Traffic Llandegfedd Reservoir

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Current traffic around Llandegfedd Reservoir

The following traffic incidents and congestion for Llandegfedd Reservoir have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:

BROKEN DOWN VEHICLE
Location: The M5 northbound exit slip at junction J19 (Portishead) .
Lane closures: Lane two is closed.
Reason: Broken down vehicle.
Status: Currently Active.
Time to clear: The event is expected to clear between 10:30 and 10:45 on 15 Dec 2025.
Return to normal: Normal traffic conditions are expected between 10:30 and 10:45 on 15 Dec 2025.
Lanes closed: There is one of two lanes closed.
Nearest town: 18.86 miles from Llandegfedd Reservoir. CLEARED @ 09:53
J29 CASTLETON TO J30 CARDIFF GATE
Description: M4WestboundJ29 (Cardiff) Castleton to J30 (Cardiff) Cardiff GateCongestionDelay: s possible :, Start time: 15/12/2025 8:28 , Expected end time: 15/12/2025 9:58, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:28
Nearest town: 11.09 miles from Llandegfedd Reservoir. CLEARED @ 08:42
M4 J33 CAPEL LLANILLTERN TO A48 INTERCHANGE
Description: A4232SouthboundM4 J33 Capel Llanilltern to A48 InterchangeCongestionDelay: s possible :, Start time: 15/12/2025 8:21 , Expected end time: 15/12/2025 9:51, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:21
Nearest town: 18.99 miles from Llandegfedd Reservoir. CLEARED @ 08:30
J33 CAPEL LLANILLTERN
Description: M4WestboundJ33 (Cardiff) Capel LlanillternCongestionoffslipDelay: s possible :, Start time: 15/12/2025 8:21 , Expected end time: 15/12/2025 9:51, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:21
Nearest town: 18.74 miles from Llandegfedd Reservoir. CLEARED @ 08:30
J33 CAPEL LLANILLTERN
Description: M4EastboundJ33 (Cardiff) Capel LlanillternCongestionoffslipDelay: s possible :, Start time: 15/12/2025 8:09 , Expected end time: 15/12/2025 10:09, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:09
Nearest town: 18.74 miles from Llandegfedd Reservoir. CLEARED @ 08:18
J29 CASTLETON TO J29A ST MELLONS
Description: A48MWestboundJ29 Castleton to J29A St MellonsCongestionDelay: s possible :, Start time: 15/12/2025 8:12 , Expected end time: 15/12/2025 10:12, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:12
Nearest town: 11.14 miles from Llandegfedd Reservoir. CLEARED @ 08:18
A48 INTERCHANGE TO M4 J33 CAPEL LLANILLTERN
Description: A4232NorthboundA48 Interchange to M4 J33 Capel LlanillternCongestionDelay: s possible :, Start time: 15/12/2025 8:12 , Expected end time: 15/12/2025 10:12, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:12
Nearest town: 18.99 miles from Llandegfedd Reservoir. CLEARED @ 08:18
J28 TREDEGAR PARK TO J24 COLDRA
Description: M4EastboundJ28 (Newport) Tredegar Park to J24 (Newport) ColdraCongestionDelay: s possible :, Start time: 15/12/2025 7:16 , Expected end time: 15/12/2025 9:16, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 7:16
Nearest town: 6.06 miles from Llandegfedd Reservoir. CLEARED @ 07:30
PONTYPRIDD TO CORYTON
Description: A470SouthboundPontypridd to CorytonCongestion :, Start time: 15/12/2025 6:44 , Expected end time: 15/12/2025 12:44, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 6:44
Nearest town: 14.93 miles from Llandegfedd Reservoir. CLEARED @ 06:54
NANTGARW TO TAFF'S WELL
Description: A470SouthboundNantgarw to Taffs WellIncidentLane closedDelay: s possible :, Start time: 15/12/2025 6:17 , Expected end time: 15/12/2025 8:00, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 6:17
Nearest town: 15.51 miles from Llandegfedd Reservoir. CLEARED @ 06:30
PONTARGOTHI
Description: A40Both directionsPontargothi16/12/25-15/12/25 0900-1530BridgeEmergency workClosedDiversions in place16/12/25 0900-1530 :, Start time: 16/12/2025 9:00 , End Date: 16/12/2025 15:30, Severity: Road closure, Source: Welsh Government, Last updated: 12/12/2025 9:03
Nearest town: 7.65 miles from Llandegfedd Reservoir. CLEARED @ 09:42
J22 PILNING/SECOND SEVERN CROSSING TO J30 CARDIFF GATE
Description: M4Both directionsJ22 (Avonmouth) Pilning/Second Severn Crossing to J30 (Cardiff) Cardiff GatePoor driving conditionsSpeed restrictions, Start time: 15/12/2025 6:05 , Expected end time: 15/12/2025 16:00, Severity: Slight, Source: Welsh Government, Last updated: 15/12/2025 6:05
Nearest town: 7.22 miles from Llandegfedd Reservoir. CLEARED @ 06:18


