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Search and view all scheduled roadworks in Hertfordshire. Updated each weekday, it contains records of lane closures for the next two weeks in and around Hertfordshire. The information in this document is unedited data from the Highways Agency's database of Scheduled Road Works and is offered as an aid to journey planning.

Planned and current roadworks in Hertfordshire

M1, Hertfordshire
Location Jct 6 northbound entry slip
Period 22-Jun-2017 to 24-Jun-2017
Effect Moderate (10 - 30 mins)
Length 282 metres
Description 2200-0500hrs Entry Slip closure northbound for electrical works. Diversion via M25 Jct 21a, M1 Jct 6 to Jct 5 and return
Location Map: View roadworks location on Google map
511813E,202290N (51.7077314268, -0.381584915083)
M1, Hertfordshire
Location Jct 6 northbound exit slip
Period 22-Jun-2017 to 24-Jun-2017
Effect Moderate (10 - 30 mins)
Length 259 metres
Description 2200-0500hrs Exit Slip closure northbound for electrical works. Diversion via Jct 8 and return
Location Map: View roadworks location on Google map
511887E,202053N (51.7055863747, -0.380590362055)
M1, Hertfordshire
Location Jn 5 to Jn 6
Period 22-Jun-2017 to 24-Jun-2017
Effect Slight (less than 10 mins)
Length 1049 metres
Description 2200-0500hrs Lane 1 closure Northbound for electrical works
Location Map: View roadworks location on Google map
512027E,201731N (51.7026641091, -0.378668415597)
M1, Hertfordshire
Location J9 Between slips
Period 26-Jun-2017 to 08-Jul-2017
Effect Moderate (10 - 30 mins)
Length 196 metres
Description Lane closure northbound 2000 - 0600 hrs due to developer works
Location Map: View roadworks location on Google map
509680E,210447N (51.7814731282, -0.409873018005)
M1, Hertfordshire
Location J8 - 6
Period 28-Jun-2017 to 29-Jun-2017
Effect Slight (less than 10 mins)
Length 1490 metres
Description Lane closure southbound 2200 - 0500 hrs due to inspection survey
Location Map: View roadworks location on Google map
511238E,204755N (51.7300026828, -0.389116776911)
M25, Hertfordshire
Location J25 to J24
Period 15-Jun-2017 to 23-Jun-2017
Effect Slight (less than 10 mins)
Length 4363 metres
Description 22:00-05:30 hrs, Lane 1,2,3 or Lane 4,3,2 closure, anticlockwise for concrete repairs
Location Map: View roadworks location on Google map
528566E,200307N (51.6863200755, -0.139956802111)
M25, Hertfordshire
Location Jct 19 clockwise exit slip
Period 23-Jun-2017 to 24-Jun-2017
Effect Moderate (10 - 30 mins)
Length 487 metres
Description 2300-0500hrs Exit slip closure clockwise for Routine maintenance. Diversion via Junction 20 and A41 Southbound to Jct 19
Location Map: View roadworks location on Google map
507038E,199132N (51.6802759028, -0.451641061841)
M25, Hertfordshire
Location Jct 22 Anticlockwise exit slip
Period 06-Jul-2017 to 08-Jul-2017
Effect Moderate (10 - 30 mins)
Length 299 metres
Description 22:00hrs to 05:30hrs Exit slip road closure, anticlockwise for electrical works. Diversion to Jct 21a and return
Location Map: View roadworks location on Google map
519197E,203265N (51.7149744451, -0.274423757258)
M25, Hertfordshire
Location Jn 22 to Jn21A
Period 21-Jun-2017 to 01-Jul-2017
Effect Slight (less than 10 mins)
Length 3538 metres
Description 2200-0530 hrs, Lane 1,2,3 or Lane 4,3,2 closure anticlockwise for joint sealing works
Location Map: View roadworks location on Google map
515364E,202594N (51.7097448497, -0.330109200918)
M25, Hertfordshire
Location Jct 22 Clockwise Entry slip
Period 22-Jun-2017 to 23-Jun-2017
