Welsh Liberal Democrat leader Kirsty Williams says scrapping the tolls on the Severn Bridges would cost the UK Government around £15m a year once the construction bill is paid in 2018 and debts associated with the bridges are settled.
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The Welsh Government says the pilot aims to support low-income families with the extra costs during the summer schools holidays.
After a soggy day across much of Wales things will start to settle down over the weekend with a return to hot summer sunshine next week!
Alaphilippe completed the 27km course in 35 minutes flat, 14 seconds faster than second placed Thomas.