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West Bank
East Bank
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95 metres long
260 metres long
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Section Width
Section Height
Section Weight
Section Length
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23.9 metres
9.15 metres
approx. 30,000 tonnes each
2 sections at 126
metres
1 section at 118 metres
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Total Tunnel Length
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725 metres between portals
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Total Scheme Length
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1.5 km between Pembroke Road in Chatham Maritime and Anthony's Way in Frindsbury
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Total Scheme Cost
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£80,000,000
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Construction Began
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July 1992
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Tunnel Opened
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12 June 1996
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Each section of the tunnel weighs 30,000 tonnes - over six times
the weight of the Royal Navy frigate HMS Chatham.
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The tunnel needed 100,000 cubic metres of concrete weighing
250,000 tonnes and requiring 20,000 truck loads to deliver.
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The 1,500 miles of steel bars used to reinforce the concrete,
if laid end to end, would stretch from Chatham to Moscow.
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