This actually happened in Arkansas – check out this bridge that has a 10 ton weight limit trying to support a bus that weighs 35 tons (you’ll notice the bridge actually dips).
CHEPSTOW, WALES - OCTOBER 09: Vehicles cross the M4 Prince of Wales Bridge, one of the two bridges that form the Severn Crossing, on October 9, 2018 in Chepstow, Wales. Last week at the Conservative Party Conference, Welsh Secretary Alun Cairns announced that after more than 50 years, the Severn crossing toll will be abolished on both the M48 Severn Bridge and the M4 Prince of Wales Bridge from December 17 2018, several weeks earlier than expected. An estimated 25 million car journeys are made across the River Severn between England and Wales every year using the two bridges that form the Severn Crossing. Currently, motorists traveling in cars and minibuses are charged £5.60. Drivers in vans up to 3.5 tonnes, double-cab pick-ups and small buses with up to 17 seats are charged £11.20. Whilst those in goods vehicles and lorries (over 3.5 tonnes) and buses with more than 17 seats pay £16.70. (Photo by Matt Cardy/Getty Images)