Labour's Jim Robbins, who represents the Rodbourne area, said action is needed in Morris Street.
But Swindon Borough Council has argued such an expensive fix is not necessary yet – and claims the issue had not been reported.
Figures from the Department for Transport showed Swindon would receive £3.5 million to maintain roads across the borough in 2021-22.
That is £1.2m less than the £4.7m provided in the current financial year – a reduction of 26 per cent.
Readers highlighted pothole-strewn paths in their neighbourhoods.
Carol Murray: “I drove through Cheney manor Industrial Estate last week. It’s like driving on a dirt road. Absolutely disgraceful.”