The river Avon joins the river Severn at Tewkesbury and is navigable upstream for 45.4 miles (73.1 km) to Alveston Weir. The Stratford-upon-Avon Canal joins the river Avon at Bancroft Gardens in Stratford-upon-Avon. There are 17 locks. There are proposals to extend navigation further upstream towards Warwick, and with a connection to the Grand Union Canal.
The maximum size of boat that navigate throughout the Navigation is
length: 70' (21.3 metres)
beam: 12' 6" (3.8 metres)
height: 10' (3.0 metres)
draught: 4' 0" (1.2 metres) - reduces to 3' 0" or less towards Alveston Weir