Welsh councils paid £1.8 million pounds out in compensation claims for road users last year.
The annual Local Authority Road Maintenance Survey says two thirds of roads were badly affected by flooding in 2012.
Between them, councils in Wales filled nearly 160,000 potholes.
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Rain moving east, will spread across Wales in the first half of the night, some likely heavy.
Rain moving east, heavy at times
The Lesbian, Gay, Bisexual and Transgendered communities in Cardiff are celebrating 30 years of campaigning; as part of LGBT History Month.