5 ms·State-mandated design and build engineering requirementsby ab_goat 3y agoState-mandated design and build engineering requirementssethherr 3y agoNot having the bridge blow over or vibrate apart.asdff 3y agoYet there are wooden trestle bridges that have seen traffic for 100 yearscivilitty 3y agoThat’s probably what inspired those building codes…