Highlight • Structure
Eigiau Dam Ruins
Hiking
5.0
(17)
Running
5.0
(1)
Mountain biking
5.0
(1)
The Eigiau Dam Ruins are the poignant remains of a former dam nestled in a glaciated valley on the edge of the majestic Carneddau mountain range in Snowdonia, North Wales. Situated near the serene Llyn Eigiau and the village of Dolgarrog in the Conwy Valley, this historical site stands at an elevation of approximately 390 metres. It is a powerful reminder of both human engineering and a significant industrial tragedy, offering a unique blend of natural beauty and historical reflection within the stunning Welsh landscape.
Visitors are deeply moved by the historical significance of the Eigiau Dam Ruins, which serve as a visible testament to the devastating Dolgarrog Dam Disaster of 1925. The remnants of the dam wall, with its deliberate breach, vividly illustrate the engineering flaws that led to the tragedy. Hikers and cyclists appreciate the opportunity to explore the rugged beauty of the surrounding Carneddau mountains, with many routes offering stunning views across the Conwy Valley and a chance to reflect on the profound impact of the disaster on the local community.
Before embarking on a visit, it's helpful to understand the historical context of the site. The original Eigiau Dam, constructed in 1911, was designed to supply water for a power station. Its failure in 1925 released a torrent that overwhelmed the Coedty Reservoir downstream, causing widespread destruction in Dolgarrog and claiming 16 lives. This event led to the implementation of the Reservoirs (Safety Provisions) Act in 1930, highlighting the site's lasting legacy on national safety regulations. The terrain around the ruins can be rugged, so appropriate footwear and weather-dependent clothing are advisable.
The area around the Eigiau Dam Ruins is ideal for outdoor activities such as hiking and cycling, particularly during drier periods when the mountain paths are more accessible. While there isn't a specific "best time" to visit in terms of crowds, considering the history of the dam's failure during heavy rain, checking the weather forecast is always a good idea. Many choose to combine their visit with a walk around Llyn Eigiau or explore the wider Carneddau range, making it a rewarding destination for those seeking both adventure and historical insight.
The visible breach in the dam wall is a stark and memorable feature, allowing visitors to grasp the scale of the 1925 disaster. A memorial walk guides visitors along the flood's path, tracing the story of destruction and recovery, and pointing out massive boulders, some weighing up to 200 tonnes, that were swept into Dolgarrog. This immersive experience helps paint a vivid picture of the events and the resilience of the community, making the Eigiau Dam Ruins a truly impactful destination.
Whether you're interested in the history of the Dolgarrog Dam Disaster, seeking challenging hiking trails near Eigiau Dam Ruins, or simply looking for a peaceful walk amidst stunning natural features, there are numerous routes to explore. You can discover a variety of options for hiking and cycling, including family-friendly walks, by planning your adventure with komoot. The area offers a unique opportunity to connect with both the dramatic history and the breathtaking landscapes of Snowdonia.
This Highlight is in a protected area
Please check local regulations for:
Tips
November 30, 2020
Hiking
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 …
In the know? Log-in to add a tip for other adventurers!
Sign up for free
Nearby routes
Best routes near Eigiau Dam Ruins
4.8
(8)
43
hikers
15.3km
05:03
700m
700m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(7)
70
hikers
16.9km
06:00
940m
940m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.2
(5)
33
hikers
13.4km
04:04
390m
390m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Details
Informations
Elevation 390 m
Weather
Powered by Foreca
Tuesday 16 June
17°C
10°C
29 %
Additional weather tips
Max wind speed: 23.0 km/h
Most visited during
January
February
March
April
May
June
July
August
September
October
November
December
Frequently Asked Questions
What is the historical significance of the Eigiau Dam Ruins?
The Eigiau Dam Ruins are a poignant reminder of the 1925 Dolgarrog Dam Disaster. The original dam, built in 1911, failed after heavy rains, releasing a torrent of water that overwhelmed the downstream Coedty Reservoir. This catastrophic event caused widespread destruction in the village of Dolgarrog, claiming 16 lives. The disaster led to a parliamentary investigation and the implementation of the Reservoirs (Safety Provisions) Act in 1930, making the site historically significant for its impact on UK reservoir safety regulations.
