Tesco is to forge ahead with plans to build a store in the Buckinghamshire town of Gerrards Cross.
The project has been at a standstill since the tunnel on which it was being built collapsed on to the railway line below in June 2005.
Tesco said it was working with contractors and engineers Costain and Scott Wilson to finalise a "substantially more robust" tunnel structure and construction method.
The design needs approval from Network Rail, which Tesco said it hoped to have by September, allowing building to resume in February 2008. It said it wanted to open the store by 2010.
But there remains strong opposition to the development from locals.
Tesco property governance director Malcolm Brummer was jeered this week as he explained plans to 200 residents of the town, according to reports in the local press.
Concerns were raised about the length of time Tesco was taking to complete the build.
Fears were also expressed about the possible risk to health posed by the dust that would be generated by the material used in the tunnel's construction.
Tesco has set up a website to keep residents and travellers informed of progress: tescogerrardscross.co.uk.