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DEVELOPMENT AND ASPHALTING OF LOT 1 (125 KM) OF THE ARLIT-ASSAMAKA - ALGERIA BORDER ROAD

Supervision of works

Niger

Project

The project concerns the development and asphalting of Lot 1 (125 km) of the Arlit-Assamaka - Algerian border road. The road is located north of Niger and crossesthe Sahara desert.

  • The pavement structure consists of :
    • a foundation course of 30 cm thickness  of selected gravelly material
    • a base course of 20 cm thickness of soil concrete (a mixture of pit material and crushed gravel)
    • a double-layer surfacing.
  • The typical cross-section has a 7.00 m wide roadway with a double-layer surfacing and two shoulders of1.50 m width each with a single-layer surfacing.
  • 41 hydraulic structures with a submersible reinforced concrete rafts protected by gabions upstream and downstream.

Our mission

  • Supervision and monitoring of works.