Who maintains the uk's highway system and who controls them for design,building,repair?

Answer 1

In England, trunk roads and motorways are under the control of the Highways Agency, an agency working for the UK central government.
Other roads are under the control of the relevant county councils.

In Wales, TransportWales is in charge of Motorways and Trunk roads, similar to the Highways Agency in England, while in Scotland the equivalent is Transport Scotland (an agency of the Scottish Executive, accountable to the Scottish Parliament).

In Northern Ireland, all roads are under the control of the Roads Service of Northern Ireland.

Design and Building have to be approved by the relevant Government departments. These activities are usually controlled by the agency responsible for the road, but are generally subcontracted to specialist engineering and construction companies.
Maintenance and Repair may be carried out by staff who work directly for the relevant authorities, or may be subcontracted.

Answer 2

Highways agency covers the running and repair. Government does the rest.

Answer 3

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