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

  • Positive finding for tunnel solution in Malta
    May 2, 2012
    A preliminary study on the proposed tunnel connecting the islands of Malta and Gozo has been carried out by Mott Macdonald. Mott Macdonald’s preliminary analysis of the Malta-Gozo undersea road link suggests that it would take 5-7 years to build a tunnel between the two islands. This report suggests a cost of €156-€492 million for a single bore three-lane tunnel on the shortest practical alignment route. Potentially, the project could be co-financed by the EU under the Cohesion Fund if a road tunnel link be
  • Ulma in Poland’s S7 tunnel
    October 22, 2020
    Construction of Poland’s longest road tunnel is progressing with an MK Formwork Carriage system from Spanish manufacturer Ulma.
  • Implementation of road building projects in Russia’s Moscow may be significantly delayed
    May 15, 2014
    Implementation of some large-scale investment projects for road building in Russia’s capital Moscow may be significantly delayed A series of major documentation issues are the cause of the problem. These have delayed projects for up to nine tenders on the total sum of US$2.6 billion (95 billion rubles), with anomalies having been found by the Russian Federal Anti-Monopoly Service.
  • Advances in tunneling technology offer efficiency
    October 18, 2017
    New developments in tunnelling technologies offer contractors greater efficiencies when constructing new bores. Tunnel boring machines (TBMs) are widely being used in major projects such as the Brenner Base Tunnel in the Austrian Alps. Full face TBMs are highly sophisticated machines featuring a rotating drilling head, which removes the material, and, depending on the type of construction, secures the excavated tunnel with shotcrete, rock bolts and wire mesh or prefabricated segments of reinforced concrete.