Each lock is crossed by a Bascule bridge, to carry pedestrians and vehicles across. These are lifted for boats to pass. The weight of the bridge deck is counterbalanced by an overhead weight on the opposite side of the pivot.

Five sluice gates control the level of water in the Bay. Each sluice gate is 9 metres wide and 7.5 metres high. The sluices open to maintain the level of the Bay, and close when the estuary level is higher than the Bay to prevent seawater entering the freshwater lake.

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#1.

Llandaff Cathedral – Blue Bridge, Radyr loop from Radyr

33.1km

01:55

170m

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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Elevation 10 m

Weather

Wednesday 8 April

13°C

6°C

13 %

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Max wind speed: 30.0 km/h

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Location: Penarth, Vale of Glamorgan, South Wales, Wales, United Kingdom

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Cardiff Bay Barrage Locks

#1.

Llandaff Cathedral – Blue Bridge, Radyr loop from Radyr

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