M23 closed northbound overnight 10 to 13 August, A283 night works in Storrington from the 17th, Friday Carfax closures, and the live maps that show what's dug up today.

Two authorities dig up the roads around Horsham, and knowing which is which saves you searching the wrong website. West Sussex County Council looks after most local roads, from the A24 bypass to the village lanes; National Highways runs the M23, A23 and A27 (who does what). This page covers what is closed in and around the district right now, the long-running A29 problem at Pulborough, and the permanent facts, key routes, station parking and the park and ride, that outlast any one set of cones, with the live maps to check on the day.

Diagram of the key routes around Horsham: the A24 running north-south past the town, the A264 east to Crawley and the M23, the A281 through the town centre towards Guildford and Henfield, the A272 running east-west across the district, and the A29 through Billingshurst and Pulborough, marked with August 2026 works: M23 overnight closures, A283 Storrington night works and the A29 Church Hill temporary lights
Chart by Horsham Daily.

Closed this month (checked 7 August 2026)

  • M23 northbound, J11 Pease Pottage to J9 Gatwick: full overnight closures, 9pm to 6am, on the nights of Monday 10 to Thursday 13 August for maintenance (National Highways closure report). If you use the M23 north for an early Gatwick run, go via the A23 or leave after 6am.
  • A23 at Bolney to Hickstead: overnight carriageway closures, 8pm to 6am, on the same nights for bridge works, southbound at Bolney Monday to Thursday (same report).
  • Storrington: the A283 stretch of Manleys Hill closes overnight, 7pm to 6am, from Monday 17 August for up to five nights while FM Conway rebuilds failed manhole covers between Nightingale Lane and School Hill (WSCC notice via Storrington Parish Council).
  • A29 Church Hill, Pulborough: closed Monday 10 August, 9.30am to 2pm, between the A283 junction and Church Place, for the annual inspection of the temporary traffic lights (WSCC A29 Pulborough page).
  • The Carfax closes to traffic every Friday evening in August, 5.30pm to 8.30pm (Blackhorse Way to Copnall Way, including Swan Yard) for the summer events programme (council road closures page).

The A29 at Pulborough: the district’s longest-running road problem

The temporary lights on Church Hill are not ordinary roadworks. A landslip on 28 December 2022 left the A29 running on a single alternate-flow lane, and it has stayed that way while the county council pursued the landowners over the trees and land above the slip. The landowners appealed the council’s statutory notices; at a hearing on 7 and 8 January 2026 those appeals were dismissed, which finally cleared the legal path towards a permanent repair (WSCC A29 Pulborough page). Until that repair happens, expect the lights, occasional inspection closures like the one above, and, whenever the road shuts fully, the long signed diversion via the A283 through Storrington, the A24 and the A272 through Billingshurst.

Bigger schemes on the horizon

The next generation of works around Horsham will come from development. The West of Ifield scheme on the Crawley border includes a full application for its first-phase roads, the Crawley Western Multi-Modal Corridor with access from Charlwood Road; the application is still awaiting decision, and our Horsham planning news page tracks it. In Rusper, the 43-home Millfields Farm site comes with a new access on East Street, crossing improvements and a wider 30mph zone, construction date not yet fixed (Rusper Parish Council notice). The Broadbridge Heath junction rebuild, Newbridge roundabout and the downgraded old bypass, finished in 2021 and is the settled state of the west side, not pending work.

The evergreen facts: routes, station parking, park and ride

The key routes. The A24 carries north-south traffic past the town between Dorking and Worthing; the A264 links Horsham to Crawley and M23 junction 11; the A281 threads through the town centre towards Guildford one way and Henfield the other; the A272 crosses the district east-west; and the A29 takes the Billingshurst corridor towards Bognor. When any one of them fails, its traffic lands on the others, which is why one overnight M23 closure can make Roffey busy at midnight.

Station parking. The car park at Horsham station is run by APCOA for Southern, open 24 hours, roughly 200 spaces, from £5.10 a day, free for Blue Badge holders (National Rail, APCOA). Train times, season costs and the last trains home are on the trains to London page.

Hop Oast park and ride. Still running, seven days a week, and cheap: Metrobus routes 23 and 98 serve the site off the B2237 Worthing Road (RH13 0AR), with a £2.70 day ticket covering up to five people, or £1.80 singles before 9am on weekdays; the site opens 4am to 9pm daily with a 2-metre height limit, and the last buses back from Horsham bus station are 10.12pm (route 23) and 11.42pm (route 98) Monday to Saturday (Metrobus). For a Saturday in town it comfortably undercuts the town centre car parks.

How to check what is dug up today

Frequently asked questions

Why are there temporary traffic lights on the A29 at Pulborough?

A landslip on 28 December 2022 closed one lane of Church Hill, and the road has run on alternate-flow lights since. The legal fight over the land above the slip ended in January 2026 when the landowners’ appeals were dismissed, opening the way to a permanent fix (WSCC).

Is the M23 closed at night this week?

On the nights of Monday 10 to Thursday 13 August 2026, the northbound carriageway is closed from J11 (Pease Pottage) to J9 (Gatwick), 9pm to 6am, for maintenance (National Highways).

Where do I find live roadworks around Horsham today?

The county council feeds its works into the one.network West Sussex map; National Highways publishes a daily closure report for the M23, A23 and A27.

Does Horsham have a park and ride?

Yes, Hop Oast, south of town off the Worthing Road: Metrobus routes 23 and 98, seven days a week, £2.70 for a day ticket covering up to five people (Metrobus).

Sources

Roadworks change week to week. The evergreen sections above outlast any one scheme; check the live maps on the day you travel. Checked against the sources above on 7 August 2026.