The new tunnel under the River Thames in London is 25km long was built at a cost of almost £5bn.
Source: US News and Business Report -usnewsandbusinessreport.com- – BBC Science External
Inside Britain's biggest sewer under London's River Thames
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The new tunnel under the River Thames in London is 25km long was built at a cost of almost £5bn.
Source: US News and Business Report -usnewsandbusinessreport.com- – BBC Science External
Inside Britain's biggest sewer under London's River Thames