Ben Crom sits above Silent Valley in the upper Kilkeel River valley. Completed in 1957, its concrete gravity dam holds back the water through the weight of the structure.
A return walk from Silent Valley follows the tarmac road to Ben Crom. Seeing both reservoirs brings two chapters of the Mourne water-supply story into one day; allow enough time for the journey back.
- Completed
- 1957
- Dam type
- Concrete gravity dam
What to look out for
- Concrete gravity-dam engineering
- Upper Kilkeel valley setting
- Connection with the Silent Valley visitor approach
Plan your visit
Start with NI Water’s current visitor and trail information and allow for the full return. Follow barriers and signs; swimming and other water activities are prohibited.
Visitor information & access →
Sources & further reading
Checked 2026-10-08: NI Water · NI Water Ben Crom engineering record · NI Water current park information · NI Water reservoir safety guidance.