Effect Moderate (10 - 30 mins)
Length 181 metres
Description 2200-0500 hrs, Entry slip closure clockwise for Routine maintenance. Diversion via Jct 21a and return
Location Map: View roadworks location on Google map
519060E,203483N (51.7169629532, -0.276331583237)
M25, Hertfordshire
Location J22 clockwise exit slip
Period 22-Jun-2017 to 23-Jun-2017
Effect Moderate (10 - 30 mins)
Length 167 metres
Description 2200-0500 hrs, Junction 22 exit slip total closure, clockwise for Routine maintenance diversion junction 23 and return
Location Map: View roadworks location on Google map
518950E,203373N (51.7159976049, -0.277960874885)
M25, Hertfordshire
Location Jn 21A to Jn 23
Period 22-Jun-2017 to 23-Jun-2017
Effect Slight (less than 10 mins)
Length 4310 metres
Description 2200-0500 hrs, lane 1,2 closure, clockwise for Routine maintenance
Location Map: View roadworks location on Google map
518612E,203182N (51.7143524626, -0.282916762118)
M25, Hertfordshire
Location Jn 23 to Jn 22
Period 27-Jun-2017 to 28-Jun-2017
Effect Slight (less than 10 mins)
Length 3087 metres
Description 2200-0500 hrs, lane 1,2 closure, anti-clockwise for Routine maintenance
Location Map: View roadworks location on Google map
520640E,202337N (51.7063250242, -0.253865602828)
M25, Hertfordshire
Location Jct 22 Clockwise exit slip
Period 22-Jun-2017 to 23-Jun-2017
Effect Moderate (10 - 30 mins)
Length 666 metres
Description 2200-0500hrs, Exit slip closure clockwise for Routine maintenance. Diversion via Jct 23 and return
Location Map: View roadworks location on Google map
518704E,203240N (51.714854309, -0.281565809168)
M25, Hertfordshire
Location Jn 21A to Jn 22
Period 29-Jun-2017 to 04-Jul-2017
Effect Slight (less than 10 mins)
Length 2158 metres
Description 2200-0530hrs Lane 2,3 and 4 closure clockwise for joint sealing
Location Map: View roadworks location on Google map
515532E,202668N (51.7103754097, -0.327653986387)
M25, Hertfordshire
Location Jn 22 to Jn 22
Period 03-Jul-2017 to 07-Jul-2017
Effect Moderate (10 - 30 mins)
Length 1160 metres
Description 22:00-05:30hrs Carriageway closure anticlockwise for resurfacing works. Diversion via Exit slip, B556 Bell Lane and entry slip to rejoin M25
Location Map: View roadworks location on Google map
519078E,203309N (51.7153952016, -0.276130600205)
M25, Hertfordshire
Location Jn 20 to Jn 21
Period 03-Jul-2017 to 06-Jul-2017
Effect Slight (less than 10 mins)
Length 1171 metres
Description 22:00hrs to 05:30hrs Lane 1, 2 and 3 closure clockwise for structure maintenance
Location Map: View roadworks location on Google map
507816E,201602N (51.7023295813, -0.439627956198)
M25, Hertfordshire
Location Jn 21 to Jn 20
Period 26-Jun-2017 to 29-Jun-2017
Effect Slight (less than 10 mins)
Length 2873 metres
Description 22:00hrs to 05:30hrs Lane 1, 2 and 3 closure anticlockwise for bridge maintenance
Location Map: View roadworks location on Google map
508573E,202395N (51.7093117241, -0.428429638736)
M25, Hertfordshire
Location Jn 18 to Jn 19
Period 03-Jul-2017 to 04-Jul-2017
Effect Slight (less than 10 mins)
Length 821 metres
Description 22.00-05.00hrs lane 1 closure clockwise for Hadec camera recertification
Location Map: View roadworks location on Google map
504280E,197394N (51.6651717973, -0.492040844403)
M25, Hertfordshire
Location Jct 20 Clockwise entry slip
Period 03-Jul-2017 to 06-Jul-2017
Effect Moderate (10 - 30 mins)
Length 189 metres
Description 22:00hrs to 05:30hrs Entry slip road closure, clockwise for structure maintenance. Diversion to Jct 18 and return.
