Ice alert for Teesside and County Durham travellers
Travellers are being warned of potentially difficult conditions because of continued sub-zero temperatures.
Durham Tees Valley Airport near Darlington has reopened after being closed for almost three days.
The A66 remained closed between Brough and Bowes due to snow as was the A689 in County Durham between Wearhead and Alston in Cumbria.
Part of Chester Road in Sunderland was closed when part of a house collapsed.
Northern Rail services between Middlesbrough and Whitby had been cancelled.
Most bus services are operating normally, although operators warned of restrictions on estate roads which had not been treated.
Councils and the Highways Agency said major routes were continuing to be treated regularly.
In Sunderland, part of the A183 Chester Road was closed after the weight of snow above a bay window forced it to come away from a terraced house.
No-one was in the property at the time and police said neighbouring homes were not affected.
A Northumbria force spokesman said structural engineers are assessing the damage.
Cleveland and Durham Police urged drivers to be aware of freezing conditions on the roads which had resulted in icy conditions.
Health officials have urged people to check on vulnerable neighbours after it emerged two elderly people had died in freezing conditions in Cumbria.
Stephen Groves, head of emergency preparedness at NHS North East, said: "We're asking everyone not only to look after themselves but to take time to check on those who are most vulnerable.
"Don't assume they are OK or that someone else has checked. Go and see for yourself as they may well have ran out of food and essential medicines.
"Such freezing temperatures significantly increase the risk of hypothermia for those who are most vulnerable and can cause complications with other illnesses and for people with long terms health conditions.
"Our advice for everyone is to keep as warm and dry as possible and to have at least one warm meal every day."