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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 J8 - 9
Period 19-Apr-2017 to 29-Apr-2017
Effect Slight (less than 10 mins)
Length 3592 metres
Description Lane closure northbound 2200 - 0600 hrs due to signs maintenance
Location Map: View roadworks location on Google map
509287E,213873N (51.8123450042, -0.414488397156)
M1, Hertfordshire
Location J9 Exit slip
Period 21-Apr-2017 to 29-Apr-2017
Effect Moderate (10 - 30 mins)
Length 606 metres
Description Exit slip closure northbound 2200 - 0600 hrs due to signs maintenance
Location Map: View roadworks location on Google map
509199E,214429N (51.8173598582, -0.415589253609)
M1, Hertfordshire
Location J9 Exit slip
Period 20-Apr-2017 to 29-Apr-2017
Effect Moderate (10 - 30 mins)
Length 729 metres
Description Exit slip closure southbound 2200 - 0600 hrs due to signs maintenance
Location Map: View roadworks location on Google map
509197E,214986N (51.8223668852, -0.41544259617)
M1, Hertfordshire
Location Jn 5 to Jn 6
Period 05-May-2017 to 06-May-2017
Effect Slight (less than 10 mins)
Length 701 metres
Description 2300-0500hrs Lane 1 closure Northbound for electrical works
Location Map: View roadworks location on Google map
512590E,198658N (51.6749295059, -0.371515532039)
M25, Hertfordshire
Location Jn 18 to Jn 17
Period 24-Apr-2017 to 26-Apr-2017
Effect Slight (less than 10 mins)
Length 835 metres
Description 2200-0530hrs, lane 4, 3 and 2 closure, anticlockwise for HS2 enabling works.
Location Map: View roadworks location on Google map
503828E,195025N (51.6439601463, -0.499278276936)
M25, Hertfordshire
Location Jct 17 Anticlockwise entry slip
Period 24-Apr-2017 to 26-Apr-2017
Effect Moderate (10 - 30 mins)
Length 429 metres
Description 2200-0530hrs, full slip road closure, anticlockwise for HS2 enabling works. Diversion via junction 17, A412 Denham way, A40, M40 junction 1 to M25 junction 16.
Location Map: View roadworks location on Google map
503024E,193972N (51.6346423664, -0.51120504832)
M25, Hertfordshire
Location J25 to J24
Period 02-May-2017 to 20-May-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 Jn 22 to Jn21A
Period 28-Apr-2017 to 04-May-2017
Effect Slight (less than 10 mins)
Length 3538 metres
Description 2200-0530hrs Lane 2, 3 and 4 closure anticlockwise for joint sealing works
Location Map: View roadworks location on Google map
515364E,202594N (51.7097448497, -0.330109200918)
M25, Hertfordshire
Location Jct 23 Clockwise exit slip
Period 02-May-2017 to 03-May-2017
Effect Moderate (10 - 30 mins)
Length 597 metres
Description 2200hrs - 0500hrs Exit slip closure clockwise for cyclic works. Diversion to Jct 24 and return
Location Map: View roadworks location on Google map
522216E,200415N (51.6887091211, -0.231739944608)
M25, Hertfordshire
Location Jct 23 clockwise entry
Period 02-May-2017 to 03-May-2017
Effect Moderate (10 - 30 mins)
Length 246 metres
Description 2200hrs - 0500hrs, total slip closure, clockwise, for cyclic works, traffic diverted to Jct 22 and return
Location Map: View roadworks location on Google map
522855E,199984N (51.6846958537, -0.222651219731)
M25, Hertfordshire
Location Jn 22 to Jn 24
Period 02-May-2017 to 03-May-2017
Effect Slight (less than 10 mins)
Length 5160 metres
Description 2200hrs - 0500hrs, lanes 1,2 closure, clockwise, for cyclic works
Location Map: View roadworks location on Google map
523701E,199977N (51.6844471742, -0.210420992894)
M25, Hertfordshire
Location Jn 23 to Jn 25
Period 03-May-2017 to 04-May-2017
Effect Slight (less than 10 mins)
Length 3742 metres
Description 2200hrs - 0500hrs, lanes 1,2 closure, clockwise for cyclic works
Location Map: View roadworks location on Google map
527320E,200336N (51.6868646811, -0.157962778164)
M25, Hertfordshire
Location Jct 24 clockwise entry
Period 03-May-2017 to 04-May-2017
Effect Moderate (10 - 30 mins)
Length 243 metres
Description 2200hrs - 0500hrs, total slip closure, clockwise, for cyclic works, diversion to Jct 23 and return
Location Map: View roadworks location on Google map
526695E,200364N (51.6872577343, -0.166989972207)
