News1 min ago
Bridges
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Hi, does anyone know the minimum height for a bridge over a minor road? I'm guessing it varies with the width of the bridge - is there a chart anywhere? Thanks!
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There's no rule defining the minimum heights of bridges.
Many rail bridges, for example, were built over minor roads which, at the time, were only intended to be tall enough to allow a man leading a horse to get underneath. Some of the tracks, which went under those bridges, have now become busy roads. For example, there's a road near me, with a constant flow of traffic in both directions, with an 8'3" bridge. Elsewhere in the country, I've seen bridges over busy roads with heights of around 7'.
Chris
Many rail bridges, for example, were built over minor roads which, at the time, were only intended to be tall enough to allow a man leading a horse to get underneath. Some of the tracks, which went under those bridges, have now become busy roads. For example, there's a road near me, with a constant flow of traffic in both directions, with an 8'3" bridge. Elsewhere in the country, I've seen bridges over busy roads with heights of around 7'.
Chris
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