Location Map: View roadworks location on Google map
507639E,201412N (51.7006556813, -0.442247238426)
M25, Hertfordshire
Location Jn 23 to Jn 22
Period 05-Jul-2017 to 11-Jul-2017
Effect Slight (less than 10 mins)
Length 830 metres
Description 22:00-05:30hrs Lane 1,2 and 3 closure anticlockwise for resurfacing works
Location Map: View roadworks location on Google map
519562E,203243N (51.7146990108, -0.269149916637)
M25, Hertfordshire
Location Jct 22 Anticlockwise exit slip
Period 05-Jul-2017 to 11-Jul-2017
Effect Moderate (10 - 30 mins)
Length 619 metres
Description 22:00-05:30 hrs Exit slip closure anticlockwise for resurfacing works. Diversion via Junction 21A and return
Location Map: View roadworks location on Google map
519492E,203257N (51.7148397629, -0.270157977826)
M25, Hertfordshire
Location Jct 20 AntiClockwise exit slip
Period 26-Jun-2017 to 29-Jun-2017
Effect Moderate (10 - 30 mins)
Length 212 metres
Description 22:00hrs to 05:30hrs Exit slip road closure anticlockwise for structure maintenance. Diversion to Jct 18 and return.
Location Map: View roadworks location on Google map
507714E,201329N (51.6998952123, -0.441187912927)
M25, Hertfordshire
Location Jn 22 to Jn 20
Period 03-Jul-2017 to 04-Jul-2017
Effect Slight (less than 10 mins)
Length 5242 metres
Description 2200-0500hrs Lane 1,2 closure anti-clockwise for Routine maintenance
Location Map: View roadworks location on Google map
511375E,203102N (51.7151173203, -0.3876623924)
M25, Hertfordshire
Location Jn 21 to Jn 19
Period 04-Jul-2017 to 05-Jul-2017
Effect Slight (less than 10 mins)
Length 4949 metres
Description 2200-0500hrs Lane 1,2 closure anti-clockwise for Routine maintenance
Location Map: View roadworks location on Google map
507758E,201479N (51.7012350937, -0.440505047761)
M25, Hertfordshire
Location Jct 20 Anticlockwise exit slip
Period 04-Jul-2017 to 05-Jul-2017
Effect Moderate (10 - 30 mins)
Length 262 metres
Description 2200-0500hrs Exit slip closure anti-clockwise for Routine maintenance. Diversion via Jct 18 and return
Location Map: View roadworks location on Google map
507757E,201448N (51.700956631, -0.440529095766)
M25, Hertfordshire
Location Jn 20 to Jn 18
Period 05-Jul-2017 to 06-Jul-2017
Effect Slight (less than 10 mins)
Length 2958 metres
Description 2200-0500 hrs. lane 1,2 closure, anti-clockwise for routine Maintenance
Location Map: View roadworks location on Google map
506210E,198336N (51.6732778905, -0.463856002178)
M25, Hertfordshire
Location Jn 18 to Jn 16
Period 28-Jun-2017 to 29-Jun-2017
Effect Slight (less than 10 mins)
Length 3776 metres
Description 2200-0500 hrs, lane 1,2 closure, anti-clockwise for Routine maintenance
Location Map: View roadworks location on Google map
503005E,193977N (51.6346907929, -0.511478044994)
M25, Hertfordshire
Location Jct 17 anticlockwise exit slip
Period 28-Jun-2017 to 29-Jun-2017
Effect Moderate (10 - 30 mins)
Length 536 metres
Description 2200-0500hrs Exit slip closure anticlockwise for Routine maintenance. Diversion via M40 Jct 1 and return
Location Map: View roadworks location on Google map
503426E,194422N (51.6386137383, -0.50526488896)
M25, Hertfordshire
Location Jct 17 anticlockwise entry slip
Period 28-Jun-2017 to 29-Jun-2017
Effect Moderate (10 - 30 mins)
Length 434 metres
Description 2200-0500hrs Entry slip closure anticlockwise for Routine maintenance. Diversion via Jct 18 and return
Location Map: View roadworks location on Google map
503024E,193972N (51.6346423664, -0.51120504832)
M25, Hertfordshire
Location Jn 25 to Jn 23
Period 26-Jun-2017 to 27-Jun-2017
Effect Slight (less than 10 mins)
Length 3665 metres
Description 2200hrs - 0500hrs, lanes 1,2 closure, anti-clockwise for cyclic works
Location Map: View roadworks location on Google map
526290E,200065N (51.6846616854, -0.172954465925)
M25, Hertfordshire
Location Jn 22 to Jn 21A
Period 22-Jun-2017 to 23-Jun-2017
Effect Slight (less than 10 mins)
Length 510 metres
Description 22:00hrs to 05:30hrs Lane 1, 2 and 3 anticlockwise for electrical works.
