Snow and ice made the road impassable.

冰雪使道路无法通行。

youdao

The rise in the road is so high that it is impassable.

路上的壅土堆得太高，以致于堵住了道路。

youdao

Every year the river floods and spills onto the surrounding land, making the broad valley impassable by road for nearly six months.

这条河流每一年都泛滥成灾，急涌而流的河水把周围的土地都淹没了，接近有六个月的时间里，宽阔的山谷也让洪水淹得无路可走。

youdao

Many southerners live in remote areas difficult to access by road, and many roads become impassable during rainy season.

VOA: standard.2010.03.23

"And,in many of these areas, either the roads are impassable due to insecurity or due to poor weather and poor road conditions."

VOA: standard.2009.08.02

She says it is not possible to deliver aid to the region by road because of insecurity and the rains, which make the roads impassable.

VOA: standard.2009.08.08

"Several attempts were made by local police to get to the man but the road was impassable, " the chief inspector said.

BBC: Northern Ireland rescue teams facing snow drifts up to 18ft

If your vehicle becomes disabled or the road becomes impassable, turn on your emergency flashers, stay in the car and remain calm.

FORBES: Stress-Reducing Holiday Road-Trip Tips

According to a department spokesman, Benn-i-pott Road, from Brandywell Cottage to the Mountain Road remains impassable due to "large snow drifts" .

BBC: Isle of Man roads closed by snow and surface water