The Georgian streets in the vicinity of the river tended to be built high above the original ground level to avoid flooding, with the carriageways supported on vaults extending in front of the houses. This can be seen in the multi-storey cellars around Laura Place south of Pulteney Bridge, in the colonnades below Grand Parade, and in the grated coal holes in the pavement of North Parade. In some parts of the city, such as George Street, and London Road near Cleveland Bridge, the developers of the opposite side of the road did not match this pattern, leaving raised pavements with the ends of the vaults exposed to a lower street below.