There are no current incidents in this location.

Roadworks

ROAD WORKS
Location: The M4 eastbound at junction J22 (Avonmouth) .
Lane closures: The hard shoulder is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 06:00 on 19 Dec 2025.
Nearest town: 16.22 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 westbound at junction J22 (Avonmouth) .
Lane closures: The hard shoulder is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 06:00 on 19 Dec 2025.
Nearest town: 16.28 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound between junctions J18 (Bristol) and J19 (Portishead) .
Lane closures: Lane four is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 06:00 on 15 Dec 2025.
Lanes Closed: There is one of four lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir. CLEARED @ 05:59
ROAD WORKS
Location: The A40 westbound between the A49 and the junction with the A466 .
Lane closures: Lane two is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 06:00 on 28 Feb 2026.
Lanes Closed: There is one of two lanes closed.
Nearest town: 19.16 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The A40 westbound.
Reason: Roadworks scheme.
Status: Currently Active.
Period: from 16:03 on 17 Nov 2025 to 06:00 on 28 Feb 2026.
Nearest town: 19.16 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 19.17 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 19.49 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound exit slip at junction J22 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 16.22 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound entry slip at junction J22 (Avonmouth) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 16.43 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 20:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 18.79 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead) and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 20:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of four lanes closed.
Nearest town: 18.7 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound at junction J18 (Bristol) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 15 Dec 2025 to 20 Dec 2025.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 5 Jan 2026 to 7 Jan 2026.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 8 Jan 2026 to 10 Jan 2026.
Schedule: From 21:00 on 10 Jan 2026 to 06:00 on 11 Jan 2026.
Lanes Closed: All lanes will be closed.
Nearest town: 18.8 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound at junction J18 (Bristol) .
Lane closures: Lane three will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 7 Jan 2026 to 06:00 on 8 Jan 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 18.8 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound between junctions J18 (Bristol) and J19 (Portishead) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 15 Dec 2025 to 20 Dec 2025.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 5 Jan 2026 to 7 Jan 2026.
Schedule: Expect disruption everyday between 21:30 and 06:00 from 8 Jan 2026 to 10 Jan 2026.
Schedule: From 21:00 on 10 Jan 2026 to 06:00 on 11 Jan 2026.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound at junction J19 (Portishead) .
Lane closures: Lane three will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 7 Jan 2026 to 06:00 on 8 Jan 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 19 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound between junctions J18 (Bristol) and J19 (Portishead) .
Lane closures: Lanes 3 and 4 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 7 Jan 2026 to 06:00 on 8 Jan 2026.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Nearest town: 16.82 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M49 southbound between the junctions with the M4 and the M5 .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 18.4 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M49 northbound between the junctions with the M5 and the M4 .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 18.67 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 northbound exit slip at junction J18A (South Wales) .
Lane closures: Lane two will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 northbound at junction J18 (Bristol) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 17 Dec 2025 to 19 Dec 2025.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 18.71 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound exit slip at junction J18 (Bristol) .
