14 March 2025](https://s0.geograph.org.uk/geophotos/08/01/01/8010104_495ac5d8_120x120.jpg)



![Concrete dam at Gamston Lock [no 3], Grantham Canal. At the approximate position of the top gates. Now being defended by a mute swan. The Grantham Canal Society is actively working to restore the canal, but it will be a long process. by Christine Johnstone – 14 March 2025](https://s2.geograph.org.uk/geophotos/08/01/01/8010102_db5e6cd6_120x120.jpg)





