Are there specific trails that highlight the Dolgarrog Dam Disaster?
Yes, there is a memorial walk created in 2004 that guides visitors along the flood's path. This route traces the story of destruction and recovery, featuring massive boulders, some weighing up to 200 tonnes, that were swept into Dolgarrog by the floodwaters. It offers a powerful and immersive experience of the disaster's scale.
What is the typical terrain like on the hiking trails to the Eigiau Dam Ruins?
The terrain around the Eigiau Dam Ruins and Llyn Eigiau is generally rugged and can be challenging. Hikers should expect uneven paths, rocky sections, and potentially boggy ground, especially after rain. Appropriate footwear is essential for navigating these conditions.
Is the Eigiau Dam Ruins area suitable for a winter hike?
Winter hiking to the Eigiau Dam Ruins is possible but requires careful planning and appropriate gear. The area can experience harsh weather conditions, including snow, ice, and strong winds. Paths may become slippery or obscured. It's crucial to check the weather forecast, have experience with winter mountain conditions, and carry suitable equipment like waterproof clothing, warm layers, and potentially microspikes or crampons.
Are there any family-friendly walking options near the Eigiau Dam Ruins?
While the immediate area around the ruins can be rugged, there are routes that can be adapted for families. Shorter, less strenuous walks around Llyn Eigiau itself might be suitable for families with older children. However, due to the exposed nature and potentially challenging terrain, it's advisable to assess the route difficulty and weather conditions carefully before setting out with young children.
Are dogs allowed on the trails to Eigiau Dam Ruins?
Yes, dogs are generally welcome on the trails to Eigiau Dam Ruins. However, as it's a rural, mountainous area, it's essential to keep dogs under close control, especially around livestock which may be grazing freely. Always follow the Countryside Code, pick up after your dog, and ensure they are well-behaved around other hikers and wildlife.
Where is the best place to park when visiting the Eigiau Dam Ruins?
Parking is typically available at designated spots near the trailheads leading to the Eigiau Dam Ruins. One common starting point is near the end of the public road leading from Tal-y-bont towards Llyn Eigiau. Parking can be limited, especially during peak seasons or on weekends, so arriving early is often recommended to secure a spot.
Are there any amenities like cafes or pubs near the Eigiau Dam Ruins?
The Eigiau Dam Ruins are located in a remote part of Snowdonia, so there are no direct amenities like cafes or pubs at the site itself. Visitors should plan to be self-sufficient, carrying all necessary food and drink. The nearest villages with facilities, such as Dolgarrog or Tal-y-bont, are a drive away.
What kind of wildlife can be seen in the Eigiau Dam Ruins area?
The area around Llyn Eigiau and the Carneddau mountains is home to various wildlife. You might spot mountain birds such as ravens, buzzards, and peregrine falcons. The lake itself is known to contain brown trout and potentially Arctic char. Wild ponies are also a notable feature of the Carneddau range, often seen grazing on the hillsides.
How long does it typically take to hike to the Eigiau Dam Ruins?
The duration of a hike to the Eigiau Dam Ruins varies significantly depending on your starting point, chosen route, and fitness level. A common loop from the parking area near Llyn Eigiau can take anywhere from 3 to 5 hours, covering several miles over rugged terrain. Longer routes from villages like Dolgarrog or Tal-y-bont would naturally take considerably more time.
Are there any accessible routes for visitors with limited mobility near the Eigiau Dam Ruins?
Due to the rugged and uneven terrain of the Carneddau mountains, there are no specifically accessible routes suitable for wheelchairs or visitors with very limited mobility directly to the Eigiau Dam Ruins. The paths are generally unpaved and can be steep or rocky. Visitors requiring accessible options may find better alternatives in other parts of Snowdonia National Park.