The A5086 partially blocked due to flooding between A595 / Howbank Road (Egremont) and A66 (Cockermouth Roundabout, Cockermouth).
Motorists are being advised to approach the road with care.
There are various stretches of the road affected as well as a number of minor routes through Frizington, Wath Brow, and Cleator Moor.
More top news
Nominations are now open for the 2017 ITV Fundraiser of the Year – part of the Daily Mirror Pride of Britain Awards.
Speed cameras across Scotland raked in more than £5 million over 2016, the highest since 2014.
Winners at this year Cumbria Tourism awards have been commended for their contribution to the county's tourism and hospitality industry.