River Thames conditions, closures, restrictions and lock closures - GOV.UK
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River Thames conditions, closures, restrictions and lock closures

River closures: updated 4 April 2019

There are currently no planned river closures.

River restrictions: updated 18 April 2019

When Where What’s happening
Friday 12 April to Monday 17 June 2019 Henley reach Henley Royal Regatta course construction: all boats travelling downstream must navigate on the left, Remenham side of the river within the regatta course and all boats travelling upstream must navigate on the right, Fawley Court side of the river.
Friday 19 to Monday 22 April 2019 Blakes Lock to Teddington Lock Devizes to Westminster Canoe Race: it is likely you will encounter canoeists participating in the 125 mile race. When near to canoes, think ahead - slow down and check your wash.
Monday 22 April 2019, from 10am to midday Caversham reach Reading Canoe Club Assessment Races: the navigation channel will be on the Reading Canoe Club, right hand side of the river.
Sunday 28 April 2019, from 8am to 6pm Iffley reach City of Oxford bumps: Regatta boards will mark the upstream and downstream extent of the course.
Saturday 4 May 2019, from 1pm to 4pm Sunbury reach Elmbridge Sprint Regatta: the navigation channel will be on the old river channel at Shepperton.
Monday 6 May 2019, from 8am to 6:30pm Marlow reach Marlow Spring Regatta: the navigation channel will be on the right hand, Berkshire side of the river.
Saturday 18 May 2019, from 7am to 8pm Teddington reach Thames Ditton Regatta: the navigation channel will be established on the right hand, Hampton Court side of the river.
Saturday 8 June 2019, from 8am to 5:30pm Mapledurham reach Charity Dragon Boat Racing Pangbourne: the navigation channel will be on the Whitchurch on Thames, right hand side of the river.
Saturday 8 June 2019, from 8am to 6pm Sunbury reach Walton and Weybridge Regatta: the navigation channel will be on the Middlesex, right hand side of the river.
Sunday 9 June 2019, from 10am to 1:30pm Teddington reach Royal Canoe Club, Royal Hasler Marathon: the navigation channel will be on the Surrey, left hand side of the river.
Saturday 15 June 2019, from 9am to 5pm and Sunday 16 June 2019, from 9:30am to 2:30pm Marlow reach Marlow Town Regatta and Canoe and Dragon Boat Races: the navigation channel will be on the left hand, Berkshire side of the river.
Sunday 16 June 2019, from 6am to 9:45am Romney reach Humanrace, Windsor Triathlon: the navigation channel will be on the Eton, north, right side of the river.
Sunday 16 June 2019, from 7:30am to 11:30am Kings reach Swim Oxford, Lock to Lock Swim: the navigation channel will be in the centre of the river.
Saturday 22 June 2019, from 10am to midday Caversham reach Reading Canoe Club Assessment Races: the navigation channel will be on the Reading Canoe Club, right hand side of the river.
Sunday 23 June 2019, from 7am to 9am Marsh reach Wargrave Sprint Triathlon: the navigation channel will be on the Oxfordshire, Shiplake, right side of the river.
Sunday 30 June 2019, from 4am to 7am Henley reach Henley Classic Swim: the navigation channel will be on the Buckinghamshire, Fawley Court, right side of the river.
Sunday 30 June 2019, from 8:30am to 7pm Bell Weir reach Egham Regatta: the navigation channel will be on the right, non-towpath side of the river.
Saturday 6 July 2019, from 6am to 8am Bray reach The Boulters to Bray Swim: during the stated times, swimmers will depart from Boulters Lock and swim downstream to the Waterside Inn, Bray.
Saturday 6 July 2019, from 9am to 5pm Teddington reach Royal Canoe Club, Royal Sprint Regatta: the navigation channel will be on the Surrey, left hand side of the river.
Saturday 6 July and Sunday 7 July 2019, from 8am to 6pm Teddington reach National Sea Scout Regatta: the navigation channel will be on the Middlesex, right hand side of the river.
Saturday 13 July and Sunday 14 July 2019, from 8:30am to 7pm Teddington reach Kingston Amateur Regatta: the navigation channel will be on the Surrey, left hand side of the river.
Sunday 14 July 2019, from 7:30am to 12:30pm Kings reach Swim Oxford, 10 Kilometre Swim: the navigation channel will be in the centre of the river.
Sunday 14 July 2019, from 8am to 4:30pm Henley reach Henley Mile Swim: the navigation channel will be on the Buckinghamshire, Fawley Court, right side of the river.
Saturday 20 July 2019, from 6:15pm to 9pm Henley reach Club to Pub Swim: the navigation channel will be on the Wargrave Road, left side of Bird Island and Rod Eyot.
Sunday 4 August 2019, from 7am to 3:30pm Henley reach Thames Marathon Swim: during the stated times, approximately 750 swimmers will leave Leander Club near Henley Bridge and swim downstream via Hambleden, Hurley and Temple Locks to Higginson Park, Marlow.
Sunday 1 September 2019, from 11am to 1pm Iffley reach Swim Oxford, Oxford Mile: the navigation channel will be in the centre of the river.
Sunday 15 September 2019, from 7:30am to 12pm Kings reach Swim Oxford, Swim Run: the navigation channel will be in the centre of the river.
Sunday 13 October 2019, from 8am to 1pm Henley reach Phyllis Court Club Autumn Time Trial: the navigation channel will be in the centre of the river.
Saturday 19 October 2019, from 1pm from 3pm Teddington reach Royal Canoe Club Paddling Challenge: the navigation channel will be on the Surrey, left hand side of the river.

The Environment Agency carries out a programme of works on the River Thames every year between October 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 August each year.

Listed below are the locks that will be closed during the 2018 to 2019 investment programme. The locks will be closed from the first date listed and re-open on the day after the final date:

When Where What’s happening
29 October 2018 to 27 March 2019 Teddington Lock (Launch) Refurbishing the lock chamber concrete walls and replacing the lock side rubbing timbers and bollards. River users will still be able to navigate through the Barge Lock.

Here is a map showing the above closures.

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