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

U.S. sets site visit on generator step-up transformers for 1,780-MW Dalles Dam


The U.S. Army Corps of Engineers has scheduled a site visit on a request to supply 19 transformers for 1,780-MW Dalles Dam on the Columbia River.

Corps awards contract for Chief Joseph hydropower plant gate maintenance


The U.S. Army Corps of Engineers has awarded a $15.8 million contract to Garco Construction Inc. to perform spillway gate lifecycle maintenance at the 2,620-MW Chief Joseph hydroelectric plant in Washington.

Canada utility seeks spare generator stator for 133-MW Great Falls hydro project


Canadian utility Manitoba Hydro seeks bids to design, supply and assemble a spare generator stator for the 133-MW Great Falls hydroelectric project in Manitoba.

Pakistan seeks flow measuring system for 1,450-MW Ghazi Barotha hydro project


Pakistan's Water and Power Development Authority (WAPDA) seeks bids to supply a flow measuring system for the 1,450-MW Ghazi Barotha hydropower project.

Andritz to rewind Unit 3 at Corps' 402-MW Dworshak hydropower plant


The U.S. Army Corps of Engineers has awarded a $10.1 million contract to the Andritz Hydro Corp. to replace generator windings on the Unit 3 turbine-generator at the 402-MW Dworshak hydropower plant.

U.S. seeks turbine headcovers for 1,780-MW Dalles Dam


The U.S. Army Corps of Engineers seeks bids to supply turbine headcovers and related equipment for the 1,780-MW Dalles Dam hydroelectric project on the Columbia River.

Agile Infrastructure wins Corps contract for hydropower plant, dam rehab in South Atlantic Division


The U.S. Army Corps of Engineers has awarded a maximum $45 million contract to Agile Infrastructure Services LLC for construction, rehabilitation and other work at hydropower plants, dams and other facilities in its South Atlantic Division.

Lender seeks watershed management aid for 144-MW Kali Gandaki A hydro project


The World Bank invites expressions of interest to provide technical assistance to rehabilitation of Nepal's 144-MW Kali Gandaki A hydroelectric project in the form of watershed management investment prioritization.

Paraguay seeks expansion, hydrological studies for 200-MW Acaray 1 and 2 hydro projects


Paraguay utility Administracion Nacional de Electricidad (ANDE) invites expressions of interest to assess potential for expansion and to conduct hydrological studies for the 200-MW Acaray 1 and 2 hydroelectric projects on Paraguay's Acaray River. 

AFD financing to help rehab Pakistan's 243-MW Warsak hydropower plant


The French Agency for Development has guaranteed a loan worth up to about US$46.3 million to help Pakistan rehabilitate its 243-MW Warsak hydropower plant.

L&S wins contract for governor, control replacement at four USACE hydropower plants


L&S Electric has won a $3.5 million contract to replace governor and control systems at up to four hydroelectric projects in the southeastern United States.

U.S. extends call for intake gates, draft tube bulkheads for 2,160-MW John Day Dam


The U.S. Army Corps of Engineers has extended the deadline for bids to supply intake gates and draft tube bulkheads for turbine maintenance at 2,160-MW John Day Dam on the Columbia River in Oregon. 

Venezuela uses a ROV to inspect Guri Reservoir infrastructure amidst water level decline


Venezuela's government is taking measures to inspect the infrastructure of the country’s main hydroelectric-related civil structure as rising temperatures, reduced precipitation and increased energy demand affect water levels at the 4,000-square-mile Guri Reservoir.  

U.S. seeks information on 18 proposed generator overhauls at 6,809-MW Grand Coulee hydro project


The Bureau of Reclamation requests information from industry sources on its plans to modernize generators G1-G18 at the 6,809-MW Grand Coulee Dam hydroelectric project.

Extending the Life and Reliability of Circuit Breaker Protection


Simplifying Generator Circuit Breaker Life-Extension and Modernization Hydroelectric projects that have aged circuit breakers must deal with age-related issues and learn present possible improvements associated with modernization and conversions of various types of older circuit breakers that are used to protect generator circuits.

An Uplifting Experience


Things in Texas sometimes are bigger by comparison, and Mansfield Dam is no exception. Assessing its foundational stability is paramount because Mansfield is the tallest dam in Texas at 278 feet and is classified as high hazard by the Texas Commission on Environmental Quality.

Macedonia awards repair contract for damaged Pishica Dam


Macedonia's Ministry of Agriculture, Forestry and Water Economy has awarded a US$1 million contract to DGTT Trans Met DOO to repair the flood-damaged Pishica Dam in Probishtip.

Afghans seek civil engineer to oversee substation rehab at 100-MW Naghlu hydro project


Afghanistan national utility Da Afghanistan Breshna Sherkat (DABS) invites expressions of interest from consultants to serve as supervisor civil engineer to oversee rehabilitation of a 110-kilovolt transmission substation at the 100-MW Naghlu hydroelectric project on Afghanistan's Kabul River.

ASDSO awards NYCDEP’s Gilboa Dam its 2015 National Rehabilitation Project of the Year


On Monday, Sept. 14 during its annual meeting awards ceremony held this year in New Orleans, La., the Association of State Dam Safety Officials presented its 2015 National Rehabilitation Project of the Year award to the New York City Department of Environmental Protection’s Gilboa Dam.  

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