A405 road
Encyclopedia
The A405 is a main five-mile-long dual carriageway road in Hertfordshire
. It has, however, been a longer road.
with the A41 in the borough of Watford in Hertfordshire. It passes between the Watford districts of Woodside and Abbots Langley
to the west, and Kingswood to the east. There is a crossroads with Sheepcot Lane before the road meets the northern terminus of the A412
(for Garston) at traffic lights near a McDonalds. After passing the Three Horseshoes public house
on the left, it briefly enters the borough of Three Rivers
, passing a primary school and secondary school on the left, then becoming St Albans Road with Penfold Park golf course on the right.
At junction 6 of the M1, the A405 becomes the trunk
North Orbital Road and enters the borough of St Albans
. Northbound traffic on the M1 cannot access the M25 at junction 6a, a mile to the north, so M1 traffic has to access junction 6 and use the A405 to reach the M25, and M25 traffic has to use the A405 to reach the M1 south. To the east of this section between the M1 and M25 is the village of Bricket Wood
.
The road meets the M25 at junction 21a. Joining the M25 anticlockwise here means you cannot access the M1 northbound at junction 21, as the slip road joins the M25 after the slip road from the M25 to the M1 northbound.
After the M25 junction, there are roundabouts with the B4630 for Chiswell Green
, and with Tippendell Lane for How Wood
.
It ends at what was junction 1 of the M10
(now part of the A414
), at a roundabout with the A5183 Watling Street (formerly part of the A5) and the A414 near Park Street
.
bypass northern roundabout opened in 1960. This is now part of the A414 and still called North Orbital Road.
Hertfordshire
Hertfordshire is a ceremonial and non-metropolitan county in the East region of England. The county town is Hertford.The county is one of the Home Counties and lies inland, bordered by Greater London , Buckinghamshire , Bedfordshire , Cambridgeshire and...
. It has, however, been a longer road.
North Orbital Road
As the North Orbital Road, it occupied what is now junctions 17 to 19 of the M25, being one of the first sections of the M25 to open. The section of the M25 from junctions 19 to 23, including the busy M1 junction, was the last section to open. Hence the A405, a dual carriageway road, acted as the M25's north-west section until the M25 was completed.Route
It starts as Kingsway at a grade separated junctionGrade separation
Grade separation is the method of aligning a junction of two or more transport axes at different heights so that they will not disrupt the traffic flow on other transit routes when they cross each other. The composition of such transport axes does not have to be uniform; it can consist of a...
with the A41 in the borough of Watford in Hertfordshire. It passes between the Watford districts of Woodside and Abbots Langley
Abbots Langley
Abbots Langley is a large village and civil parish in the English county of Hertfordshire. It is an old settlement and is mentioned in the Domesday Book. Economically the village is closely linked to Watford and was formerly part of the Watford Rural District...
to the west, and Kingswood to the east. There is a crossroads with Sheepcot Lane before the road meets the northern terminus of the A412
A412 road
The A412 is a road in England that links Slough and Watford. It was previously the main artery for this corridor, prior to the construction of the M25. It provides interchange to the A40/M40 at the Denham Roundabout, the M25 in Maple Cross and the A41 north of Watford...
(for Garston) at traffic lights near a McDonalds. After passing the Three Horseshoes public house
Public house
A public house, informally known as a pub, is a drinking establishment fundamental to the culture of Britain, Ireland, Australia and New Zealand. There are approximately 53,500 public houses in the United Kingdom. This number has been declining every year, so that nearly half of the smaller...
on the left, it briefly enters the borough of Three Rivers
Three Rivers (district)
Three Rivers is a local government district in Hertfordshire in the East of England. Its council is based in Rickmansworth.It was formed on 1 April 1974 by the merger of Rickmansworth Urban District and Chorleywood Urban District with part of Watford Rural District...
, passing a primary school and secondary school on the left, then becoming St Albans Road with Penfold Park golf course on the right.
At junction 6 of the M1, the A405 becomes the trunk
Trunk road
A trunk road, trunk highway, or strategic road is a major road—usually connecting two or more cities, ports, airports, and other things.—which is the recommended route for long-distance and freight traffic...
North Orbital Road and enters the borough of St Albans
City and District of St Albans
The City of St Albans , also known as the City and District of St Albans or District of St Albans, is a local government district, in Hertfordshire, England. It was created in 1974 and since then has held the status of non-metropolitan district and city. The local authority is St Albans City Council...
. Northbound traffic on the M1 cannot access the M25 at junction 6a, a mile to the north, so M1 traffic has to access junction 6 and use the A405 to reach the M25, and M25 traffic has to use the A405 to reach the M1 south. To the east of this section between the M1 and M25 is the village of Bricket Wood
Bricket Wood
Bricket Wood is a village in the county of Hertfordshire, England, approximately 4½ miles from St Albans. It is part of the parish of St Stephen. Its railway station is served by a London Midland service that runs between St Albans Abbey and Watford Junction stations.Close to the village stands...
.
The road meets the M25 at junction 21a. Joining the M25 anticlockwise here means you cannot access the M1 northbound at junction 21, as the slip road joins the M25 after the slip road from the M25 to the M1 northbound.
After the M25 junction, there are roundabouts with the B4630 for Chiswell Green
Chiswell Green
Chiswell Green is an area, originally a village, in St Albans, Hertfordshire with a population of approximately 2,800, in the City and District of St Albans.It is situated 2 miles south of St Albans on the North Orbital Road, close to Junction 21A of the M25....
, and with Tippendell Lane for How Wood
How Wood, Hertfordshire
How Wood is an Area in Park Street situated between the towns of Watford and St Albans in Hertfordshire, England. Although the area was once part of Park Street, as the residential community has expanded, it has gained a reputation as a different area....
.
It ends at what was junction 1 of the M10
M10 motorway
The M10 was a motorway in Hertfordshire running for approximately 3 miles from the M1 motorway at Junction 7 to the A414 North Orbital road at Park Street roundabout...
(now part of the A414
A414 road
The A414 is a major road in England. It runs from the A41 at a junction west of Hemel Hempstead in Hertfordshire, through the town to junction 8 of the M1 motorway at Buncefield, and running parallel to the M1 until junction 7, heading south of St Albans, east through Hatfield, Hertford, then...
), at a roundabout with the A5183 Watling Street (formerly part of the A5) and the A414 near Park Street
Park Street, Hertfordshire
Park Street is a village on the outskirts of St Albans, Hertfordshire.-Location:Park Street is situated approximately 2½ miles south of St Albans along the Watling Street, the old Roman road from London to Chester and Holyhead. It lies south of the A405 North Orbital Road and on Watling Street...
.
Former route
The £380,000 section from the Park Street roundabout to the London ColneyLondon Colney
London Colney is a village and civil parish in Hertfordshire, England. It is located to the north of London, at Junction 22 of the M25 motorway....
bypass northern roundabout opened in 1960. This is now part of the A414 and still called North Orbital Road.