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Berrygrove

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Berrygrove
Location Map ( geo)
M1 motorway - northbound at junction 5 - Geograph - 2891860.jpg
Cameraicon.png View gallery (13)
Location
near Watford
County
Hertfordshire
Highway Authority
National Highways
Junction Type
modified roundabout interchange
Roads Joined
M1, A41, A4008
Junctions related to the A4008
Before the Watford Bypass, there was nothing much here
Before the motorway there was just the A41
Aldenham Temporary Motorway Terminal was roughly located where the present northern A41 slip roads meet the roundabout
The later permanent layout, shown in 1968

Berrygrove is the original southern terminal of the M1 near Watford, now Junction 5. The roundabout and slip roads used to have motorway status and hard shoulder; the opening of the A4008 and the addition of a third circulatory lane removed them.

When the original junction was opened, it was known as Aldenham Temporary Motorway Terminal, as it was planned to be completely replaced when the M1 was extended to the south. As a terminus on the brand new motorway network, it became an accident blackspot, so the now well-established "reduce speed now" sign was trialled here.

It was originally built as a roundabout on the A41 Watford Bypass at the bottom end of the M1 in 1959. It became, on the M1's extension, an unstacked stacked-roundabout interchange (the A41 and M1 cannon). The A4008 was added later, downgrading the roundabout's motorway status.

Unrealised plans

Unrealised 1970s proposals

In the early 1970s proposals were made to improve the Watford Bypass by grade separating the junctions to enable unimpeded flow between the M1 and the A41(M)/M25 at Hunton Bridge. The M1 would have been moved to the north of the roundabout to allow a link between the M1(S) and A41(N). Preliminary plans for Bushey Interchange also include this as a potential layout at Berrygrove suggesting there would be an increase in traffic using the junction. However it was later felt undesirable to have increased amounts of through traffic using the Watford Bypass.

The M16's more northern route options passed near the junction, heavily modifying it, however these routes were soon rejected.

Routes

Route To Notes

M1

The NORTH, St Albans, (M25 East) junction 5, truck route to Park Street and Colney St

M1

C. London, Brent Cross, Harrow junction 5.

A41

(M25) (West), Aylesbury, North Watford 'The Grove' also signed as a tourist attraction.

A41

C. London, Harrow, Watford (South) truck route to Otterspool Industrial Estate

A4008

Watford town centre, Bushey 'Top Golf Game Centre' also signed as a tourist attraction

Links




Berrygrove
Related Pictures
View gallery (13)
Berrygrove 1967.PNGM1 June 1966 - Coppermine - 19295.jpgBerrygrove.jpgBgrove Sept64.jpgStAlbansBypass 1.JPG
Other nearby junctions
Watford
Junctions on the M1
Marble Arch • Hampstead • 1 Staples Corner • 2 Fiveways • Scratchwood • 4 Brockley • Bushey • 5 Berrygrove • 6 Waterdale • 6A Chiswell • 7 Beechtrees • 8 Breakspears • 9 Friars Wash • 10 Pepperstock; (10A Kidney Wood) • 11 Junction 11 • 11A Chalton • 12 Toddington • 13 Ridgemont • 14 Broughton • 15 Collingtree • 15A Rothersthorpe • 16 Kislingbury • 17 Kilsby • 18 Crick • 19 Catthorpe • 20 Misterton • 21 Whetstone • 21A Kirby Muxloe • 22 Markfield • 23 Shepshed • Long Whatton • 23A Finger Farm • 24 Kegworth • 24A Warren Lane • 25 Sandiacre • M42 • 26 Nuthall • 27 Junction 27 • 28 Pinxton • 29 Heath • 29A Duckmanton • 30 Barlborough • 31 Aston • 32 Thurcroft • 33 Catcliffe • 34 Tinsley • 35 Thorpe Hesley • 35A Tankersley • 36 Birdwell • 37 Dodworth • 38 Haigh • 39 Durkar • 40 Flushdyke • Kirkhamgate • 41 Carrgate • 42 Lofthouse • 43 Belle Isle • 44 Rothwell Haigh • 45 East Leeds Link • 46 Austhorpe • 47 Parlington • 48 Hook Moor
Former Leeds city section: 43 Stourton • 44 Belle Isle • 45 Tunstall • 46 Hunslet • 47 Holbeck
Junctions on the A41
London -
Bicester
Baker Street • Lord's Roundabout • Swiss Cottage • Brent Cross • Hendon Central Circus • Fiveways Corner • Mill Hill Circus • Apex Corner • Brockley • Hartspring • Berrygrove • The Dome • Leavesden Green • Hunton Bridge • Kings Langley • Two Waters • London Road • Bourne End • Chesham Road • Akeman Street • Tring Hill • Buckland • College Road • Woodlands Roundabout • Tesco's Roundabout • Exchange Street Roundabout • Hen and Chickens Roundabout • Henleys Roundabout • Cotton Wheel Roundabout • Rodney House Roundabout • Oxford Road Roundabout • Wendlebury
Former sectionRodney House Roundabout • Baynards Green Roundabout • Banbury Cross • M40 Junction 13 • Barford • Longbridge Island • Stanks Interchange • Copt Hill
Solihull -
Birkenhead
Copt Hill • Hockley Circus • West Bromwich Interchange • All Saints Interchange • Albion Roundabout • Swan Roundabout • Navigation Roundabout • Parkway Roundabout • Steel Roundabout • Patent Shaft Roundabout • Moxley Junction • Oxford Street Island • Bilston Street Island • Chapel Ash Island • Tong Interchange • Pickmere Roundabout • Tern Hill Roundabout • Prees Heath • Hampton Heath Roundabout • Broxton Roundabout • Boughton Heath Roundabout • Hoole Roundabout • Backford Cross • Hooton Crossroads • M53 Junction 5

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