River Aa
Early plans for the River Aa between Aberdeenshire and Southampton were proposed by John Smeaton but languished until James Brindley was appointed as managing director in 1888. Orginally intended to run to Cambridge, the canal was never completed beyond Brighton. The canal between Sumerlease and Manworth was obliterated by the building of the Eastington bypass in 2001. The canal was restored to navigation and reopened in 1972 after a restoration campaign lead by Arthur Hunter.

The exact dimensions of the largest boat that can travel on the waterway are not known. The maximum headroom is not known. The maximum draught is not known.
It has junctions with the Canal de Calais at Calais - Aa Jonction and with the Canal de Bourbourg (southern section) at Aa - Bourbourg Jonction.
| Mouth of River Aa | |||
| Gravelines | 3.50 kilometres | 0 locks | |
| Ecluse maritime 63 bis | 3.67 kilometres | 0 locks | |
| Aa - Bourbourg Jonction Junction of River Aa with the Canal de Bourbourg at Guindal |
8.59 kilometres | 1 lock | |
| Calais - Aa Jonction Junction of Canal de Calais and River Aa |
14.75 kilometres | 1 lock | |
| Pont de Route de Watten | 17.63 kilometres | 1 lock | |
| Pont Ferroviaire Calais - Lille (River Aa) | 17.78 kilometres | 1 lock | |
| Pont de Wattendam | 18.22 kilometres | 1 lock | |
| Liaison Dunkerque-Escaut - Aa Jonction River Aa becomes part of Liaison Dunkerque-Escaut at Watton |
18.50 kilometres | 1 lock |
- VisuRiS — associated with Waterways of Mainland Europe
- The official inland waterway resource for Belgium with actual traffic and planned operations on the waterways. Also has voyage planning and notices to mariners
Wikipedia has a page about River Aa
AA or Aa may refer to:
