September 1973 to June 1974 Chad ASECNA (Paris) Engineer in charge of new works and maintenance of aerodromes Preparation of markets.
Construction of the Fort-Dauphin terminal,
Transformation of the technical block of Ndjaména,
Extension of the Ndjaména Power Plant,
Maintenance work on housing and technical buildings of the various aerodromes. Financing France; Total amount of works: 1 Million euros
September 1990 to December 1990 TCHAD GAUFF Engineer (Essen Germany) Head of mission Study of the protection of the banks and the Chagoua bridge in N'Djaména,
Establishment of plans and written documents,
Constitution of the tender dossier.
August 1998 to September 1999 TCHAD SGI (Switzerland) Head of Mission of works control Development works of the polder of Mandi to bowl.
Construction of 5 sand dikes for a volume of 350,000 m3.
Establishment, research of sand materials.
Control of the implementation and compaction of materials.
Embankment of dikes on loamy soil
. Participation in the technical analysis of the offers for the supply of PVC pipes (60 km), valves, flow distributor etc. for the irrigation of the polder by the Californian system.
Establishment of monthly reports on the activity of the Control mission.
Amount of works: 1 Billion Euros