River closures, restrictions and lock closures affecting boaters on the River Thames.
Find out the latest river conditions and strong stream warnings by:
- visiting our River Thames Conditions website
- calling our Floodline on 0345 988 1188 (24-hour service) to hear recorded information and advice (find out about call charges)
- talking to lock staff
River closures: updated 13 June 2018
|From 8am on Thursday 14 June 2018 to 12pm on Sunday 17 June 2018||Forbury Loop, River Kennet||Reading Water Fest. The Forbury Loop on the River Kennet in Reading will be closed to all boats other than those participating in the Reading Water Fest.|
River restrictions: updated 13 June 2018
|From Wednesday 21 March 2018 until further notice||Walton towpath 24 hour moorings||Mooring suspension: the 24 hour moorings at Walton towpath will be closed until further notice due to a suspected gas leak.|
|From 6am on Monday 11 June 2018 to 6am on Wednesday 4 July 2018||Henley Reach||Henley Royal Regatta practice and Henley Women’s Regatta: the navigation channel for river traffic will be on the Buckinghamshire, Fawley Court side of the river.|
|Wednesday 13 June 2018 from 10am to 4pm||Marlow Reach||Rivertime Accessible Regatta: the navigation channel will be established on the north, right side of the river.|
|Saturday 16 June 2018 from 10am to 4pm||Teddington reach||London River Yacht Club and Weybridge Mariners Yacht Club boat handling competition: the navigation channel will be established on the Hampton Court, right hand side of Raven’s Ait.|
|Saturday 16 June 2018 from 9am to 5pm and Sunday 17 June 2018 from 9:30am to 2:30pm||Marlow Reach||Marlow Town Regatta: the navigation channel will be established on the Berkshire, left side of the river.|
|Saturday 16 June 2018 and Sunday 17 June 2018 from 9am to 6pm||Sunbury Reach||Sunbury and Walton Sea Cadets Regatta: the navigation channel will be established on the Walton-on-Thames, left side of the river.|
|Saturday 16 June 2018 and Sunday 17 June 2018 from 9am to 7pm||Caversham reach||Reading Amateur Regatta: the navigation channel will be established on the right or north, non-towpath side of the river.|
|Sunday 17 June 2018 from 6am to 9:45am||Romney Reach||Royal Windsor Triathlon: swimmers will leave a clear navigation channel for boat traffic along the centre of the river.|
|Sunday 17 June 2018 from 7:30am to 8:30am||Marsh Reach||Wargrave Sprint Triathlon: The navigation channel will be established on the Oxfordshire, Shiplake side of the river.|
|Sunday 17 June 2018 from 7:30am to 11am||Kings reach||Oxford swim: swimmers will hug the true left hand bank (their right hand bank) of the river as they head downstream and will leave a clear navigation channel for boat traffic along the centre of the river.|
|Sunday 24 June 2018 from 6:30am to 8:30am||Marlow Reach||Marlow sprint and Olympic distance triathlon: The navigation channel will be established on the Bisham, left side of the river.|
|Sunday 1 July 2018 from 4am to 7am||Henley reach||Henley classic swim: the navigation channel for river traffic will be on the Buckinghamshire, Fawley Court, right side of the regatta course.|
|From 6am Wednesday 4 July to half an hour after prize giving on Sunday 8 July 2018||Henley reach||Henley Royal Regatta: all boats must navigate in accordance with instructions given from Environment Agency control points or patrol launches.|
|Monday 9 July 2018 to Sunday 15 July 2018||Henley reach||Henley Music Festival, Henley Masters Regatta and the Henley Mile swim All boats travelling downstream must be navigated within the regatta course and all boats travelling upstream must be navigated on the Bucks/Fawley side of the regatta course. Except from 7am on Friday 13 July to 6pm on Saturday 14 July and 8am to 4:30pm on Sunday 15 July when the navigation channel for all river traffic will be on the Bucks/Fawley side of the regatta course.|
|Saturday 14 July 2018 and Sunday 15 July 2018 from 8:30am to 7pm||Teddington Reach||Kingston Amateur Regatta: The navigation channel will be established on the Surrey, left hand side of the river.|