Lane closures: Lane one will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 17 Dec 2025 to 19 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 18.72 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M48 westbound between the M4 and junction J1 (Avonmouth) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Nearest town: 18.8 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M48 westbound at junction J1 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 17.24 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M48 westbound between the M4 and junction J1 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 18.8 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 westbound entry slip at junction J22 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:30 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 16.42 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M49 northbound between the junctions with the M5 and the M4 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 16.69 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 21:00 on 17 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 19.55 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 westbound entry slip at junction J22 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 16.42 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M48 westbound between junctions J1 (Avonmouth) and J2 (Chepstow) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 21:00 on 17 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 16.55 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M49 northbound between the junctions with the M5 and the M4 .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 16.65 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lane two will be closed.
Reason: Road repairs are planned.
Status: Pending.
Schedule: From 20:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 17.09 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound exit slip at junction J22 (Avonmouth) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 16.22 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 21:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Nearest town: 12.9 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 12.9 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M48 eastbound between junctions J2 (Chepstow) and J1 (Avonmouth) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 19:00 on 16 Dec 2025 to 06:00 on 17 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.57 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 08:00 on 16 Dec 2025 to 17:00 on 16 Dec 2025.
Nearest town: 18.93 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M4 eastbound at junction J22 (Avonmouth) .
Lane closures: Lane one will be closed.
Reason: Road repairs are planned.
Status: Pending.
Schedule: From 20:00 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 16.22 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 northbound between junctions J19 (Portishead) and J18 (Bristol) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 15 Dec 2025 to 19 Dec 2025.
Schedule: From 22:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 19.01 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 northbound at junction J19 (Portishead) .
Lane closures: Lanes 1, 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 15 Dec 2025 to 19 Dec 2025.
Schedule: From 22:00 on 19 Dec 2025 to 06:00 on 20 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 18.89 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 northbound between junctions J18A (South Wales) and J17 (Bristol West) .
Lane closures: The hard shoulder is closed.
Reason: Horticultural works.
Status: Currently Active.
Period: expect disruption until 16:00 on 15 Dec 2025.
Nearest town: 19.09 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 southbound between junctions J17 (Bristol West) and J18 (Bristol) .
Lane closures: The hard shoulder is closed.
Reason: Horticultural works.
Status: Currently Active.
Period: expect disruption until 16:00 on 15 Dec 2025.
Nearest town: 19.33 miles from Llandegfedd Reservoir.
ROAD WORKS
Location: The M5 northbound at junction J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Emergency roadside drains works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 15 Dec 2025 to 28 Mar 2026.
Schedule: From 20:00 on 28 Mar 2026 to 04:00 on 29 Mar 2026.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 29 Mar 2026 to 1 Apr 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 18.99 miles from Llandegfedd Reservoir.

Traffic in Nearby Villages

Llandegfedd Reservoir

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Location: northbound exit slip at junction J19 (Portishead) .

Lane Closures : Lane two is closed.

Due to: Broken down vehicle.



Time To Clear : The event is expected to clear between 10:30 and 10:45 on 15 December 2025.

Normal traffic conditions are expected between 10:30 and 10:45 on 15 December 2025.

Lanes Closed : There is one of two lanes closed.
Nearest town: 18.86 miles from Llandegfedd Reservoir.

51.48--2.71

Description: M4 : Westbound : J29 (Cardiff) Castleton to J30 (Cardiff) Cardiff Gate : Congestion : Delays possible :, Start time: 15/12/2025 8:28 , Expected end time: 15/12/2025 9:58, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:28
Nearest town: 11.09 miles from Llandegfedd Reservoir.

