Bids sought for Phase 1 to increase height of Afghanistan’s Dahla Dam

The U.S. Army Corps of Engineers seeks bids to construct an intake structure and outlet works in the first phase of a project to increase the height of Afghanistan’s Dahla Dam, an irrigation project with three small hydroelectric generators. Bids are due September 4.

The Corps conducted a pre-bid “industry day” conference on the project in March. It also took information in February on firms capable of increasing the height of Dahla Dam, on the Arghandab River about 34 kilometers northeast of Kandahar.

Dahla Dam supplies irrigation water and a small amount of hydropower, and is being considered to supply municipal water. The reservoir has lost about 30 percent of its storage capacity due to sedimentation. In a Canadian government initiative, a joint venture of SNC-Lavalin and Hydrosult managed rehabilitation of Dahla Dam to restore irrigation water to the area.

The Corps now plans to increase the height of Dahla Dam at least 5 meters with an option for an additional 3 meters. In preparation for that, the Corps seeks bids for intake structure and outlet works to accommodate an 8-meter increase, extending from the intake structure downstream to the outlet valve house. It also covers dam safety instrumentation, geotechnical investigation, emergency closure gates, flow regulating valves, a hydropower turbine, diesel generator, and ancillary equipment and structures. A new valve house will be powered by a new hydroelectric turbine.

Requiring 860 days, the work is valued at $25 million to $100 million.

A solicitation notice may be obtained from the Federal Business Opportunities Internet site,, by entering Solicitation No. W5J9LE12R0078 in the “Keyword/Solicitation #” box. Bidders are strongly encouraged to take part in a site visit. Those interested should contact immediately Linda Murphy, (1) 540-722-6843, E-mail:

Bids are due September 4. For information, contact Nicholas Emanuel, U.S. Army Corps of Engineers District, Kandahar, 0003 HQ HHC ARCENT Kandahar, OEF Multi-class SSF AWCF Kandahar, APO AE, AF 09355; (1) 540-667-6581; E-mail:

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