| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Welland Canal - Increasing lock size |  |  |  |  |
| 3 | Canal | First (1829) | Second (1846) | Third (1887) | Fourth (1932) |
| 4 | Locks | 40 | 27 | 26 | 8 |
| 5 | Width (metres) | 6.7 | 8.1 | 13.7 | 24.4 |
| 6 | Length (metres) | 33.5 | 45.7 | 82.3 | 261.8 |
| 7 | Depth (metres) | 2.4 | 2.7 | 4.3 | 8.2 |

Question: Which version of the Welland Canal has the most locks and which version has the largest locks?
Answer: The First Welland Canal has the most total locks with 40, the Fourth Welland Canal has the largest locks measuring 24.4 meters wide, 261.8 meters long, and 8.2 meters deep.