Eigiau Valley Gravel Road – Eigiau Dam Ruins loop from Dolgarrog
Eigiau Valley Gravel Road – Eigiau Dam Ruins loop from Dolgarrog
6
hikers
Eigiau Valley Gravel Road – Eigiau Dam Ruins loop from Dolgarrog
00:49
3.25km
0m
Hiking
Easy hike. Easily walkable paths. The starting point of the route is right next to a parking lot.
Last updated: October 27, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
25 m
Eigiau Valley Gravel Road
Highlight (Segment) • Trail
Tip by
1.65 km
Eigiau Dam Ruins
Highlight • Structure
On 2 November 1925 the failure of two dams caused a flood that swamped the village of Dolgarrog, killing 16 people. The disaster was started by the failure of the Eigiau Dam, a gravity dam owned by the Aluminium Corporation. The water released from the reservoir flooded downstream,[10] and overtopped the Coedty Dam, an embankment dam. This dam also subsequently failed, releasing the huge volume of water that flooded Dolgarrog.[11] Many more villagers could have been killed had they not been in the local theatre watching a film that night.
The disaster at Dolgarrog led the British parliament to pass the Reservoirs (Safety Provisions) Act in 1930, which introduced laws on the safety of reservoirs. This has since been updated, and the current one is the Reservoirs Act, 1975.
Tip by
3.25 km
End point
Parking
Way Types & Surfaces
Way Types
3.14 km
108 m
Surfaces
3.14 km
108 m
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Monday 9 November
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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