M25 Clockwise Shut Between J25 and J26 for Overnight Roadworks

A full carriageway closure was in force on the M25 clockwise between junction 25 (A10, Waltham Cross) and junction 26 (Waltham Abbey/M11), running overnight until 05:30 today, according to the estate's own traffic-monitoring instrument that flagged this story. The closure was part of a wider batch of scheduled works reported at 06:29 on the M25 network, according to [2]. Alongside the J25–J26 closure, National Highways also had a hard shoulder closure clockwise between junctions 23 and 24, lane closures clockwise between junctions 24 and 25, a hard shoulder closure anticlockwise between junctions 30 and 29, a full carriageway closure at the J2 anticlockwise exit, and a carriageway closure on the M40 link road from J1A northbound onto the M25 anticlockwise at junction 16, according to [2]. The source describes 15 planned closures scheduled across the M25 in total that morning, according to [2]. It is worth flagging a wrinkle in the reporting material: source [2], the M25 roadworks tracker, carries a confused timestamp — its page header reads "Tuesday, 25 August 2026" while repeatedly citing "16-04-2021" style dates elsewhere in the same feed, and an older National Highways incident bulletin in the material, source [1], is dated 16 April 2021 and describes a different, unrelated cluster of accidents and congestion around junctions 25–27 and 10–12 that day. Mason's ledger flagged the J25–J26 closure as "active now until today 05:30," but the two source documents do not agree on which day "today" is, so the precise calendar date of the closure described here is unconfirmed. Wayne should treat the overnight window as the reliable part of the story and the date as unverified pending a fresh pull from National Highways' live feed. Separately, source [1] recorded that on 16 April 2021 there was a road traffic collision on the M25 clockwise between junctions 25 and 26 that caused roughly ten minutes of delay against expected traffic, with normal conditions expected to resume between 16:00 and 16:15 that day, according to [1]. That incident, and a further collision further round the clockwise carriageway between junctions 26 and 27 which shut two of four lanes, appear to be historical and are not confirmed to be connected to the overnight closure that triggered this story. Neither source gives a reason for the J25–J26 carriageway closure itself — no maintenance description, contractor name or diversion route is included in the material — so the underlying cause of the works is unconfirmed. Source [2] does note more broadly that roadworks are "one of the main causes of congestion, delays and holdups" on what it calls one of the busiest motorways in Europe, and recommends checking live traffic flow data before travelling, according to [2]. What to watch next: a fresh check of National Highways' live incident feed once the road reopens, to confirm the actual closure date, confirm the carriageway has returned to normal running by 05:30, and establish whether any of the other five closures listed by [2] overlapped or caused knock-on congestion for early commuters using junctions 23 to 26.