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From:Bridgend (SS903800)
To:Hirwaun (SN949054)
Length:25.5 miles (41 km)
Meets: A4063, B4181, M4, A4063, A4065, B4280, A4093, A4107, B4223, A4058, B4522, A465, A4059
Former Number(s):A4058, A465
Highway Authorities

Bridgend Council • Rhondda Cynon Taf Council

Traditional Counties


Route outline (key)
A4061 Bridgend - Hirwaun



The A4061 is a bit of a dark horse. Superficially, it looks like a typical local road linking lots of former mining communities in South Wales together. However, on closer inspection, it reveals itself to be an excellent driving road, full of fun twists and turns. It's popular with bikers as an alternative route from the M4 to the A465.

Bridgend - Hirwaun

The A4061 starts in the centre of Bridgend, at a junction with the A4063, and immediately crosses the River Ogmore to head northeast out of town. It heads through relatively flat terrain, passing the many industrial estates that have rejuvenated the area, with far too many roundabouts.

Eventually it reaches the M4 at junction 36 and starts the long climb up the Ogmore Valley past seemingly endless rows of terraced houses.
Steep slopes below Craig Ogwr
At times, the abundance of parked cars means it can be quite a challenge to pick your way past them as you head further and further uphill. It eventually clears the urban sprawl and heads towards the top of the mountain with a long sweeping set of hairpins, picking up the A4107 from the west. There are usually an ice-cream van and hundreds of sheep droppings here. After another set of hairpins at the other side, the Rhondda Valley comes into view, and there's a slow and gradual descent downhill. There's a sharp left TOTSO at the bottom (right is the B4223 down the valley), and the road heads under tree cover. After a right-hand bend, there's a TOTSO right and we're back into urban settings again. There's a flat run up over the bridge next to Treorchy Station, and then along to a set of lights in the centre of Treorchy itself, where the A4058 appears on the right.
At the top of the Ogmore Valley, meeting the A4107

The A4061 then snakes its ways along the heart of the Rhondda Fawr, with typical terraced houses on both sides. Then suddenly, there's a swing to the right and we're suddenly climbing uphill back into the mountains. There's another set of hairpins to navigate as the road starts to climb uphill, with the view of Blaenrhondda unfolding far below in the distance. Eventually, we reach the summit, and start to wind our way back down the other side. A final set of hairpins brings us out onto Hirwaun Common, where the road flattens and straightens out to give us a fast run away from the mountains.

After this, there's then a right turn at a roundabout where the road briefly runs east, to meet the A465 and A4059 at a roundabout just outside Hirwaun.


Originally, the A4061 was a dead end at Nant-y-Moel

The mountain sections of this road were built as part of the "Glamorgan Inter Valley Road" project, to alleviate severe unemployment in the valleys of South Wales during the mid 1920s. This explains the TOTSOs in the Rhondda valley as it connected into what were previously side streets.

Originally the A4061 was a dead end route, finishing at the top of Nant-y-Moel. The opening of the Bwlch-y-Clawdd Road on 4 February 1928 took it up to the A4107, which was originally the through route down to Treorchy. The section from Treherbert to Hirwaun, completed in 1929, was initially an extension of the A4058.

In 1935, this section, along with the A4058 west of Treorchy up to Hirwaun was renumbered as A4061 to form a continuous north - south route.

The last section of road heading east into Hirwaun is the pre-bypass A465.

JunctionsRhigos Roundabout • Sarn Interchange
ServicesSarn Park services
Related Pictures
View gallery (27)
A4061 rising towards Craig Ogwr - Geograph - 1019448.jpgFeeding the sheep on the A4061. - Coppermine - 10216.jpgNW boundary of Treorchy - Geograph - 2790134.jpgSheep Feeding Layby - A4107-A4061 Top of Ogmore Valley - Coppermine - 23459.jpgTerraced housing on the A4061, Price Town - Geograph - 475427.jpg
Other nearby roads
BridgendA4060 (Bridgend) • A4063 • A473 • A48 • B4181 • B4265 • B4269 (Bridgend - Llantwit Major) • B4524 • B4622 • E105 (London - Fishguard) • E30 • M4 • T10 (Britain)
TreorchyA4058 • A4107 • A4119 • B4223 • B4512
TreherbertA4058 • B4522
HirwaunA4058 • A4059 • A4066 (Hirwaun - Brecon Beacons) • A465 • B4018 (South Wales) • T76 (Britain)
A4000 • A4001 • A4002 • A4003 • A4004 • A4005 • A4006 • A4007 • A4008 • A4009 • A4010 • A4011 • A4012 • A4013 • A4014 • A4015 • A4016 • A4017 • A4018 • A4019
A4020 • A4021 • A4022 • A4023 • A4024 • A4025 • A4026 • A4027 • A4028 • A4029 • A4030 • A4031 • A4032 • A4033 • A4034 • A4035 • A4036 • A4037 • A4038 • A4039
A4040 • A4041 • A4042 • A4043 • A4044 • A4045 • A4046 • A4047 • A4048 • A4049 • A4050 • A4051 • A4052 • A4053 • A4054 • A4055 • A4056 • A4057 • A4058 • A4059
A4060 • A4061 • A4062 • A4063 • A4064 • A4065 • A4066 • A4067 • A4068 • A4069 • A4070 • A4071 • A4072 • A4073 • A4074 • A4075 • A4076 • A4077 • A4078 • A4079
A4080 • A4081 • A4082 • A4083 • A4084 • A4085 • A4086 • A4087 • A4088 • A4089 • A4090 • A4091 • A4092 • A4093 • A4094 • A4095 • A4096 • A4097 • A4098 • A4099
Earlier iterations: A4008 • A4013 • A4015 • A4020 • A4032 • A4040 • A4041 • A4044 • A4045 • A4047 • A4050 • A4051 • A4052 • A4053 • A4057
A4060 • A4062 • A4066 • A4068 • A4069 • A4071 • A4072 • A4073 • A4074 • A4080 • A4082 • A4084 • A4085(N) • A4085(S) • A4087 • A4090


A4061 Treherbert - Hirwaun

The A4061 from Treherbert, Rhondda to Hirwaun, Cynon

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