|Saturday 14 July 2018 from 9am to 5pm||Sunbury Reach||Thames Valley Skiff Club Regatta: the navigation channel will be on the Middlesex, right-hand side of the river.|
|Sunday 15 July from 8am to 4:30pm||Henley reach||Henley mile swim: the navigation channel for river traffic will be on the Buckinghamshire, Fawley Court, right side of the regatta course.|
|Monday 16 July 2018 to Friday 27 July 2018||Henley reach||Deconstruction of the Henley Royal Regatta course: All boats travelling downstream must navigate within the regatta course booms from the regatta finish to the barrier. All boats travelling upstream must navigate on the right or Buckinghamshire/Fawley side of the regatta course. From Friday 20 July 2018 to Sunday 22 July 2018 the navigation channel for boats travelling both up and downstream will be along the regatta course on the left or Berks/Remenham side of the river.|
|Saturday 21 July 2018 from 6:45pm to 9pm||Henley reach||Club to pub swim: the navigation channel will be established on the Wargrave Road, left side of Bird Island and Rod Eyot.|
|Saturday 21 July 2018 from 9am to 3:30pm||Teddington reach||Hampton Court and Dittions regatta: the navigation channel will be established on the Hampton Court, right/north side of the river.|
|Saturday 21 July 2018 to Sunday 22 July 2018||Molesey reach||Molesey Amateur regatta: the navigation channel will be established on the right, north/non-towpath side of the river.|
|Saturday 22 July 2018 from 0930am to 4:30pm||Teddington Reach||Kingston Rotary Club dragon boat event: the navigation channel will be established on the Middlesex bank, right hand side of the river.|
|Sunday 29 July 2018 from 6:30am to 8:15am||Marlow Reach||Marlow river swim and Marlow half iron distance triathlon: the navigation channel shall be established on the left, Bisham side of the river.|
|Friday 3 August 2018 from 8:30am to 4:30pm||Sunbury Reach||Weybridge Community Regatta: the navigation channel will be established on the old river channel at Shepperton.|
|Sunday 5 August 2018 from 7am to 3:30pm||Henley reach||Thames marathon swim: all river users are asked to keep a good look out for the swimmers, navigate slowly and with particular caution when in their vicinity and give them a wide berth.|
|Sunday 12 August 2018 from 10am to 5pm||Bray reach||Thames punting club championships: the navigation channel will be established on the Maidenhead, left side of the river.|
|Saturday 12 August 2018 from 9am to 6pm||Molesey reach||Sunbury Amateur regatta: the navigation channel will be established on the left, Surrey side of the river.|
|Saturday 18 August 2018 from 9am to 5pm||Sunbury Reach||Walton Reach Regatta: the navigation channel will be on the Middlesex, right-hand side of the river.|
|Saturday 18 August 2018 from 10am to 6pm||Molesey Reach||Royal Canoe Club Regatta: the navigation channel will be on the Surrey, left-hand side of the river.|
|Saturday 1 September 2018 from 10am to 4pm||Henley Reach||Regatta for the disabled Henley: the navigation channel will be established on the Remenham, left side of the river.|
|Friday 20 July 2019 from 7pm to 8pm||Teddington reach||South London swimming club swim: the navigation channel will be established on the left, Kingston side of the river.|
Planned lock closures: updated 15 May 2018
The Environment Agency carries out a programme of works on the River Thames every year between November and Easter. This often results in the closure of a number of locks for relatively long periods.
So that river users can plan their winter cruising and boat movements well in advance, the Environment Agency publishes the first issue of their programme of works in early August each year.
This programme of work is subject to change, due to weather and other circumstances. Revised issues of the programme of works are published throughout the winter, so customers can keep up to date. To receive this information, sign up to the email update service by emailing firstname.lastname@example.org.
