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M10 motorway (Great Britain)

Coordinates: 51°44′15″N 0°22′16″W / 51.7374°N 0.3710°W / 51.7374; -0.3710
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M10 shield
M10
Route information
Established by Ministry of Transport with Hertfordshire County Council and Tarmac Construction
Length2.8 mi (4.5 km)
Time period1959 - 1st May 2009
Cultural significanceJoint second motorway in Great Britain
Related routesM1 and M45
Major junctions
FromHemel Hempstead
Major intersections
M1 motorway
ToSt Albans
Location
CountryUnited Kingdom
Road network
Former M10 south of St Albans

The M10 was a motorway in Hertfordshire running for approximately 3 miles (4.5 km) from the M1 motorway at Junction 7 to the A414 North Orbital road at Park Street roundabout. Opened in 1959 it was reclassified as part of the A414 in 2009.

History

The road, opened in 1959, was designed and constructed by Tarmac Construction[1] as part of the St Albans bypass (along with the M1 between junctions 5 and 10a).[2] It was built as a spur to distribute traffic heading south on the M1[3] onto the A5 (now A5183) and, as an alternative, via the North Orbital Road and the A6 to the A1 Barnet Bypass. The main route from the M1 to the A1 in London, was however, via the A41 Watford bypass to Berrygrove. Two distributors were required because the capacity of the A roads was much less than that of the motorway, and the traffic therefore needed to be split up to reduce congestion. The M45 is the equivalent spur road at the northern end of the 1959 section of M1.

Downgrade

In December 2008, widening of the M1 between the M25 and Luton was completed, with non-motorway collector distributor lanes linking the M10 (at Junction 7 of the M1) with the next junction (no.8) for Hemel Hempstead.[4] As traffic can now get to junction 8 of the M1 without actually joining it, there was no need to keep the M10 as a motorway. As of midnight on 1 May 2009, the M10 was downgraded to an A road, and designated as part of the A414. This also releases the road designation "M10" for use elsewhere.

Junctions

M10 Motorway
Westbound exits Junction Eastbound exits
The NORTH M1 M1 J7 Start of motorway
Start of motorway J1 Hatfield A414
St Albans, Radlett A5183
Bricket Wood A405

See also

References

  1. ^ Motorway archive list of material held by Northamptonshire CC
  2. ^ The Motorway Archive
  3. ^ CBRD Motorway Database - M10
  4. ^ Highways Agency Leaflet (PDF)

51°44′15″N 0°22′16″W / 51.7374°N 0.3710°W / 51.7374; -0.3710

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