Postcode district SG3
Road Closures in SG3 Today
Live road closure and roadworks information for the SG3 postcode district, covering Knebworth, Woolmer Green, Datchworth, North Hertfordshire. Permit details are refreshed from official roadworks and highway data.
100
Live local disruptions
206
Active postcodes
7,127
District population
East of England
UK region
Live closures near SG3
| Status | Directions | Share | |
|---|---|---|---|
| roadworks — ST GEORGES WAY, STEVENAGE Luton | RoadworksMediumActiveActive NowStarted: 1 May 2026 07:00 Ends: 4 Nov 2027 16:00 | ||
| roadworks — ST GEORGES WAY, STEVENAGE Luton | RoadworksMediumActiveActive NowStarted: 1 May 2026 07:00 Ends: 4 Nov 2027 16:00 | ||
| roadworks — BLYTHWAY, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 31 May 2026 23:00 Ends: 20 Aug 2026 23:00 | ||
| roadworks — SLOANSWAY, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 31 May 2026 23:00 Ends: 22 Oct 2026 23:00 | ||
| roadworks — SLOANSWAY, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 31 May 2026 23:00 Ends: 22 Oct 2026 23:00 | ||
| roadworks — BURWELL ROAD, STEVENAGE Luton Major (PAA) | RoadworksMediumActiveActive NowStarted: 3 Jun 2026 23:00 Ends: 4 Dec 2026 | ||
| roadworks — BURWELL ROAD, STEVENAGE Luton | RoadworksMediumActiveActive NowStarted: 3 Jun 2026 23:00 Ends: 4 Dec 2026 | ||
| roadworks — THE VALLEY GREEN, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 14 Jun 2026 23:00 Ends: 18 Dec 2026 | ||
| roadworks — THE VALLEY GREEN, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 14 Jun 2026 23:00 Ends: 18 Dec 2026 | ||
| roadworks — SHEPHALL WAY, STEVENAGE Luton Major | RoadworksMediumActiveActive NowStarted: 28 Jun 2026 23:00 Ends: 18 Dec 2026 | ||
| roadworks — MOORS WALK, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 21 Jul 2026 23:00 Ends: 24 Sept 2026 23:00 | ||
| roadworks — GUNNELS WOOD ROAD, STEVENAGE Luton Major | RoadworksMediumActiveActive NowStarted: 24 Jul 2026 23:00 Ends: 29 Sept 2026 23:00 | ||
| roadworks — BARON COURT, STEVENAGE Luton Major (PAA) | RoadworksMediumActiveActive NowStarted: 26 Jul 2026 23:00 Ends: 13 Aug 2026 23:00 | ||
| roadworks — WATCHLYTES, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 26 Jul 2026 23:00 Ends: 22 Aug 2026 23:00 | ||
| roadworks — BARNDICOTT, WELWYN GARDEN CITY Luton Standard | RoadworksMediumActiveActive NowStarted: 26 Jul 2026 23:00 Ends: 13 Aug 2026 23:00 | ||
| roadworks — GROVE MEADOW, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 26 Jul 2026 23:00 Ends: 21 Aug 2026 23:00 | ||
| roadworks — HALDENS, WELWYN GARDEN CITY Luton Major | RoadworksMediumActiveActive NowStarted: 26 Jul 2026 23:00 Ends: 1 Oct 2026 23:00 | ||
| roadworks — MARSHGATE, STEVENAGE Luton Immediate - urgent | RoadworksMediumActiveActive NowStarted: 28 Jul 2026 08:31 Ends: 13 Aug 2026 22:00 | ||
| roadworks — PARK PLACE, STEVENAGE Luton Immediate - urgent | RoadworksMediumActiveActive NowStarted: 28 Jul 2026 08:46 Ends: 13 Aug 2026 22:00 | ||
| roadworks — BARON COURT, STEVENAGE Luton | RoadworksMediumActiveActive NowStarted: 2 Aug 2026 23:00 Ends: 20 Aug 2026 23:00 | ||
| roadworks — BARON COURT, STEVENAGE Luton | RoadworksMediumActiveActive NowStarted: 2 Aug 2026 23:00 Ends: 16 Aug 2026 23:00 | ||
| roadworks — BALDWINS, WELWYN GARDEN CITY Luton | RoadworksMediumActiveActive NowStarted: 2 Aug 2026 23:00 Ends: 26 Aug 2026 23:00 | ||
| roadworks — WALKERN ROAD, STEVENAGE Luton skips | RoadworksMediumActiveActive NowStarted: 3 Aug 2026 Ends: 17 Aug 2026 | ||
| closure — COWARDS LANE, CODICOTE Luton | Lane ClosureMediumActiveActive NowStarted: 3 Aug 2026 08:30 Ends: 30 Aug 2026 17:00TTROTemporary Traffic Regulation OrderA legal order issued by the highway authority to temporarily restrict or close the road. Required when works affect the public's right to use the road. | ||
