Wednesday, June 3, 1998 Published at 05:30 GMT 06:30 UK
English monuments 'nibbled away'
An earthwork in Dorset partially destroyed by ploughing
One historical monument a day has been lost forever since 1945, according to English Heritage which advises the government on listed buildings.
The first ever census of archaeological sites in England, carried out for English Heritage by Bournemouth University, covered 15,000 out of a total of about 300,000 recorded monuments.
Called Monuments at Risk, the report showed that 16% of all sites have been lost to property development, agricultural activity and natural erosion.
"The report has brought home to me, more than anything else, the way in which our archaeological monuments are being nibbled away," said Professor Timothy Darvill, who headed the survey.
"We need to work really hard, at all levels, to afford our most important monuments the long-term protection they deserve."
A World War II concrete pillbox which once stood at East Mersea near Colchester in Essex has been completely destroyed by coastal erosion.
Only one photograph taken in 1974 remains showing it leaning perilously over a cliff edge.
Following the survey, English Heritage has published a new strategy called Pathways to Protecting the Past.
It now plans to target monuments in urgent need of protection, commission research into new areas of archaeology on contaminated land and help local authorities develop protect their heritage.
The Monuments at Risk survey used the year 1995 as a benchmark and revealed that: