Routes

Planner

Features

Updates

App

Get the App

Lakes

Llyn Brianne Dam Wall

Lakes

Llyn Brianne Dam Wall

Highlight • Monument

Llyn Brianne Dam Wall

Name: Llyn Brianne Dam Wall
Rating: 2

Recommended by 7 hikers

Save

Location: Llanfair-Ar-Y-Bryn, Carmarthenshire, South Wales, Wales, United Kingdom

Save

See hikes here

Take Me There

Routes here

Best Hikes to Llyn Brianne Dam Wall

4.4

(16)

hikers

1. Llyn Brianne Dam – Llyn Brianne Dam Wall loop from Rhandirmwyn

13.9km

03:53

270m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

Moderate

4.4

(16)

hikers

2. Llyn Brianne Dam Wall – Twm Siôn Cati's Cave loop from Rhandirmwyn

11.9km

03:24

280m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

Moderate

5.0

(2)

hikers

3. Llyn Brianne Dam – Llyn Brianne Dam Wall loop from Rhandirmwyn

25.2km

07:20

630m

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Navigate

Send to Phone

Save

Hard

Tips

Zoe Evans

October 3, 2022

Llyn Brianne is a man-made lake or reservoir in the headwaters of the River Tywi in Wales. The reservoir was constructed by Wimpey Construction in the late 1960s and early 1970's. In order to regulate the flow in the Tywi to support large potable water abstraction at Nantgaredig in the lower reaches of the river near Carmarthen; providing water to the Felindre water treatment works. The treated water is piped to a large area of South Wales which includes Swansea and Neath and the western periphery of Cardiff. The dam is of crushed rock, larger rock and clay, all materials having been obtained in the area. Llyn Brianne did not exist until the early 1970's, when the river Tywi (Towy), which rises in the Cambrian mountains just 6 miles above Llyn Brianne, and other waterways were dammed to create Wales' second-biggest reservoir by water volume1%qqqq, and South Wales' largest lake.

In the know? Log-in to add a tip for other adventurers!

Details

Informations

Elevation 340 m

Weather

Today

Sunday 28 December

5°C

2°C

-- %

Additional weather tips

Max wind speed: -- km/h

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See hikes here

Take Me There

Location: Llanfair-Ar-Y-Bryn, Carmarthenshire, South Wales, Wales, United Kingdom

Other Popular Places to Check Out

Llyn Brianne Gravel Road

Llyn Brianne Dam

Llyn Brianne Dam Crossing

Devil's Staircase Climb (Abergwesyn)

View of Cynghordy Viaduct

Sugar Loaf

Allt Nantrhydifor Gravel Climb

Irfon Valley Road

Llyn Egnant

Tirabad Military Road

The Sunken Road (View of Claerwen Dam)

RSPB Gwenffrwd-Dinas Nature Reserve

Llyn Brianne Dam Wall

1. Llyn Brianne Dam – Llyn Brianne Dam Wall loop from Rhandirmwyn

2. Llyn Brianne Dam Wall – Twm Siôn Cati's Cave loop from Rhandirmwyn

3. Llyn Brianne Dam – Llyn Brianne Dam Wall loop from Rhandirmwyn

Other Popular Places to Check Out

We value your privacy ⛰️

We value your privacy ⛰️