M25, Hertfordshire
Location Jn 21A to Jn 21
Period 24-Apr-2017 to 26-Apr-2017
Effect Moderate (10 - 30 mins)
Length 577 metres
Description 2200-0530hrs Carriageway closure Anticlockwise for electrical works. Diversion for M25 Traffic via exit slip, roundabout and entry slip. Diversion for M1 Northbound traffic via the A405 Westbound to M1 Jct 6
Location Map: View roadworks location on Google map
512878E,202939N (51.7133516852, -0.365966268)
M25, Hertfordshire
Location M25 Clockwise link to M1 Northbound
Period 25-Apr-2017 to 28-Apr-2017
Effect Moderate (10 - 30 mins)
Length 1029 metres
Description 2200-0530hrs Link road closure clockwise to M1 Northbound for electrical works. Diversion via Jct 21A, A405 Westbound to M1 Jct 6
Location Map: View roadworks location on Google map
511295E,203125N (51.7153399407, -0.388812682814)
M25, Hertfordshire
Location M1 Southbound link to M25 Anticlockwise
Period 28-Apr-2017 to 06-May-2017
Effect Moderate (10 - 30 mins)
Length 1244 metres
Description 2200-0530hrs Link road closure Southbound to M25 Anticlockwise for electrical works. Diversion via M1 Jct 6, A405 Eastbound to M25 Jct 21A
Location Map: View roadworks location on Google map
511473E,203095N (51.7150349287, -0.386246526425)
M25, Hertfordshire
Location M1 Southbound link to M25 clockwise
Period 28-Apr-2017 to 06-May-2017
Effect Moderate (10 - 30 mins)
Length 1437 metres
Description 2200-0530hrs Link road closure Southbound to M25 clockwise for electrical works. Diversion via M1 Jct 6, A405 Eastbound to M25 Jct 21A
Location Map: View roadworks location on Google map
511988E,203277N (51.7165682445, -0.378735760433)
M25, Hertfordshire
Location Jn 25 to Jn 24 (B8)
Period 04-May-2017 to 12-May-2017
Effect Slight (less than 10 mins)
Length 2874 metres
Description 2200-0530 hrs & 2300-0600 hrs, Lane 1 2 closure, clockwise for ROTTM Hardwiring works
Location Map: View roadworks location on Google map
529006E,200477N (51.6877470043, -0.133531834121)
A1M, Hertfordshire
Location Jn 4 to Jn 2
Period 03-May-2017 to 06-May-2017
Effect Moderate (10 - 30 mins)
Length 5016 metres
Description 22:00-0500hrs, carriageway closure southbound for tunnel maintenance/washing/sweeping Diversion via A1001 Comet Way and Roehyde Way to Jct 2
Location Map: View roadworks location on Google map
521585E,208464N (51.7611898585, -0.238053921578)
A1M, Hertfordshire
Location Jn 3 to Jn 4
Period 04-May-2017 to 07-May-2017
Effect Moderate (10 - 30 mins)
Length 3730 metres
Description 22:00-0500hrs, Carriageway closure northbound for tunnel maintenance/washing/sweeping Diversion via A1001 Comet Way to Jct 4
Location Map: View roadworks location on Google map
521834E,208965N (51.7656386335, -0.234271681938)
A1M, Hertfordshire
Location Jct 4 Southbound entry slip
Period 03-May-2017 to 06-May-2017
Effect Moderate (10 - 30 mins)
Length 400 metres
Description 22:00-0500hrs, Entry slip road closure southbound for tunnel maintenance. Diversion to A1001 to Jct 2
Location Map: View roadworks location on Google map
522627E,210202N (51.7765833461, -0.222347903792)
A1M, Hertfordshire
Location Jn 3 to Jn 4
Period 05-May-2017 to 06-May-2017
Effect Slight (less than 10 mins)
Length 3730 metres
Description 23:00 - 05:00 hours lane 3 closure northbound to provide safety lane for cross passage door maintenance in conjunction with Southbound Carriageway closure
Location Map: View roadworks location on Google map
521834E,208965N (51.7656386335, -0.234271681938)
A1M, Hertfordshire
Location Jct 3 Northbound entry slip
Period 04-May-2017 to 07-May-2017
Effect Moderate (10 - 30 mins)
Length 367 metres
Description 22:00-0500hrs, Entry slip road closure, northbound for tunnel maintenance. Diversion via A1001 to Jct 4
Location Map: View roadworks location on Google map
521197E,207654N (51.7539937955, -0.243956260157)
A1M, Hertfordshire
Location Jn 1 to Jn 2
Period 28-Apr-2017 to 29-Apr-2017
Effect Slight (less than 10 mins)
Length 2587 metres
Description 2300-0500hrs Lane 1 closure northbound for routine maintenance
Location Map: View roadworks location on Google map
522830E,201350N (51.6969787737, -0.222531741275)
