Menai Suspension Bridge has narrow arches with a width restriction of 2.6 metres and a height limit of 4.7 metres.
HGVs, large lorries, and buses normally use Britannia Bridge, the other bridge crossing the Menai Strait between the Isle of Anglesey and the Welsh mainland, which is subject to less restrictive width and height limits.
During periods of high winds, when Britannia Bridge is closed to high-sided vehicles, the Menai Bridge offers an alternative crossing route, provided vehicle size limits are observed.
