A review of the structure of local government in England by the Local Government Commission for England led to the restoration of the East Riding of Yorkshire, Herefordshire, Rutland and Worcestershire as administrative areas in the 1990s; the abolition of Avon, Cleveland and Humberside within 25 years of their creation; and the restoration of the traditional borders between Somerset and Gloucestershire (except at Bristol), County Durham and Yorkshire (towards the mouth of the River Tees; not in Teesdale), and Yorkshire and Lincolnshire for ceremonial purposes in these areas. The case of Huntingdonshire was considered twice, but the Commission found that "there was no exceptional county allegiance to Huntingdonshire, as had been perceived in Rutland and Herefordshire".