The bridge itself takes the same name as the village it is situated in and is one of three bridges connecting Holy Island and Anglesey. The bridge is approximately four miles (6.5 km) from Holyhead via the old road route, giving it, and the village, its name. A bridge at this location was in existence by 1530, and was the only land route to Holyhead until the construction of the Stanley Embankment in 1823. It is 120 metres (390 ft) long and carries the B4545 road over the Cymyran strait.

I think the crossing over the water is about 5km

Neil Sneade

August 23, 2024

Road cycling

It’s definitely not 4 miles long, but it is 4 miles from Holyhead (on the old road). Until the 1800s this was the only crossing to Holy Island; now it forms the ‘inland sea’ together with the main crossing on The Cob embankment at the northern end of the Cymran Strait.

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Best routes to Four Mile Bridge

155

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1. View of Cemaes Bay and Harbour – Four Mile Bridge loop from Holyhead

105km

04:34

920m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

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2. RAF Valley – Four Mile Bridge loop from Bryngwran

42.6km

01:50

230m

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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Easy

5.0

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3. Trearddur Bay Beach – Four Mile Bridge loop from Holyhead

25.3km

01:04

180m

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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Easy

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Informations

Elevation 0 m

Weather

Today

Monday 2 March

10°C

7°C

89 %

Additional weather tips

Max wind speed: 35.0 km/h

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Take Me There

Location: Rhoscolyn, Anglesey, North Wales, Wales, United Kingdom

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Four Mile Bridge

1. View of Cemaes Bay and Harbour – Four Mile Bridge loop from Holyhead

2. RAF Valley – Four Mile Bridge loop from Bryngwran

3. Trearddur Bay Beach – Four Mile Bridge loop from Holyhead

Other Popular Places to Check Out

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