|Location Map ( geo)|
|Transport for London|
|A4, A219, A306, A315|
|Junctions related to the A219|
|Junctions related to the A306|
|Junctions related to the A315|
The Hammersmith Flyover flies over a busy gyratory in Hammersmith. In December 2011, the flyover itself was closed due to being unsafe and in desperate need of repairs.
The idea of a grade separated crossing of the surface streets below what is now the Hammersmith flyover was first suggested in the late 1940s, however at this point the idea was to build a tunnel under the streets. It soon became apparent, however, that this would not be possible. The main issue was that the tunnel would have to cross beneath London Underground tracks which are in a cutting in the area, and the water table was only a few metres below the level of this cutting, which rendered a tunnel unfeasible.
It was then decided that a flyover should be built, and in 1956 the Ministry of Transport announced it would provide a grant to cover the cost of building the flyover.
The flyover was designed as the first in the UK supported only by central columns. The rationale behind this was that in order to build supporting columns in the conventional fashion, far more land would have had to have been acquired which would have made the project far more expensive.
The flyover was built by Marples, Ridgeway & Partners between 29th February 1960 and 16th November 1961 when it was opened to traffic by the chairman of the London County Council.
Closure and Repairs
The flyover was inspected during December 2011. This inspection found that cables within the structure were severely corroded. The flyover was closed for safety reasons and work soon began to strengthen the most damaged parts of the flyover in order for it to reopen in time for the 2012 Olympic Games.
Work is currently (As of September 2014) to strengthen the remainder of the structure.
The work to strengthen the flyover will mean it can remain in use for many years. In the longer term, plans exist to transfer the flyover to a tunnel. These plans were supported by Mayor of London, Boris Johnson, in March 2014.
|The WEST, Heathrow Airport|
|Central London, Olympia|