Road or highway · United Kingdom

What is the contract value of A38 Marsh Mills viaduct replacement?

The A38 Marsh Mills viaduct replacement renewed two defective slip-road viaducts east of the Marsh Mills roundabout in Plymouth. The original 1969–70 structures had developed extensive cracking from alkali–aggregate reaction. A design-and-build contract was awarded to Hochtief in March 1994, with Tony Gee responsible for the replacement design. The work culminated in a record-setting sideways slide of a 410-metre, 5,500-tonne bridge while limiting the principal road closure to 48 hours, and the project was completed in 1996.

Contract value

£12.2292 million

Approximately $18.72 million

Cost basis: 1994

A38 at Marsh Mills Junction
David DixonCC BY-SA 2.0

Cost evidence

Basis of the published figure

Contract value1994
hansard.parliament.uk

Project metrics

Key dimensions

Total lengthmageba
410 m
Massmageba
5,500,000 kg

Project record

Completed

Tony Gee

1996

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