Location Map: View roadworks location on Google map
513454E,202664N (51.7107636273, -0.357721262503)
M25, Hertfordshire
Location Jct 21A Anticlockwise exit slip
Period 22-Jun-2017 to 23-Jun-2017
Effect Slight (less than 10 mins)
Length 608 metres
Description 22:00hrs to 05:30hrs Lane 1 closure anticlockwise for electrical works.
Location Map: View roadworks location on Google map
512936E,202893N (51.712926537, -0.365141933722)
M25, Hertfordshire
Location Jct 19 Anticlockwise entry slip
Period 23-Jun-2017 to 24-Jun-2017
Effect Moderate (10 - 30 mins)
Length 1809 metres
Description 2300-0500hrs Entry slip closure anti-clockwise for for Routine maintenance. Diversion via A41 to Junction 20
Location Map: View roadworks location on Google map
507730E,199295N (51.6816087515, -0.441584599122)
A1M, Hertfordshire
Location Jn 3 to Jn 4
Period 06-Jul-2017 to 09-Jul-2017
Effect Moderate (10 - 30 mins)
Length 3868 metres
Description 2200-0530hrs Carriageway closure northbound for resurfacing works. Diversion via Northbound exit slip, A1001 Comet Way to Jct 4
Location Map: View roadworks location on Google map
521790E,208863N (51.7647314492, -0.234944806928)
A1M, Hertfordshire
Location Jct 3 Northbound entry slip
Period 06-Jul-2017 to 09-Jul-2017
Effect Moderate (10 - 30 mins)
Length 521 metres
Description 2200-0530hrs Entry Slip closure northbound for resurfacing works. Diversion via A1001 Comet Way to Jct 4
Location Map: View roadworks location on Google map
521213E,207731N (51.7546824002, -0.243697697589)
A1M, Hertfordshire
Location J7 - 8
Period 03-Jul-2017 to 08-Jul-2017
Effect Moderate (10 - 30 mins)
Length 490 metres
Description lane closure northbound 2100 - 0600 hrs due to electrical works
Location Map: View roadworks location on Google map
523047E,223321N (51.8943997311, -0.211596298108)
A1M, Hertfordshire
Location J6 Exit slip
Period 03-Jul-2017 to 08-Jul-2017
Effect Moderate (10 - 30 mins)
Length 502 metres
Description Exit slip closure southbound 2200 - 0530 hrs due to signs erection
Location Map: View roadworks location on Google map
523500E,215955N (51.8280972773, -0.207649316065)
A1M, Hertfordshire
Location J6 - 7
Period 03-Jul-2017 to 08-Jul-2017
Effect Moderate (10 - 30 mins)
Length 1216 metres
Description Lane closure southbound 2130 - 0630 hrs due to drainage works
Location Map: View roadworks location on Google map
524326E,218457N (51.8504008146, -0.194768630371)
A1M, Hertfordshire
Location J6 - 7
Period 03-Jul-2017 to 08-Jul-2017
Effect Moderate (10 - 30 mins)
Length 1214 metres
Description Lane closure northbound 2130 - 0630 hrs due to drainage works
Location Map: View roadworks location on Google map
524309E,218453N (51.8503686512, -0.195016779162)
A405, Hertfordshire
Location Jn M1 to Jn M25
Period 22-Jun-2017 to 24-Jun-2017
Effect Slight (less than 10 mins)
Length 1300 metres
Description 2200-0500hrs, Lane 1 closure northbound for electrical works
Location Map: View roadworks location on Google map
512134E,202451N (51.7091145116, -0.376888865706)