Skip to main content

Algeria tunnel project nearly complete

Work on a major tunnel project in Algeria is due for completion shortly. The tunnel will commence carrying traffic during July 2016, although an official inauguration date has not so far been announced. The T4 tunnel will connect Constantine with Skikda and Annaba, which lie to the north and on Algeria’s coast. The 2.5km tunnel forms a section of the East-West highway. To cope with the tricky geological conditions in the area, both umbrella arch and composite roof bolting methods have been used to sup
June 9, 2016 Read time: 1 min
Work on a major tunnel project in Algeria is due for completion shortly. The tunnel will commence carrying traffic during July 2016, although an official inauguration date has not so far been announced.

The T4 tunnel will connect Constantine with Skikda and Annaba, which lie to the north and on Algeria’s coast. The 2.5km tunnel forms a section of the East-West highway.

To cope with the tricky geological conditions in the area, both umbrella arch and composite roof bolting methods have been used to support the tunnel profile during the excavation work.

Related Content

  • Forming iconic structures
    July 18, 2012
    Specially designed and constructed formwork is being used to create some iconic bridges worldwide The Golden Ears Bridge over the Fraser River will unite the municipalities of Richmond, New Westminister and Delta in the scenic British Columbia province of Canada. The bridge, part of a CAD$800 million (US$670 million) project, is an 'extra dosed' cable stayed bridge, which means the deck will be supported by both cables and the structure itself. This design reduces the overall height of the two towers as req
  • Black sea countries complete preparations for implementation of Black Sea Ring project
    August 23, 2016
    The Black Sea Ring Road project will improve transport connections for the region - Eugene Gerden writes. Russia has officially started implementation of a project, known as the Black Sea Ring Road, which involves building a four-lane highway system connecting the countries surrounding the Black Sea. The Black Sea Ring Road is a substantial project, a highway measuring some 7,140km in all. Among the countries participating in the project are Turkey, Georgia, Russia, Ukraine, Moldova, Romania, Greece and
  • Underground routes for highways
    July 20, 2012
    Increasingly, and where possible, roads are being built in tunnels often for environmental reasons, writes Patrick Smith As part of the new M7 motorway development in the southwest of Ireland, the four-lane route crosses the River Shannon near Limerick, before it flows into the Atlantic. Centrepiece of the 10km long Limerick Southern Ring Road is the required tunnelling (675m long), which including the north and south entrance and exit ramps, means it will be 915m long. Completion of the work is planned for
  • State of the art tunnel a conservation triumph
    May 2, 2012
    The opening of a 1.8km tunnel in southern England is designed to ease traffic bottlenecks in an environmentally sensitive area. Patrick Smith reports