B4558 road

The B4558 road is a road in Powys, central Wales, with a total length of 12 miles (19 km). It begins at a junction with the A4077 road across the Usk bridge from Crickhowell and runs northwest up the southern side of the Usk valley to a junction with the A40 road 3.5 km east of Brecon. En route from Crickhowell it passes through the villages of Llangynidr, Talybont-on-Usk, and Pencelli. It is closely followed over this section by the Monmouthshire and Brecon Canal which it crosses six times. River crossings include those of the Nant Cleisfer and Afon Crawnon at Llangynidr, the Caerfanell at Talybont and the Nant Menasgin between Pencelli and Llanfrynach. It crosses the Usk itself by the historic Lock Bridge just south of the village of Groesffordd, east of Brecon.^[1]

B4558
Route information
Length	30.5 mi (49.1 km)
Major junctions
Southeast end	A4077 road near Crickhowell
Northwest end	A40 road near Groesffordd
Location
Country	United Kingdom
Road network
Roads in the United Kingdom Motorways A and B road zones

Further reading

Dorey, Martin. "The 10 best road trips in the UK". The Times. ISSN 0140-0460. Retrieved 17 March 2023.