Crash View

A414 both directions Breakspear to Park Street Roundabout - carriageway closure

Cleared

A414 both directions Breakspear to Park Street Roundabout - carriageway closure

Start time
Wed, Apr 8, 2026 7:00 PM
Expected end
Thu, Apr 9, 2026 5:00 AM
Duration
10 hours
Road
A414 – M1 Southbound Within J8
Category
Authority Operation
Direction
Southbound
Carriageway
Dual Carriageway
Reason
Other
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Wed, Mar 25, 2026 2:44 PM
Last updated
Wed, Apr 8, 2026 7:30 AM
Cleared
Thu, Apr 9, 2026 5:00 AM
  • Latest update: A414 both directions Breakspear to Park Street Roundabout - carriageway closure
Coordinates
51.740134, -0.377524
Latitude span
51.732946 – 51.755488
Longitude span
-0.415102 – -0.344888
Bounding box centre
51.744217, -0.379995
Location descriptions
  • M1 southbound within J8
  • A414 eastbound between the M1 and the A405
  • A414 westbound between A405 and M1
Feed validity status
Planned
Overall feed start
Wed, Apr 8, 2026 7:00 PM
Overall feed end
Thu, Apr 9, 2026 5:00 AM
Feed window length
10 hours
Probability code (raw)
probable
Compliance option (raw)
mandatory
Source identification (raw)
roadworks
Management type value
carriagewayClosures (Carriageway Closures)
Contra-flow flag (raw)
false
Width restriction flag (raw)
false
Height restriction flag (raw)
false
Weight restriction flag (raw)
false

Segment 1

4 coordinate pairs
Description
M1 southbound within J8
Carriageway
Dual Carriageway
Lanes Restricted
5 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{32A63F48-F2FE-41C1-81B6-8187616B4314}
Linear Element Type
B Carriageway
From Distance
175 m
To Distance
438 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.755488 -0.415102
51.754821 -0.4147
51.753933 -0.414062
51.75333 -0.413562

Segment 2

7 coordinate pairs
Description
M1 southbound within J8
Carriageway
Dual Carriageway
Lanes Restricted
5 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{454FEA01-1BAF-4ECD-B6B0-6F805CC55763}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
337 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.75333 -0.413562
51.752898 -0.413164
51.752858 -0.413122
51.752239 -0.412479
51.751482 -0.411545
51.75104 -0.410969
51.750871 -0.410724

Segment 3

19 coordinate pairs
Description
A414 eastbound between the M1 and the A405
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{F532FFD9-5CA3-44CD-B0C4-4BF215284A4C}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
718 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.735542 -0.354352
51.735345 -0.353838
51.735169 -0.353381
51.73515 -0.353324
51.734805 -0.352409
51.734561 -0.351708
51.734194 -0.350549
51.734175 -0.350492
51.733948 -0.349689
51.733796 -0.349086
51.733624 -0.348354
51.733297 -0.346831
51.733181 -0.34627
51.733114 -0.345997
51.733085 -0.345868
51.733018 -0.345566
51.732959 -0.345192
51.732948 -0.345048
51.732946 -0.344888

Segment 4

2 coordinate pairs
Description
A414 westbound between A405 and M1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
West Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{EDDDEA60-5700-429F-AB0F-A0BC3379A837}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
10 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.735589 -0.354481
51.735542 -0.354352

Segment 5

30 coordinate pairs
Description
A414 eastbound between the M1 and the A405
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{388DFC79-7210-488E-90D4-6A6D2A531254}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,593 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.742228 -0.394694
51.741957 -0.393727
51.741714 -0.392874
51.741373 -0.391641
51.741163 -0.390843
51.74105 -0.390421
51.741048 -0.390412
51.740687 -0.389116
51.740625 -0.388886
51.739971 -0.386462
51.739621 -0.385156
51.739609 -0.385113
51.739073 -0.383197
51.739012 -0.382962
51.738635 -0.381513
51.738436 -0.380665
51.738425 -0.380622
51.738372 -0.380378
51.738291 -0.380004
51.738165 -0.379371
51.738047 -0.378704
51.73791 -0.377845
51.737811 -0.377183
51.737725 -0.37642
51.737655 -0.375741
51.737635 -0.375564
51.737592 -0.375073
51.73754 -0.374484
51.737503 -0.37376
51.737475 -0.373081

Segment 6

32 coordinate pairs
Description
A414 eastbound between the M1 and the A405
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{F93D7315-F9C6-46EA-86A7-6E5CA1D0CEC7}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,325 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.737475 -0.373081
51.737462 -0.372763
51.737444 -0.372112
51.737452 -0.371344
51.737488 -0.370106
51.737521 -0.369169
51.737602 -0.367934
51.737617 -0.367051
51.737625 -0.366501
51.737626 -0.366399
51.737618 -0.365784
51.73759 -0.365126
51.737585 -0.365039
51.737578 -0.364909
51.737576 -0.364735
51.737529 -0.363955
51.737495 -0.363478
51.7374 -0.362439
51.737329 -0.361848
51.737252 -0.3613
51.737169 -0.360709
51.737042 -0.359961
51.736905 -0.359227
51.736887 -0.359141
51.736742 -0.358451
51.736684 -0.358192
51.736569 -0.357704
51.73636 -0.3569
51.736181 -0.356284
51.735973 -0.355597
51.735804 -0.355081
51.735589 -0.354481

