<Tr> <Td> 1 January 1999 </Td> <Td> £ 4.20 </Td> <Td> £ 8.40 </Td> <Td> £ 12.50 </Td> </Tr> <Tr> <Td> 1 January 2000 </Td> <Td> £ 4.20 </Td> <Td> £ 8.50 </Td> <Td> £ 12.70 </Td> </Tr> <Tr> <Td> 1 January 2001 </Td> <Td> £ 4.40 </Td> <Td> £ 8.70 </Td> <Td> £ 13.10 </Td> </Tr> <Tr> <Td> 1 January 2002 </Td> <Td> £ 4.40 </Td> <Td> £ 8.90 </Td> <Td> £ 13.30 </Td> </Tr>

The iron struts of the severn bridge serve to relieve weight directing it