On Monday, many roads across north Wales remained treacherous and some impassable, particularly minor routes.
The streets of Rangoon were impassable for hours every day that I was there.
Roads across the Northeast were impassable and cars were entombed by snow drifts on Saturday.
In Connecticut, Mr. Malloy said there were roads made impassable because of car accidents.
The villages of Yealmpton and Tamerton Foliot in Devon are said to be "impassable".
More than 20 A and B roads were classed as impassable during the day.
In many areas people were forced to abandon their vehicles as roads became impassable.
In addition, the database is being updated continuously to show which roads and bridges are impassable.
The roads are bad even when the weather is good, often impassable when it rains or snows.
"On Exmoor there's a lot of snow drifting around and some roads are still impassable, " he said.
According to police Cronk-Y-Voddy, Baldwin and Dalby remain closed and impassable and these roads should not be used.
In Wales, a number of roads are still closed with many impassable after last week's bad weather.
The A470 Crimea Pass between Blaenau Ffestiniog and Dolwyddelan was said to be impassable with cars turning back.
Earlier Devon and Cornwall Police tweeted that Haldon Hill and Telegraph Hill near Exeter were "border-line impassable".
Flash flooding made parts of some roadways impassable, with some reporting waters rising more than six feet in spots.
Many roads are still full of debris and impassable, and communities are implementing curfews to try to limit looting.
Councils have prioritised major routes but some minor roads and side roads in north and mid Wales remain impassable.
For the next two hours the 5 miles up ahead would be impassable.
Many roads across the New York-to-Boston corridor of 25 million people were impassable.
More than 20 A and B roads were classed as impassable during Monday.
Earlier, the A35 at Emery Down in Lyndhurst was impassable after four crashes, with lorries unable to climb the hill.
The agency said parts of Nebraska could see more than a foot of snow, with drifts making some roads impassable.
"Several attempts were made by local police to get to the man but the road was impassable, " the chief inspector said.
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However, those buses stayed in garages because roads were impassable immediately after the storm dumped more than 2 feet of snow.
They have gained ground against the Shabab since invading in mid-December, though the Kenyans have got bogged down on nigh-impassable roads.
Contrast this with Afghanistan's impassable mountains and anarchic ways, and with the poppy cultivation and its culture of warlords and bandits.
Many smaller routes, especially in the south of the county, remained impassable.
Dyfed-Powys Police received dozens of calls, including reports of roads becoming impassable due to flash floods and one of a stranded driver.
If your vehicle becomes disabled or the road becomes impassable, turn on your emergency flashers, stay in the car and remain calm.
Many roads blocked after snow on Friday and Saturday are still impassable.
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