Road or highway 路 United Kingdom

How much did the refurbishment of A4 Hammersmith Flyover refurbishment cost?

The A4 Hammersmith Flyover refurbishment restored a 622-metre, 16-span post-tensioned concrete structure carrying the main road between central London and Heathrow. Severe corrosion of the original tendons forced an emergency closure in December 2011. Five critical spans were strengthened in the first phase, followed from October 2013 by a full second-phase programme covering the remaining spans, new post-tensioning, bearings, expansion joints, waterproofing, drainage and resurfacing. Transport for London announced the GBP 100 million refurbishment complete on 4 September 2015.

Final project cost

拢100 million

Approximately $152.78 million

Cost basis: 2015

Hammersmith flyover, London
Patche99zPublic domain

Cost evidence

Basis of the published figure

Final project cost2015
ramboll.com

Project metrics

Key dimensions

Total lengthRamboll
622 m
MassTransport for London
150,000 kg

Project record

Timeline

  1. 2013

    Construction started

    Transport for London
  2. 4 September 2015

    Completed

    Transport for London

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