51.55--3.1

Description: A4232 : Southbound : M4 J33 Capel Llanilltern to A48 Interchange : Congestion : Delays possible :, Start time: 15/12/2025 8:21 , Expected end time: 15/12/2025 9:51, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:21
Nearest town: 18.99 miles from Llandegfedd Reservoir.

51.49--3.29

Description: M4 : Westbound : J33 (Cardiff) Capel Llanilltern : Congestion : offslip : Delays possible :, Start time: 15/12/2025 8:21 , Expected end time: 15/12/2025 9:51, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:21
Nearest town: 18.74 miles from Llandegfedd Reservoir.

51.51--3.31

Description: M4 : Eastbound : J33 (Cardiff) Capel Llanilltern : Congestion : offslip : Delays possible :, Start time: 15/12/2025 8:09 , Expected end time: 15/12/2025 10:09, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:09
Nearest town: 18.74 miles from Llandegfedd Reservoir.

51.51--3.31

Description: A48M : Westbound : J29 Castleton to J29A St Mellons : Congestion : Delays possible :, Start time: 15/12/2025 8:12 , Expected end time: 15/12/2025 10:12, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:12
Nearest town: 11.14 miles from Llandegfedd Reservoir.

51.54--3.09

Description: A4232 : Northbound : A48 Interchange to M4 J33 Capel Llanilltern : Congestion : Delays possible :, Start time: 15/12/2025 8:12 , Expected end time: 15/12/2025 10:12, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 8:12
Nearest town: 18.99 miles from Llandegfedd Reservoir.

51.49--3.29

Description: M4 : Eastbound : J28 (Newport) Tredegar Park to J24 (Newport) Coldra : Congestion : Delays possible :, Start time: 15/12/2025 7:16 , Expected end time: 15/12/2025 9:16, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 7:16
Nearest town: 6.06 miles from Llandegfedd Reservoir.

51.6--3

Description: A470 : Southbound : Pontypridd to Coryton : Congestion :, Start time: 15/12/2025 6:44 , Expected end time: 15/12/2025 12:44, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 6:44
Nearest town: 14.93 miles from Llandegfedd Reservoir.

51.57--3.27

Description: A470 : Southbound : Nantgarw to Taffs Well : Incident : Lane closed : Delays possible :, Start time: 15/12/2025 6:17 , Expected end time: 15/12/2025 8:00, Severity: Moderate, Source: Welsh Government, Last updated: 15/12/2025 6:17
Nearest town: 15.51 miles from Llandegfedd Reservoir.

51.55--3.27

Description: A40 : Both directions : Pontargothi : 16/12/25-15/12/25 0900-1530 : Bridge : Emergency work : Closed : Diversions in place : 16/12/25 0900-1530 :, Start time: 16/12/2025 9:00 , End Date: 16/12/2025 15:30, Severity: Road closure, Source: Welsh Government, Last updated: 12/12/2025 9:03
Nearest town: 7.65 miles from Llandegfedd Reservoir.

51.77--2.86

Description: M4 : Both directions : J22 (Avonmouth) Pilning/Second Severn Crossing to J30 (Cardiff) Cardiff Gate : Poor driving conditions : Speed restrictions, Start time: 15/12/2025 6:05 , Expected end time: 15/12/2025 16:00, Severity: Slight, Source: Welsh Government, Last updated: 15/12/2025 6:05
Nearest town: 7.22 miles from Llandegfedd Reservoir.

51.6--2.9

Location: eastbound at junction J22 (Avonmouth) .

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 06:00 on 19 December 2025.
Nearest town: 16.22 miles from Llandegfedd Reservoir.

51.57--2.66

Location: westbound at junction J22 (Avonmouth) .

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 06:00 on 19 December 2025.
Nearest town: 16.28 miles from Llandegfedd Reservoir.

51.57--2.66

Location: southbound between junctions J18 (Bristol) and J19 (Portishead) .

Lane Closures : Lane four is closed.

Due to: Roadworks.



Period : expect disruption until 06:00 on 15 December 2025.