Keep up to date
Get the latest river information before you go boating. Call the Environment Agency Floodline on 0345 988 1188 and select option 1 for river information for boaters. When prompted enter one of the quick dial numbers below for the area of the river you want to hear about:
|Quick dial codes||Area||Description|
|415000||Upstream of St John’s Lock to Radcot Lock||St John’s to Radcot locks, including Buscot and Grafton locks|
|415001||Rushey to Godstow Lock||Rushey to Godstow locks, including Shifford, Northmoor, Pinkhill, Eynsham and Kings locks|
|415002||Osney to Iffley Lock||Osney to Iffley locks only|
|415003||Sandford to Clifton Lock||Sandford to Clifton locks, including Abingdon, and Culham locks|
|415004||Day’s to Mapledurham Lock||Day’s to Mapledurham locks, including Benson, Cleeve, Goring and Whitchurch locks|
|415005||Caversham to Shiplake Lock||Caversham to Shiplake locks, including Sonning Lock|
|415006||Marsh to Boveney Lock||Marsh to Boveney locks, including Hambleden, Hurley, Temple, Marlow, Cookham, Boulters and Bray locks|
|415007||Romney to Bell Weir Lock||Romney to Bell Weir locks, including Old Windsor Lock|
|415008||Penton Hook to Chertsey Lock||Penton Hook to Chertsey locks only|
|415009||Shepperton to Teddington Lock||Shepperton to Teddington locks, including Sunbury and Molesey locks|
|415010||River Kennet upstream of Blake’s Lock||River Kennet for upstream of Blake’s Lock and down to the confluence with the River Thames|
Find out about call charges.
The Environment Agency sends email updates on River Thames closures and restrictions. To subscribe to this service, email email@example.com with ‘subscribe to harbourmaster’s notices’ in the subject line.
Know your river conditions
Any river activity poses a greater risk when there are strong currents, high river levels or cold weather conditions. River flows can increase even during the summer months – never assume sunny weather means the conditions are not hazardous.
Warning boards may be displayed at locks to inform river users of the conditions. Read the explanations of what these mean for you. Don’t take risks and never underestimate the power of the river.
When these red boards are displayed on lock gates, we advise users of all boats not to navigate because the strong flows make it difficult and dangerous.
People in hire boats arriving at a lock where these boards are displayed should stop immediately and contact their hire boat operator to ask for instructions.
When these yellow boards are displayed on lock gates, we advise users of all unpowered boats not to navigate and users of powered boats to find a safe mooring. This is because river flows are likely to strengthen, and red boards could be displayed very soon and without further warning.
When these yellow boards are displayed on lock gates, we advise users of all unpowered boats not to navigate and users of powered boats to navigate with caution.
Dealing with changing river conditions
Read this section carefully to find out what to do if you find yourself in conditions where we advise you to stop navigating. Remember, not all conditions will be serious enough to require all the measures suggested below.
- Please take the advice to stop. Even the most experienced boater can be caught out, so think about those who could be put in danger if they have to help you.
- Moor your boat in a safe place, preferably in a marina or at a recognised mooring. Limited space may be available at some locks. Moor against high banks if you can.
- Ensure your mooring lines are fastened to secure fixings such as bollards, rings or even trees; put out extra lines for additional security and allow enough slack for a further rise in river levels; don’t rely on your own mooring pins or stakes, they might not hold.
- If possible, put extra fendering (eg scaffold poles or strong timber posts) between your boat and the bank side, to prevent your boat drifting onto the river bank and becoming caught up when levels drop.
- Make sure you have a safe exit ashore from your boat. If not, you should consider returning home or finding alternative accommodation until conditions improve.
- If you are running low on essential supplies or have other safety concerns and are not able to vacate your boat safely, treat this as an emergency and dial 999 to ask for evacuation.
- Those in hire boats: if you are advised to stop navigating, you should stop immediately and contact your hire boat operator and follow their instructions.
Please remember your life is more important than your boat
The Environment Agency does not provide emergency services and is not able to carry out search and rescue, or provide supplies to stranded boats.