a3d a creative legacy: balfour beatty handout
DESCRIPTION
This document was produced by Balfour Beatty in relation to the building of the A3 Hindhead Tunnel for the school group focusing on the theme of the engineering works. For more information about the A3D A Creative Legacy project see http://a3dhindhead.tumblr.com/TRANSCRIPT
Building the A3 Hindhead Tunnel
by Balfour Beatty
Why was the tunnel built?
Reduce traffic jams
Minimise accidents
Make Hindhead village quieter
and safer
A3 Hindhead Presentation 2012
Then and now
A3 Hindhead Presentation 2012
April 2007
July 2010
Then and now
A3 Hindhead Presentation 2012
Before
During
Then and now
A3 Hindhead Presentation 2012
After
Giving the A3 back to nature
A3 Hindhead Presentation 2012
No more tarmac
Removing the tarmac
What did Balfour Beatty think about before building the tunnel?
A3 Hindhead Presentation 2012
Wildlife!
What sort of wildlife do you think we found?
Designing the tunnel
A3 Hindhead Presentation 2012
Started in 2002
Designing the tunnel
A3 Hindhead Presentation 2012
Clearing the land
A3 Hindhead Presentation 2012
Started in 2007
Digging the tunnel and building underpasses
A3 Hindhead Presentation 2012
Started in 2008
The tunnel breakthrough
A3 Hindhead Presentation 2012
February 2009
Building junctions and bridges
A3 Hindhead Presentation 2012
Started in 2009
Soil nails to hold back the earth
The finishing touches
A3 Hindhead Presentation 2012
Started in 2010
The tunnel opened in July 2011
A3 Hindhead Presentation 2012
• Thetunnelcost£371milliontobuild
• Thetunnelis1.8kmlong,that’sthesameas15footballpitches
• 856newroadsignshavebeeninstalled
• 1243potsofpaintwereusedtopaintthetunnel
• 4,752peoplehaveworkedonthescheme
• 179reptilesweremovedtoaplaceofsafety,awayfromthebuildingworks
• 7dormousebridgeswerebuilt
• Someofthetreesremovedduringsiteclearancewereusedtomakemastsforsailingboats
• 200,000newtreesandshrubshavebeenplanted