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Coordinates: 52°15′54″N 1°26′03″W / 52.26502°N 1.43420°W / 52.26502; -1.43420
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Long Itchington Tunnel

[edit]
Long Itchington Tunnel
Overview
LocationUnited Kingdom (Warwickshire)
Coordinates
52°15′16″N 1°25′09″W / 52.25446°N 1.41925°W / 52.25446; -1.41925 (south portal)
OS grid reference
StatusUnder construction
SystemHigh Speed 2
CrossesLong Itchington Wood
StartBascote
EndSoutham
Operation
Work begun3 December 2021
TrafficRail
Technical
Length1.9 km (1.2 miles)
No. of tracks2
Track gauge1,435 mm (4 ft 8+12 in)
Electrified25 kV 50 Hz AC
Operating speed360km/h (224mph)

The Long Itchington Tunnel (otherwise known as the Long Itchington Wood Tunnel) is a high-speed railway tunnel currently under construction in Warwickshire, England, and will upon completion carry the High Speed 2 (HS2) railway line under Long Itchington Wood, an ancient woodland and Site of Special Scientific Interest. The tunnel when complete will be 1.9 km (1.2 miles) long, 1.6 km (0.99 miles) of which will be bored.

Boring began with the launch of TBM Dorothy in December 2021, and was completed when the TBM broke through on the second drive in March 2023.

History

[edit]

The Long Itchington Tunnel








Bromford Tunnel

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Bromford Tunnel
Overview
LineHigh Speed 2
LocationUnited Kingdom (West Midlands, Warwickshire)
Coordinates52°30′04″N 1°50′42″W / 52.501°N 1.845°W / 52.501; -1.845 (west portal)
OS grid reference
StatusUnder construction
SystemHigh Speed 2
StartWater Orton
EndWashwood Heath
Operation
Work begun14 August 2023
TrafficRail
Technical
Length5.7 km (3.5 miles)
No. of tracks2
Track gauge1,435 mm (4 ft 8+12 in)
Electrified25 kV 50 Hz AC
Operating speed230km/h (143mph)

The Bromford Tunnel is a high-speed railway tunnel currently under construction in the West Midlands, England, and will upon completion carry the High Speed 2 (HS2) railway line under the north-eastern suburbs of Birmingham. The twin-bore tunnel will run from Water Orton to Washwood Heath, and is planned to be 5.7 km (3.5 miles) long when complete.[1]

Boring work was expected to commence in March 2023,[2] however TBM Mary Ann was only launched in August of that year. A second TBM is expected to be launched during 2024.[1]

History

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Within the original Phase One plans for High Speed 2, the Bromford Tunnel was planned to have a total length of 2.8 km (1.7 miles), running from Washwood Heath to Castle Bromwich, with the railway continuing towards Water Orton at or above grade. However, due to the amount of surface disruption this section of line would cause, HS2 applied for a Transport and Works Act Order to extend the Bromford Tunnel east for another 2.9 km (1.8 miles) on 20 January 2022.[1][3] This was approved in [insert date here][citation needed].

One new tunnel boring machine was ordered from Herrenknecht in [insert date here][citation needed], and was subsequently named Mary Ann (after Victorian writer Mary Ann Evans, more commonly known by her pen name of George Eliot) after a public consultation from local residents. This TBM was launched on 14 August, 2023.

Progress

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As of 30 August 2023, TBM Mary Ann, the first to be launched in August 2023, has progressed a total of 0.118 km (0.073 miles) from the eastern portal.[4]

HS2 Phase 1
Birmingham Curzon Street
Cross-City Line/Chase Line
Birmingham-Peterborough line/Cross Country Route
Stetchford-Aston Line
Bromford Tunnel
 M6 
West Midlands-Warwickshire border
 M6 
 A452 
 M42 
Birmingham Interchange
 A45 
 A452 
Birmingham Loop Line
Burton Green Tunnel
 A429 
Coventry-Leamington line
 A46 
River Avon
 A445 
Grand Union Canal
Long Itchington Tunnel
 A425 
 A423 
Warwickshire-Northamptonshire border
Chipping Warden Green Tunnel
Greatworth Green Tunnel
 A43 
River Great Ouse
Northamptonshire-Buckinghamshire border
 A422 
Buckinghamshire-Oxfordshire border
 A421 
Oxfordshire-Buckinghamshire border
East West Rail
 A41 
River Thame
Aylesbury–Princes Risborough line
Wendover Green Tunnel
Small Dean Viaduct
London-Aylesbury line
 A413 
Wendover Dean Viaduct
Chesham Road intervention shaft
London-Aylesbury line
Little Missenden shaft
 A413 
 A404 
Amersham shaft
 A355 
Chalfont St Giles shaft
 A413 
Chalfont St Peter shaft
 M25 
Buckinghamshire-Hertfordshire border
Hertfordshire-Buckinghamshire border
 A412 
River Colne
Buckinghamshire-Greater London border
Grand Union Canal
Copthall Green Tunnel
Metropolitan Line and Piccadilly Line
South Ruislip shaft
Chiltern Main Line
 A312 
Mandeville Road shaft
Grand Union Canal
Green Park Way shaft
River Brent
Westgate shaft
 A406 
Piccadilly Line
Victoria Road Crossover box
Old Oak Common
Canterbury Works shaft
 A5 
 A41 
Adelaide Road shaft
Euston
  1. ^ a b c "Bromford Tunnel". HS2. 13 July 2022. Retrieved 20 July 2022.
  2. ^ Hakimian, Rob (15 July 2022). "HS2 timeline of major events to 2025 revealed". New Civil Engineer. Retrieved 16 July 2022.
  3. ^ Menteth, Thames (27 January 2022). "HS2 seeks approval to extend Bromford Tunnel". Ground Engineering. Retrieved 20 July 2022.
  4. ^ "In your area map". HS2. Retrieved 18 September 2023.