Lanes Closed : There is one of four lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.

51.5--2.68

Location: westbound between the A49 and the junction with the A466 .

Lane Closures : Lane two is closed.

Due to: Roadworks.



Period : expect disruption until 06:00 on 28 February 2026.

Lanes Closed : There is one of two lanes closed.
Nearest town: 19.16 miles from Llandegfedd Reservoir.

51.86--2.64

Location: westbound.

Due to: Roadworks scheme.



Period : from 16:03 on 17 November 2025 to 06:00 on 28 February 2026.
Nearest town: 19.16 miles from Llandegfedd Reservoir.

51.86--2.64

Location: eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.17 miles from Llandegfedd Reservoir.

51.57--2.58

Location: eastbound between junctions J22 (Avonmouth) and J20 (Bristol) .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.49 miles from Llandegfedd Reservoir.

51.57--2.58

Location: eastbound exit slip at junction J22 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 16.22 miles from Llandegfedd Reservoir.

51.57--2.66

Location: eastbound entry slip at junction J22 (Avonmouth) .

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 16.43 miles from Llandegfedd Reservoir.

51.57--2.66

Location: southbound between junctions J19 (Portishead) and J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 20:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.79 miles from Llandegfedd Reservoir.

51.46--2.75

Location: southbound between junctions J19 (Portishead) and J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 20:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of four lanes closed.
Nearest town: 18.7 miles from Llandegfedd Reservoir.

51.47--2.74

Location: southbound at junction J18 (Bristol) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 15 December 2025 to 20 December 2025.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 5 January 2026 to 7 January 2026.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 8 January 2026 to 10 January 2026.

Schedule : From 21:00 on 10 January 2026 to 06:00 on 11 January 2026.

Lanes Closed : All lanes will be closed.
Nearest town: 18.8 miles from Llandegfedd Reservoir.

51.5--2.67

Location: southbound at junction J18 (Bristol) .

Lane Closures : Lane three will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 7 January 2026 to 06:00 on 8 January 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.8 miles from Llandegfedd Reservoir.

51.5--2.67

Location: southbound between junctions J18 (Bristol) and J19 (Portishead) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 15 December 2025 to 20 December 2025.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 5 January 2026 to 7 January 2026.

Schedule : Expect disruption everyday between 21:30 and 06:00 from 8 January 2026 to 10 January 2026.

Schedule : From 21:00 on 10 January 2026 to 06:00 on 11 January 2026.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.

51.5--2.68

Location: southbound at junction J19 (Portishead) .

Lane Closures : Lane three will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 7 January 2026 to 06:00 on 8 January 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 19 miles from Llandegfedd Reservoir.

51.48--2.71

Location: southbound between junctions J18 (Bristol) and J19 (Portishead) .

Lane Closures : Lanes 3 and 4 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 7 January 2026 to 06:00 on 8 January 2026.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.

51.5--2.68

Location: westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.
Nearest town: 16.82 miles from Llandegfedd Reservoir.

51.57--2.65

Location: southbound between the junctions with the M4 and the M5 .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.4 miles from Llandegfedd Reservoir.

51.52--2.66

Location: northbound between the junctions with the M5 and the M4 .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.67 miles from Llandegfedd Reservoir.

51.51--2.67

Location: northbound exit slip at junction J18A (South Wales) .

Lane Closures : Lane two will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.75 miles from Llandegfedd Reservoir.

51.51--2.67

Location: northbound at junction J18 (Bristol) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 December 2025 to 19 December 2025.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.71 miles from Llandegfedd Reservoir.

51.5--2.68

Location: southbound exit slip at junction J18 (Bristol) .

Lane Closures : Lane one will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 December 2025 to 19 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.72 miles from Llandegfedd Reservoir.

51.5--2.68

Location: westbound between the M4 and junction J1 (Avonmouth) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.
Nearest town: 18.8 miles from Llandegfedd Reservoir.

