Navigation Limits and Levels

The Lower and Upper Avon is navigable over 46 miles (74km), with 17 locks along it's course, from Tewkesbury to Alveston weir above Stratford-upon-Avon. The Higher Avon is a planned extension of the Navigation to link-up with the Grand Union Canal. More information on this project can be obtained from the Stratford and Warwick Waterways Trust.

Map of the Lower Avon from Tewkesbury to Evesham.

Map of the Upper Avon from Evesham to above Stratford-upon-Avon.

Map of the Higher Avon from Stratford to Warwick & Leamington Spa.

The River Avon, has junctions with the Stratford Canal at the top of the navigation, and the River Severn at the bottom, and forms part of a navigable 'ring' that includes the Worcester and Birmingham Canal. For more information, see Links.

Maximum Recommended Craft Dimensions

Stated maximum draught is for vessels with protected sterngear. Note that minimum headroom is at normal river levels, and can be lower during periods following heavy rain.

River Levels and Gauges

Unlike a canal, the water in a river is continually flowing, and it's rate of flow and level varies. After heavy rain in the catchment area, levels can rise, and/or the rate of flow increase to a point where navigation can be hazardous.

The Trust has installed water level gauges at every lock designed to indicate the water level in each stretch of the river and help you gauge whether it is safe to proceed. Check the water level against the colours on the gauge, and compare it with the advice on the sign.

RED         Danger - stop and moor your boat.

ORANGE   Increased current, proceed with caution.

GREEN     Normal navigable level.

Navigation Warning Sign

In addition to the River Level Gauges, at times of high flow, the Navigation Warning Signs will be changed from green to red. You are then advised to stop and moor your boat until the signs have been changed again. These signs are located at lock 56 on the Stratford Canal where it joins the river Avon.