|Location Map ( geo)|
|Staples Corner roundabout|
|Highways England • Transport for London|
|Double stacked roundabout interchange (incomplete)|
|M1, A5, A406|
It consists of a long and high flyover on the A406, with two roundabouts underneath, joined by a short dual carriageway. West-facing sliproads meet the western, A5, roundabout, east-facing sliproads meet the eastern, M1, roundabout.
Despite being single carriageway either side, the A5 is grade-separated through the junction, with a dual carriageway flyover on a middle level. The A5 slip roads and roundabouts are under Transport for London management, but the overpass and the road either side of the junction are maintained by Barnet Council.
The M1 was to head further south, and earthworks for the overpass over the roundabout (on the middle level) were later used for an extra slip road, passing over the north side of that roundabout before descending and meeting the south side of the roundabout from the inside. The M1 is maintained by the Highways England.
The junction is named after a mattress factory, which existed near to the site until 1986 (source: The Londonist)
|The NORTH, Watford|
|North Circular, (A40), (M4), Wembley, Neasden|
|North Circular, Central London, Wood Green, Golders Green|
|Harrow, Edgware, West Hendon|
|Brent Cross shopping centre|