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Southwick Hill Tunnels

Owner:
Client:
Service:
Feasibility study for NATM alternative construction, design safety checks, specialist NATM consultant for construction
Estimated cost: Commencement:
December 29, 1992
Completion date:
December 29, 1994
Location:
Brighton
United Kingdom
Technical data:

Two road tunnels, dual carriageway, length of 1,280 ft (390 m) each.

Geology description:

Upper Cretaceous Chalk

Categories:
Bid cost: Final cost:
$10,000
Service areas:
Reinforcement, L.G. and wire mesh
Canopy, shotcrete portal
Typical Cross Section
Portal Structure and Start of Excavation
Shotcrete Application for Face Stabilization
View of Excavation Face showing Support Works