| roadworks — WATERSIDE, WELWYN GARDEN CITY Luton Major (PAA) | RoadworksMediumActiveActive NowStarted: 3 Aug 2026 08:30 Ends: 4 Sept 2026 14:30 |
Showing 25 of 100 closures
Local places in SG3
This district page helps drivers check disruption information around the local places served by the SG3 postcode district.
KnebworthWoolmer GreenDatchworthNorth Hertfordshire
Nearby postcode districts
Road Closures near you in SG3 postcode district
Road Closures UK shows all 100 current and planned road closures near you in SG3 postcode district, sourced from Street Manager, National Highways, and other official UK government systems. Every record includes the full permit reference number, the promoting organisation carrying out the works, the highway authority responsible, and the scheduled start and end dates — the complete official record for every road closure in SG3 postcode district.
Live closure details
Open a closure for its permit reference, exact timings and affected-road information.
- roadworks — ST GEORGES WAY, STEVENAGE
- roadworks — ST GEORGES WAY, STEVENAGE
- roadworks — BLYTHWAY, WELWYN GARDEN CITY
- roadworks — SLOANSWAY, WELWYN GARDEN CITY
- roadworks — SLOANSWAY, WELWYN GARDEN CITY
- roadworks — BURWELL ROAD, STEVENAGE
- roadworks — BURWELL ROAD, STEVENAGE
- roadworks — THE VALLEY GREEN, WELWYN GARDEN CITY
- roadworks — THE VALLEY GREEN, WELWYN GARDEN CITY
- roadworks — SHEPHALL WAY, STEVENAGE
Frequently Asked Questions
This page shows all current and planned road closures in SG3 postcode district, updated every 15 minutes from official UK government data. Each closure includes the full permit reference number, promoting organisation, highway authority, and scheduled start and end dates — data not shown on Google Maps or Waze.
Road Closures UK shows all active and planned road closures in SG3 postcode district on this page. Data is sourced from Street Manager, National Highways, and other official UK government systems. You can sign up for free email alerts to be notified of new closures in SG3 postcode district as soon as they are added.
Road closure data for SG3 postcode district comes from official UK government sources: Street Manager (Department for Transport — councils and utility companies), National Highways Transport Data Feeds (motorways and major A-roads), D-TRO (Digital Traffic Regulation Orders), Traffic Scotland, Traffic Wales, and TrafficWatchNI. All data is published under the Open Government Licence v3.0.
Road Closures UK shows road closures in SG3 postcode district up to 90 days in advance. Street Manager permits are submitted by councils and utility companies before work begins, so you can often see closures weeks or months ahead of the start date.
Yes. Enter your email address in the alert signup box on this page and we will notify you by email when new closures are added near SG3 postcode district. No account required — unsubscribe at any time using the link in any alert email.
A road closure means the road is completely blocked to all traffic. Roadworks means work is taking place on or near the road, which may cause lane restrictions, temporary traffic lights, or delays — but the road remains open. Both types are shown on Road Closures UK with their permit reference, start date, and end date.
Nearby Road Closures
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Postcode district location, locality and population context is derived from public UK postcode geography data. Live disruption records are provided by Road Closures UK’s official data sources.