51.58--2.59

Location: westbound at junction J1 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 17.24 miles from Llandegfedd Reservoir.

51.6--2.61

Location: westbound between the M4 and junction J1 (Avonmouth) .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.8 miles from Llandegfedd Reservoir.

51.58--2.59

Location: westbound entry slip at junction J22 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:30 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 16.42 miles from Llandegfedd Reservoir.

51.57--2.66

Location: northbound between the junctions with the M5 and the M4 .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.69 miles from Llandegfedd Reservoir.

51.56--2.66

Location: westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 21:00 on 17 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.55 miles from Llandegfedd Reservoir.

51.57--2.58

Location: westbound entry slip at junction J22 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 16.42 miles from Llandegfedd Reservoir.

51.57--2.66

Location: westbound between junctions J1 (Avonmouth) and J2 (Chepstow) .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 21:00 on 17 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.55 miles from Llandegfedd Reservoir.

51.61--2.63

Location: northbound between the junctions with the M5 and the M4 .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.65 miles from Llandegfedd Reservoir.

51.56--2.66

Location: westbound between junctions J21 (Chepstow) and J22 (Avonmouth) .

Lane Closures : Lane two will be closed.

Due to: Road repairs are planned.

Status : Pending.

Schedule : From 20:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.09 miles from Llandegfedd Reservoir.

51.57--2.64

Location: eastbound exit slip at junction J22 (Avonmouth) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 16.22 miles from Llandegfedd Reservoir.

51.57--2.66

Location: eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.
Nearest town: 12.9 miles from Llandegfedd Reservoir.

51.58--2.74

Location: eastbound between junctions J23 (Chepstow) and J22 (Avonmouth) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 12.9 miles from Llandegfedd Reservoir.

51.58--2.74

Location: eastbound between junctions J2 (Chepstow) and J1 (Avonmouth) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 19:00 on 16 December 2025 to 06:00 on 17 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 14.57 miles from Llandegfedd Reservoir.

51.62--2.67

Location: eastbound between junctions J22 (Avonmouth) and J21 (Chepstow) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 08:00 on 16 December 2025 to 17:00 on 16 December 2025.
Nearest town: 18.93 miles from Llandegfedd Reservoir.

51.57--2.59

Location: eastbound at junction J22 (Avonmouth) .

Lane Closures : Lane one will be closed.

Due to: Road repairs are planned.

Status : Pending.

Schedule : From 20:00 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.22 miles from Llandegfedd Reservoir.

51.57--2.66

Location: northbound between junctions J19 (Portishead) and J18 (Bristol) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 December 2025 to 19 December 2025.

Schedule : From 22:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.01 miles from Llandegfedd Reservoir.

51.48--2.71

Location: northbound at junction J19 (Portishead) .

Lane Closures : Lanes 1, 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 December 2025 to 19 December 2025.

Schedule : From 22:00 on 19 December 2025 to 06:00 on 20 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 18.89 miles from Llandegfedd Reservoir.

51.48--2.71

Location: northbound between junctions J18A (South Wales) and J17 (Bristol West) .

Lane Closures : The hard shoulder is closed.

Due to: Horticultural works.



Period : expect disruption until 16:00 on 15 December 2025.
Nearest town: 19.09 miles from Llandegfedd Reservoir.

51.52--2.64

Location: southbound between junctions J17 (Bristol West) and J18 (Bristol) .

Lane Closures : The hard shoulder is closed.

Due to: Horticultural works.



Period : expect disruption until 16:00 on 15 December 2025.
Nearest town: 19.33 miles from Llandegfedd Reservoir.

51.52--2.63

Location: northbound at junction J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Emergency roadside drains works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 15 December 2025 to 28 March 2026.

Schedule : From 20:00 on 28 March 2026 to 04:00 on 29 March 2026.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 29 March 2026 to 1 April 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.99 miles from Llandegfedd Reservoir.

51.43--2.84