Standing water at Hermitage Bridge and hidden pothole damage
The A23 London Road is the spine of Norbury and carries constant bus traffic, frequent signals and long queues towards Thornton Heath Pond. Roads that busy get patched repeatedly, and patched surfaces around bus stops and signal lines are rarely flat. Add Norbury Brook, which runs under London Road at Hermitage Bridge and can rise quickly after heavy rain, and you have the local hazard: water across the road hides whatever is beneath it, and the hole you cannot see is the one you hit at full speed.
A hard pothole impact does not always announce itself. The steering may feel the same at the time, with the only clue being a steering wheel that now sits a degree or two off centre, or a car that pulls gently left on a flat road. The damage underneath can be a shifted track rod, a bent steering arm, or a subframe moved on its bolts. Meanwhile the tyre is quietly scrubbing away on one shoulder, and that bill is often larger than the adjustment would have been.
The side streets add the other half of the story. Residential roads around Pollards Hill, the Norbury Cottage Garden Estate and the slopes below Pollards Hill Park are mostly 20mph, narrow and parked on both sides, with school-run traffic twice a day in term time. That is kerb-strike territory. When a car comes in after an impact, we look specifically for play in the joints, uneven caster between the two sides and a rear thrust angle that has moved, because those are the signatures of a hit rather than slow drift.
The quickest route is London Road south to Thornton Heath Pond, the A23 to the Lombard roundabout, then the A236 west across Mitcham Common and south on Carshalton Road into Hackbridge, roughly 18 minutes. If the car is not pulling straight enough to be comfortable on the A23, collection and delivery can be arranged instead.

