 The building's granite blocks were hauled to Montpelier on the frozen Winooski River from quarries at Barre.But a fire in 1857 destroyed much of the building, except for the portico and some of the walls.With considerable respect for Young's original design, the Vermont State House was rebuilt, although now with wings extended by a bay, and a cupola crowning the roof – the plan of Thomas Silloway, trained in Young's office from 1847 until 1851.