HS2 Completes 700-Metre Green Roof Tunnel at Burton Green

HS2 Ltd completed the UK’s 700-metre Burton Green tunnel in 2025 and will add a 500-metre green roof to restore the Kenilworth Greenway near Kenilworth.

HS2 Completes 700-Metre Green Roof Tunnel at Burton Green
August 1, 2026 11:12 pm | Last Update: August 1, 2026 11:13 pm
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⚡ In Brief: The 700-metre-long, 16-metre-wide twin-box Burton Green tunnel on HS2 is now structurally complete, with a 500-metre green roof installation set to restore the Kenilworth Greenway near Kenilworth, UK.

KENILWORTH, UK – The 700-metre-long Burton Green tunnel, part of the High Speed 2 project, reached structural completion in late 2025. The 16-metre-wide twin-box structure will carry high-speed trains beneath the village of Burton Green, with a 500-metre green roof now being prepared to integrate the railway into the landscape.

What Is the Full Scope of This Project?

The project includes a cut-and-cover tunnel designed to separate northbound and southbound trains via an internal wall, serving the London–West Midlands corridor. Above ground, a 500-metre green roof with native trees and shrubs will reinstate the Kenilworth Greenway, linking Balsall Common to Kenilworth for walkers, cyclists and horse-riders. Beyond the structure, HS2 demolished the old village hall, funded a £2.5 million replacement, bought homes within 120 metres of the line, and constructed a two-mile cycle path between Burton Green and Berkswell (Source: The Guardian, 12/2025). Excavated material was reused in landscaping, and a temporary Greenway route was maintained throughout construction.

Key Project Data

ParameterValue
Project / Contract NameHS2 Burton Green Tunnel
Total ValueNot disclosed
Parties InvolvedHS2 Ltd (client), Balfour Beatty VINCI (construction), Mott MacDonald/SYSTRA (design JV), Galldris Group (main civils subcontractor)
Timeline / CompletionStructural completion: 2025; green roof: 2026; HS2 Phase One: 2029–2033
Country / CorridorUnited Kingdom, Phase One (London–West Midlands)

How Does This Compare to Similar Projects?

Burton Green is one of five HS2 green tunnels. Its 700-metre length equals the Copthall and Wendover green tunnels but is less than a third of the Chipping Warden tunnel (2.5 km) and roughly half of Greatworth (1.5 km), according to HS2 Ltd data. All share a twin-box cut-and-cover design with vegetated roofs, though Chipping Warden’s wider corridor required different engineering. Globally, high-speed rail investment rose 24% in 2025, with Europe accounting for 22% of rail modernisation projects (Source: BusinessResearchInsights, 2025). Individual green tunnel costs have not been published by HS2 Ltd.

Editor’s Analysis

Completion of Burton Green tunnel gives HS2 a tangible milestone amid CEO Mark Wild’s cost reset, but the £2.5 million village hall and home buyouts highlight the steep community price. Guardian reports of residents calling the construction “desecration” point to lingering reputational risk even as landscaping advances. With Asia-Pacific leading 63% of high-speed rail activities and the global market projected to reach USD 99.35 billion by 2034, HS2’s green tunnel strategy aligns with sustainability expectations—yet local opposition could intensify scrutiny on future phases.

FAQ

Q: When will high-speed trains run through the Burton Green tunnel?
A: HS2 Phase One between London and Birmingham is scheduled for completion between 2029 and 2033; no separate opening date for the tunnel has been confirmed.

Q: What is the Kenilworth Greenway and how will it change?
A: The Kenilworth Greenway is a walking, cycling and horse-riding track. It will be reinstated above the tunnel on a 500-metre green roof, reconnecting Balsall Common to Kenilworth via Burton Green.

Q: How did HS2 compensate the local community during construction?
A: HS2 funded a new £2.5 million village hall to replace the demolished one, purchased homes within 120 metres of the railway, and provided a temporary cycle path. A temporary Greenway route was also maintained.

Railway infrastructure, rolling stock and transport technologies specialist focused on global rail industry developments, high-speed rail systems, signaling technologies and freight transportation. Covering railway investments, public transport modernization, rail operations and international mobility projects across Europe, Asia and North America.