The A418, near to Wingrave, is closed due to what Police describe as "adverse weather conditions".
Officers say they've been at the scene and confirm the road is currently flooded (8am).
Highway Maintenance have been notified and will be attending shortly.
Police are advising drivers to avoid the area and stay safe.

Risborough Rangers Stadium Break-In Threatens Memorial Fundraising Efforts
Local author publishes second novel
Buckinghamshire schools take part in Dragons' Den-style green technology challenge
Big Give Boost for Hospice at Home Care
Consultation on Churchway Speed Limit Reduction in Haddenham
Leader of Buckinghamshire Council responds to national Budget
Shoppers get a festive lift with Boxing Day train route
1,300 Arrests as TVP Target Town-Centre Crime











