The B3430 is a wooded B-road through the southern suburbs of Bracknell. The road was originally unclassified but came to the area in the 1970s before gaining its present length in the 1980s.
The road starts at a signalised crossroads, completed in early 2019, with the A329 in the Bracknell suburb of Martin's Heron, to the east of the town. Previously this junction was a roundabout. It heads vaguely southwards through the suburbs along a road liberally scattered with roundabouts, including a diversion to the west to go over the railway line. Presently we reach the A322 at a signalised crossroads. This marks the original eastern end of the B3430.
For the remainder of the road we head west along the semi-rural Nine Mile Ride, which is only 7 miles long - and the B3430 ends before reaching its far end anyway. We pass the Coral Reef swimming pool and The Lookout Discovery Centre before entering the forest. Signs advertise how dangerous this road is: it is a series of long straights interspersed with sharp corners and with some large houses set back to complicate things. We pass Caesar's Camp, actually an Iron Age hill fort, which is accessible by road via The Lookout.
After crossing the A3095 at a roundabout we skirt the northern edge of Crowthorne and as such there are houses fronting the road. There are more roundabouts connecting us with that village and also the Transport Research Laboratory. After passing Heath Lake and the Ravenswood Village for people with learning disabilities we go over the Reading to Guildford railway line and meet the A321, crossing it at a double roundabout.
The road is now fully residential once more as it heads west through Wick Hill. Presently a mini-roundabout is reached where the B3430 ends on the B3016, although Nine Mile Ride continues ahead as an unclassified road.