Tunnel ventilation systems provide fresh air

Elta Fans supplied specialist ventilation fans for the A3 Hindhead Tunnel in Surrey, UK which opened in July this year.
April 11, 2012 Read time: 1 min
Fans from elta provide fresh air into the uK's new Hindhead tunnel
RSS

Elta Fans supplied specialist ventilaton fans for the A3 Hindhead Tunnel in Surrey, UK which opened in July this year.

The A3, which previously ran around the Devil's Punch Bowl, a local beauty spot, now runs right under it in a 2km tunnel built by main contractor 1146 Balfour Beatty.

Ventilation contractor James Paget Services installed two sets of long-cased axial fans from Elta with matching stainless steel ancillaries to ventilate the void in the low-point sump. Each fan works for 12 hours, switches to standby for 12 hours, and then operates in the opposite direction.

The order also included four bifurcated, cylindrically cased ATEX axial fans with matching ancillaries. The bifurcated fans have been developed for handling hostile conditions of hot, dust-laden air, corrosive fumes or gases and are designed so that the gases bypass the motor.
Road Structures

For more information on companies in this article

Related Content

  • Kwikform composite bridge formwork solution
    February 27, 2012
    Composite bridge specialist falsework, Paraslim, from RMD Kwikform is being used to construct a viaduct and rail over-bridge in Wales. Paraslim is supporting the £35 million (US$55.7 million) A487 Porthmadog, Minffordd and Tremadog Bypass constructed by a joint venture partnership of Balfour Beatty and Jones Bros Civil Engineering UK.
    Read More
  • Copy of New Midtown Tunnel open in Virginia
    January 30, 2017
    A project to construct the second Midtown Tunnel link in the US state of Virginia alongside the original connection has taken an important step forward – Mike Woof writes Commuters in the US state of Virginia will be pleased that the new Midtown Tunnel is now open to traffic, as it will help to boost capacity and cut congestion on the busy US 58 route connecting Norfolk and Portsmouth. The 1.13km tunnel link has been built to link with the interchange at Brambleton Avenue and Hampton Boulevard in Norfolk
    Read More
  • Safety barriers deliver valuable road user protection
    February 14, 2012
    Safety barriers provide an invaluable service for all road users, Mike Woof reports The safety barrier market is a key one for the highway sector, with systems providing valuable protection for all categories of road users. The importance of passive protective devices such as safety barriers can often be overlooked by the road user but is well-understood by highway designers. Redirecting an errant vehicle back into the roadway and preventing it from crossing into traffic flowing in the other direction or fr
    Read More
  • Controversial Russian bridge opens
    August 10, 2018
    The first stage of a controversial Russian bridge project is now complete, with the link having been opened to use by cars and buses. The Kerch Strait bridge spans the Black Sea, connecting Russia’s Taman Peninsula in Krasnodar with Crimea, the latter having been controversially annexed by Russia from Ukraine in 2014. The official opening of the 19km-long bridge was carried out by Russia’s president, Vladimir Putin, who drove across the link in a Russian-manufactured Kamaz truck to reach the city of Kerch.
    Read More

Highlighted Content