Guildford A3 Weekend Closures: Full Diversion Route Explained

Why the Dennis Roundabout Matters to Guildford Drivers

For anyone who regularly commutes through Guildford, the Dennis Interchange near Ladymead is one of those bits of infrastructure you barely think about until it's not working properly. This two-tier gyratory has quietly carried thousands of vehicles a day between the A3 and the town centre for 45 years, linking residents from as far afield as Woking, Dorking, and the Horsleys into Guildford's retail and business heart. National Highways engineers have been working since May to shore up the ageing concrete bridge supports and bearings, and now attention turns to the bridge deck itself, along with waterproofing and resurfacing works. It's essential maintenance rather than emergency repair, but it does mean disruption. The A3 will close southbound between the Dennis and Stoke interchanges from 9pm Friday, July 10, until 6am Monday, July 13, with the northbound closure following the weekend after. Local residents who rely on this stretch for shopping trips, school runs, or simply getting to work should factor in the closure now rather than discovering it at the roundabout itself.

The Diversion Route and What to Expect

National Highways has published a full diversion route through Guildford town centre for drivers affected by the closures. Traffic will be directed along Midleton Road, round the Cathedral Roundabout, onto The Chase, past Guildford railway station and The Friary shopping centre, before heading up Woodbridge Road back to Ladymead. It sounds straightforward on paper, but anyone who knows Guildford's town centre traffic patterns will recognise this route can get congested quickly, especially with weekend shoppers and event traffic layered on top. Delays of up to 30 minutes are expected, and satnav systems may try to route drivers down alternative back roads, which locals will want to think twice about given the narrow residential streets involved. Project Manager Nick Axford has been candid that this is complex, phased work on a structure that's been carrying traffic since the 1970s. Businesses along the diversion route, including those near The Friary and Woodbridge Road, should brace for extra footfall and traffic noise, while residents nearby may notice increased congestion during the affected evenings and weekends.

What Comes Next and How to Plan Ahead

This isn't a one-off inconvenience — the lane closure on the roundabout itself is expected to remain in place until December, with further overnight closures of both the roundabout and the A3 planned throughout the rest of the year. For residents and commuters across the wider area, from Guildford itself to Woking, Dorking, and East Horsley, it's worth building extra journey time into weekend plans for the foreseeable future, particularly if travelling late evening or early morning when closures take effect. Locals are advised to check National Highways' updates before setting off, especially during the two specific closure weekends. If you're planning home improvements during this period, such as bathroom fitters or a bathroom refurbishment project, it may be worth scheduling deliveries or tradesperson visits outside the affected closure windows to avoid delays affecting van arrivals. Guildford Borough Council and local business groups have been kept informed, and further updates are expected as the works progress. Keep an eye on local news channels and council communications for the latest on this evolving, but ultimately necessary, infrastructure project.

Source: Full diversion route for upcoming weekend closure on the Guildford A3