 A number of Harrison 's structures in England and Wales are listed at Grade II * , the middle grade for those that are " particularly important buildings of more than special interest " ; 5 @.@ 5 % of all listed buildings are Grade II * . They include Skerton Bridge , Bridge Houses , Lancaster , St Mary 's Bridge , Derby , Quernmore Park Hall , the Lyceum in Liverpool , The Portico Library in Manchester , Woodbank in Stockport , the Marquess of Anglesey 's Column , Watergate House in Chester , and the Citadel at Hawkstone Park . 
