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United Kingdom
Northern Ireland
Newry And Mourne
Carrigenagh Upper

Binnian Tunnel

Highlight • Structure

Binnian Tunnel

Hiking

5.0

(4)

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Mourne AONB

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  • Location: Carrigenagh Upper, Newry And Mourne, Northern Ireland, United Kingdom

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    September 6, 2025

    Hiking

    The tunnel diverts the waters of the Annalong Valley catchment area into this reservoir and was opened on 28th August 1952

    September 6, 2025

    Hiking

    The Binnian Tunnel (2.5 miles long) was constructed between 1947 and 1950/51 and is located under the Mourne Mountains in County Down, Northern Ireland. The main purpose of the tunnel is to divert water from the Annalong Valley to the Silent Valley Reservoir underneath Slieve Binnian, after which the tunnel was named.
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    Nearby routes

    Best routes near Binnian Tunnel

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    4.5

    (12)

    194

    hikers

    #1.

    Silent Valley Reservoir – Silent Valley Reservoir Road loop from Kilkeel River

    10.4km

    02:45

    100m

    100m

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

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

    Moderate
    placeholder

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

    Moderate

    Details

    Informations

    Elevation 160 m

    Weather

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    Wednesday 20 May

    16°C

    10°C

    63 %

    Additional weather tips

    Max wind speed: 21.0 km/h

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    Location: Carrigenagh Upper, Newry And Mourne, Northern Ireland, United Kingdom

    Other Popular Places to Check Out

    Slieve Binnian Summit

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