A platform, flush with the roadway, having a mechanism for weighing vehicles etc(noun)
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Use "weighbridge" in a sentence
"The Sprinter: he parked on a weighbridge, which I had to drive on, and reverse off."
"Coal was brought in past the red brick gothic superintendent's lodge and on to this weighbridge next to a green sentry box containing the dial."
"The one nearest the road is most likely to do with the weighbridge, this little building is smaller and probably stored goods sidings paraphanalia such as oil lamps, wagon hitching poles and a shelf for white enamelled cans of tea."