Rehabilitation & Repair

Rehabilitation and upgrading of existing hydro plants is vital to ensure the continued reliable operation of these valuable assets, in addition to increasing global hydroelectric generating capacity.

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Latest Rehabilitation & Repair News

Dam Safety and Security


Collection of articles covering safety and security of dams and civil structures

Sweet Success: Rehabilitating Governor Controls at a Century-Old Facility


Upgrading from mechanical to digital controls on venerable hydroelectric generation units optimizes operation and reliability.

U.S. extends bid date for dam safety construction at Addicks, Barker dams in Texas


The U.S. Army Corps of Engineers has extended the deadline for bids for dam safety construction at Addicks and Barker dams, which protect the Houston area from flooding.

Analyzing and Repairing a Cracked Head Cover


When a condition assessment of a turbine head cover revealed multiple cracks and anomalies, Manitoba Hydro personnel learned valuable lessons regarding the importance of records management and details of historical weld procedures, as well as challenges with cast iron repair.

Power Machines begins turbine renovations at Latvia's 192-MW Kegums 2 hydroelectric plant


Russian manufacturer Power Machines has begun a renovation of three generating units at Latvia's 192-MW Kegums 2 hydropower plant.

Sayano-Shushenskaya hydropower plant's capacity upped with completion of new transmission line


A new high-voltage transmission line has allowed Russian generator RusHydro to increase the maximum output capacity of the Sayano-Shushenskaya hydropower project.

U.S. extends bidding for arc flash mitigation at 25.5-MW Minidoka, 176.5-MW Palisades hydro projects


The Bureau of Reclamation has extended bidding to provide arc flash mitigation at the 25.5-MW Minidoka and 176.564-MW Palisades hydroelectric projects in Idaho. 

U.S. seeks relays, switchgear for 21.5-MW St. Marys Falls hydro project


The U.S. Army Corps of Engineers seeks bids to replace protective relays and switchgear/motor control assemblies at the 21.5-MW St. Marys Falls hydro project on the St. Marys River at Sault Ste. Marie, Mich.

Slovenia utility extends call to refurbish 200-kW Goricane hydro project


Slovenia hydropower utility Savske Elektrarne Ljubljana d.o.o. has extended the deadline for bids for construction to refurbish the 200-kW Goricane hydropower project in Slovenia.

Ukraine seeks turbine-generator rehab at three hydro projects


Hydropower operator PJSC UkrHydroEnergo seeks bids for rehabilitation of turbine-generators at three hydroelectric projects in Ukraine.

U.S. seeks gate control system upgrade at Pennsylvania's Braddock Dam


The U.S. Army Corps of Engineers seeks bids to upgrade the gate control system of Braddock Dam in Pennsylvania.

Lake Delhi Dam failure

Work slows on Lake Delhi Dam construction after a temporary wall fails


A temporary steel construction wall placed at the site to aid installation of the new Lake Delhi Dam failed June 14.

Macedonia seeks repair of flood-damaged Pishica Dam


Macedonia's agriculture and water agency seeks bids to repair the flood-damaged Pishica Dam at Probishtip, Macedonia.

U.S. seeks firms for governor replacement at up to four hydro projects


The U.S. Army Corps of Engineers seeks information on firms able to replace governor systems at up to four hydroelectric projects in the southeastern U.S. 

U.S. seeks HVAC upgrades at 402-MW Dworshak hydro project


The U.S. Army Corps of Engineers seeks bids to upgrade the heating-ventilation-air conditioning system at the 402-MW Dworshak Dam hydroelectric project in Idaho.

Samoa extends call for reconstruction of three mini-hydro projects


Samoa Electric Power Corp. (EPC) has extended the deadline for bids to reconstruct three mini-hydropower projects totaling 4.69 MW.

U.S. seeks firms for planning, environmental, engineering work at Corps dams, other sites in Southeast


The U.S. Army Corps of Engineers seeks proposals from firms to provide planning, environmental and engineering services at hydroelectric projects, dams, and other facilities in its Savannah District.

Afghans seek procurement adviser for rehabilitation of 100-MW Naghlu hydro project


Afghanistan national utility Da Afghanistan Breshna Sherkat (DABS) invites applications from consultants to serve as international procurement adviser for rehabilitation of the 100-MW Naghlu hydroelectric project on Afghanistan's Kabul River.

Iceland utility seeks turbine-generator to expand 270-MW Burfell hydro project


Iceland utility Landsvirkjun invites applications for pre-qualification to supply a 100-MW turbine-generator for a 100-MW expansion of the 270-MW Burfell hydroelectric project on the Thjorsa River in southern Iceland. 

U.S. seeks boat barrier for 810-MW Lower Monumental hydro project


The U.S. Army Corps of Engineers seeks bids to construct a floating boat barrier across the Snake River above the 810-MW Lower Monumental Dam hydroelectric project in Washington.

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