With regard to the article on the Isle of Wight's Undercliff Drive scheme (NCE 23 November) the proposed option to strengthen the existing A3055 is the result of an extensive study carried out by specialist external consultants.
It will stabilise four areas of the Undercliff using a combination of piles, earthworks, counterfort drains and pumped wells to maintain the water table at summer levels.
The inland diversionary route was given due consideration, but to cater for the expected trafc flows, the existing route via Whitwell would have to be upgraded and a new by-pass to the north of Niton constructed.
Works to Undercliff Drive would also still be required at three of the four sites to maintain access to properties with total costs for the option exceeding £20M at 2003 prices.
The overnment ppraisal Document submitted to the Department for Transport in 2003 clearly justies the need for this scheme giving full consideration to the impact on businesses, tourism and the local community.
Natural ngland, he Environment Agency and Mark Lee have been consulted at all stages of the process and are fully conversant with the scheme.
Carole Hibdige, Isle of Wight Council, Communications & PR Department, County Hall, Newport, Isle of Wight, PO30 1UD