A1M, Hertfordshire
Location Jn 2 to Jn 4
Period 24-Apr-2017 to 25-Apr-2017
Effect Slight (less than 10 mins)
Length 3301 metres
Description 2200-0500hrs Lane 1 closure northbound for routine maintenance
Location Map: View roadworks location on Google map
521466E,206654N (51.7449476378, -0.240410027754)
A1M, Hertfordshire
Location Jct 3 Northbound entry slip
Period 24-Apr-2017 to 26-Apr-2017
Effect Moderate (10 - 30 mins)
Length 465 metres
Description 2200-0500 hrs Entry slip closure northbound for Routine maintenance. Diversion via A1001 Comet Way to A1M Junction 4
Location Map: View roadworks location on Google map
521207E,207702N (51.75442305, -0.243794703093)
A1M, Hertfordshire
Location Jct 4 Northbound exit slip
Period 26-Apr-2017 to 27-Apr-2017
Effect Moderate (10 - 30 mins)
Length 373 metres
Description 2200-0500 hrs Exit slip closure northbound for Routine maintenance. Diversion via Jct 6 and return
Location Map: View roadworks location on Google map
522576E,210210N (51.7766664219, -0.223084012477)
A1M, Hertfordshire
Location Jct 5 Northbound entry slip
Period 26-Apr-2017 to 27-Apr-2017
Effect Moderate (10 - 30 mins)
Length 801 metres
Description 2200-0500 hrs Entry slip closure northbound for Routine maintenance. Diversion via B197, A1000 to Jct 6
Location Map: View roadworks location on Google map
522297E,212774N (51.799772068, -0.226222478898)
A1M, Hertfordshire
Location Jct 4 Northbound entry slip
Period 26-Apr-2017 to 27-Apr-2017
Effect Moderate (10 - 30 mins)
Length 407 metres
Description 2200-0500 hrs Entry slip closure northbound for Routine maintenance. Diversion via Jct 3 and return
Location Map: View roadworks location on Google map
522680E,210636N (51.78047241, -0.221426591593)
A1M, Hertfordshire
Location Jn 4 to Jn 6
Period 26-Apr-2017 to 27-Apr-2017
Effect Slight (less than 10 mins)
Length 3930 metres
Description 2200-0500hrs Lane 1 closure northbound for Routine maintenance
Location Map: View roadworks location on Google map
522403E,212359N (51.7960189647, -0.224832385361)
A1M, Hertfordshire
Location Jn 5 to Jn 6
Period 27-Apr-2017 to 28-Apr-2017
Effect Slight (less than 10 mins)
Length 1663 metres
Description 2200-0500hrs Lane 1 closure northbound for Routine maintenance
Location Map: View roadworks location on Google map
522740E,214746N (51.8173987155, -0.219102036162)
A1M, Hertfordshire
Location Jct 6 Northbound exit slip
Period 27-Apr-2017 to 28-Apr-2017
Effect Moderate (10 - 30 mins)
Length 428 metres
Description 2200-0500hrs Exit slip road closure northbound for Routine maintenance. Diversion via Jct 7 and return
Location Map: View roadworks location on Google map
523284E,215406N (51.823210791, -0.210978002638)
A1M, Hertfordshire
Location Jct 1 Northbound entry slip
Period 02-May-2017 to 03-May-2017
Effect Moderate (10 - 30 mins)
Length 925 metres
Description 2200-0500hrs Entry Slip closure Northbound for electrical works. Diversion via A1 South to A5135 Borehamwood and return
Location Map: View roadworks location on Google map
522749E,200735N (51.6914689484, -0.223919722408)
A1M, Hertfordshire
Location Jn 6 to Jn 4
Period 02-May-2017 to 03-May-2017
Effect Slight (less than 10 mins)
Length 1226 metres
Description 22:00hrs to 05:00hrs Lane 1 closure southbound for routine maintenance
Location Map: View roadworks location on Google map
522796E,214772N (51.8176200912, -0.218280707708)
A1M, Hertfordshire
Location Jct 6 Southbound entry slip
Period 02-May-2017 to 03-May-2017
Effect Moderate (10 - 30 mins)
Length 711 metres
Description 22:00hrs to 05:00hrs Entry Slip closure southbound for routine maintenance. Diversion via Jct 7 and return
Location Map: View roadworks location on Google map
523289E,215315N (51.8223918138, -0.210937891375)
A1M, Hertfordshire
Location Jct 1 Northbound entry slip
Period 28-Apr-2017 to 29-Apr-2017
Effect Moderate (10 - 30 mins)
Length 476 metres
Description 2200-0500 hrs Entry slip closure northbound for Routine maintenance. Diversion via A5135 Borehamwood and return
Location Map: View roadworks location on Google map
522669E,200534N (51.6896798709, -0.22514733799)