Towns of Kayes, Bougouni, Markala, Gao and San

Preinvestment feasibility and execution study for water supply of the towns of Kayes, Bougouni, Markala, Gao and San

Country

Mali

Name of Client

Ministère du Développement Industriel et du Tourisme

Financing sources

ADB

Association

Technital SpA – Italy (member)

Duration

02/1983 - 09/1984

Project Description

Search for water sources and utilisation of these ones; and design of catching water works and distribution networks. Elaboration of 5 Projects (one for each town)
- Hydrogeological and geophysical study for water resources search;
- Hydrological study for hydraulic situation evaluation;
- Socio-economic study;
- Preliminary Design and Feasibility Study;
- Detailed Engineering Design and Final Design;
- Tender Documents.
Town of Gao (166.250 inhabitants)
- 4 wells of 1,80 m of diameter and 40 m in depth for a total discharge of 108 l/s ;
- 3 wells of 1,80 m of diameter and 470 m in depth for a total discharge of 79 l/s ;
- Outlet of untreated water ;
- Treatment plant and return pipes ;
- 1 semi-buried reservoir of 3.700 m3 ;
- 2 water towers of 500 m3
- 0,110 km of iron diversion aqueducts with diameter of 250 - 300 mm ;
- 47,5 km PVC distribution aqueducts with diameter of 80 – 175 mm
- 6,3 km iron distribution aqueducts with diameter of 200 – 400 mm

Town of San (104.406 inhabitants)
- Direct extraction in the Bani river in Beneny, discharge 117 l/s;
- Outlet of untreated water;
- Treatment plant and return pipes;
- 1 semi-buried reservoir of 2.100 m3 ;
- 2 water towers of 500 and 400 m3 ;
- 9 km of iron diversion aqueducts with diameter of 400 mm ;
- 23,5 km of PVC distribution aqueducts with diameter of 80 – 175 mm
- 3 km of iron distribution aqueducts with diameter of 200 – 400 mm

Town of Markala (32.746 inhabitants)
- 1 well of 1,80 m in diameter and 40 m in depth, 37 l/s ;
- Outlet of untreated water;
- Treatment plant and return pipes;
- 1 semi-buried reservoir of 450 m3 ;
- 2 water towers of 400 and 150 m3 ;
- 0,110 km of iron discharge aqueducts with diameter of 200 mm
- 0.110 km iron diversion aqueducts with diameter of 200 mm ;
- 13,9 km of PVC distribution aqueducts with diameter of 80 – 175 mm
- 1,3km of iron distribution aqueducts with diameter of 200 mm

Town of Bougouni (52.705 inhabitants)
- Direct extraction in the Baulé river, discharge 61 l/s;
- Outlet of untreated water;
- Treatment plant and return pipes;
- 1 semi-buried reservoir of 2.11.300 m3 ;
- 1 water tower of 400 m3 ;
- 2,4 km of iron discharge aqueducts with diameter of 300 mm
- 2,3 km iron diversion aqueducts with diameter of 250 mm ;
- 22,5 km of PVC distribution aqueducts with diameter of 80 – 175 mm
- 1 km of iron distribution aqueducts with diameter of 200 – 300 mm

Town of Kayes (201.279 inhabitants)
- Direct extraction in the Sénégal river, discharge 238 l/s
- Outlet of untreated water;
- Treatment plant and return pipes;
- 1 semi-buried reservoir of 4.000 m3 ;
- 3 water tower of 500, 500 and 1000 m3 ;
- 1,4 km of iron discharge aqueducts with diameter of 300 mm
- 2 km of iron diversion aqueducts with diameter of 300 and 500 mm
- 38 km of PVC distribution aqueducts with diameter of 80 – 175 mm
- 5,5 km of iron distribution aqueducts with diameter of 200 – 400 mm.

Services Description

Preinvestment, feasibility and final design; drawing up of tender documents for each of the five towns.
- Socio-economic study;
- Hydrogeologic study;
- Hydrological study;
- Technical-economic and financial feasibility study;
- Final design;
- Tender documents.