Segment 7

15 coordinate pairs
Description
A414 eastbound between the M1 and the A405
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{515EFF1B-EC8E-4EA9-9D6B-1C1C46D3B238}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,291 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.750871 -0.410724
51.750488 -0.410168
51.75047 -0.410142
51.750031 -0.409414
51.748795 -0.407593
51.748402 -0.406999
51.747052 -0.40496
51.746435 -0.404034
51.745372 -0.402416
51.744506 -0.401017
51.744132 -0.400318
51.743801 -0.399621
51.743473 -0.398868
51.743086 -0.397808
51.74292 -0.397238

Segment 8

3 coordinate pairs
Description
A414 eastbound between the M1 and the A405
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{89E819FC-40DE-413B-BA4D-8ECDC501F417}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
169 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.74292 -0.397238
51.742902 -0.397163
51.742313 -0.394984

Segment 9

2 coordinate pairs
Description
A414 eastbound between the M1 and the A405
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A414
Linear Element Model
The Network Model
Linear Element Id
{FDFD7C92-6BDD-4F36-B5D8-D4BF86464DD4}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
22 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.742313 -0.394984
51.742228 -0.394694
Geometry type
MultiLineString
Geometry points
114
First coordinate pair
-0.415102, 51.755488
Road section segments
1
Road section points
114
View geometry JSON 
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View road section coordinates 
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]
Cause type
Authority Operation
Detailed cause
Other
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
3
Record created
Wed, Mar 25, 2026 2:44 PM
Record versioned
Wed, Apr 8, 2026 7:30 AM
Coordinate source
Geometry

Driving on the A414? See every live closure, roadwork and planned restriction on this road.

A414 live closures

Related incidents

M1 southbound Jct 9 to Jct 8 carriageway closure

Cleared Roadworks National Highways
St Albans M1 · M1 J9 Southbound Exit

Cleared 1 day 8 hours ago

Started 12 Jun 2026, 21:00 Ended 13 Jun 2026, 02:40

M1 southbound Jct 9 to Jct 8 carriageway closure

Category: Road Maintenance
View update

M1 southbound Jct 9 to Jct 8 lane 1, 2 and 3 closure (MP 46/3 to 45/1)

Cleared Roadworks National Highways
St Albans M1 · M1 Southbound Between J10 And J9

Cleared 1 day 14 hours ago

Started 12 Jun 2026, 21:00 Ended 12 Jun 2026, 21:15

M1 southbound Jct 9 to Jct 8 lane 1, 2 and 3 closure (MP 46/3 to 45/1)

Category: Road Maintenance
View update

M1 northbound Jct 6A to Jct 9 lane 4 closure (MP 36/8 to 38/9)

Cleared Roadworks National Highways
St Albans A414 · A414 Westbound Between A405 And M1

Cleared 2 days 13 hours ago

Started 11 Jun 2026, 21:00 Ended 11 Jun 2026, 21:45

M1 northbound Jct 6A to Jct 9 lane 4 closure (MP 36/8 to 38/9)

Category: Construction Work
View update

M1 southbound Jct 9 to Jct 8 carriageway closure

Cleared Roadworks National Highways
St Albans M1 · M1 J9 Southbound Exit

Cleared 2 days 7 hours ago

Started 11 Jun 2026, 21:00 Ended 12 Jun 2026, 04:00

M1 southbound Jct 9 to Jct 8 carriageway closure

Category: Road Maintenance
View update

M1 southbound Jct 9 to Jct 8 lane 1, 2 and 3 closure (MP 46/3 to 45/1)

Cleared Roadworks National Highways
St Albans M1 · M1 Southbound Between J10 And J9

Cleared 2 days 8 hours ago

Started 11 Jun 2026, 21:00 Ended 12 Jun 2026, 03:10

M1 southbound Jct 9 to Jct 8 lane 1, 2 and 3 closure (MP 46/3 to 45/1)

Category: Road Maintenance
View update

M1 northbound Jct 6A to Jct 9 lane 4 closure (MP 36/8 to 38/9)

Cleared Roadworks National Highways
St Albans A414 · A414 Westbound Between A405 And M1

Cleared 2 days 11 hours ago

Started 11 Jun 2026, 20:49 Ended 12 Jun 2026, 00:00

M1 northbound Jct 6A to Jct 9 lane 4 closure (MP 36/8 to 38/9)

Category: Construction Work
View update