Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive Search

Ethiopia

Ethiopia, South - et/12

Hydropower

  Invitation for prequalification, deadline 4th November, 2005 for the Halele-Werabesa hydroelectric power project in southern Ethiopia. Stage I of the scheme includes, amongst other structures, a 400 m-long 12 m-diameter river diversion tunnel; a chute spillway of about 250 m; a power intake and a concrete-lined headrace tunnel (diameter 6 m and 365 m in length); a tailrace surge chamber and an invert-lined tailrace tunnel (D-shaped, 8.05 m/7.8 m) of about 5,000 m; an underground powerhouse (length 60 m, width 20 m, height 36 m); and several access tunnels and shafts. Stage II includes, in particular, a power intake and a concrete-lined headrace tunnel (diameter 7.8 m) of about 4,260 m; a 20 m-diameter surge tank; a 295 m-long headrace pressure shaft; a tailrace surge chamber and an invert-lined tailrace tunnel of about 4,090 m; an underground powerhouse (length 71 m, width 22 m, height 37 m); and several access tunnels and shafts. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=165739-2005, OJ S 167, or contact Ethiopian Electric Power Corporation (EEPCO), Procurement Division, Head Office, Ground floor, De Gaulle Square, PO Box 1233, Addis Abeba, Ethiopia. Tel. +251 1560027, fax +251 1550822 or 1504050. 36/05.



Permalink