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. seeks wire rope, load testing for intake crane at 2,160-MW John Day Dam

08/27/2013

The U.S. Army Corps of Engineers seeks bids to replace wire rope and perform load testing for an emergency intake crane at 2,160-MW John Day Dam on the Columbia River in Oregon.

Seven submit bids for Agus 6 hydro turbine upgrade project

08/27/2013

State-operated utility Power Sector Assets and Liabilities Management Corporation (Psalm) has announced seven companies have bid to upgrade units at the Philippines' 200-MW Agus 6 hydropower plant.

Dam Safety & Security

08/27/2013

Isabella Dam undamaged after earthquake

The Leading Edge

08/27/2013

Lucid Energy honored for environmental sustainability

Sticky Wickets: Repairing Failed Stator Core Bolts at Thompson Falls

08/27/2013

A routine inspection of Unit 7 at PPL Montana's Thompson Falls facility revealed a broken stator core bolt.

Using Distributed Sensing for Generator Condition Monitoring

08/27/2013

A new technology based on extended cavity sensors and optical fiber could be used to provide distributed sensing of vibration in the stator of hydroelectric generators.

Rehabs Squeeze More Power from Existing Plants

08/27/2013

The rehabilitation work under way at three existing hydroelectric plants in the U.S. provides a good example of what work is being performed and the benefits that can be expected from this type of activity.

Sinkholes and Seepage: Embankment Repair at Hat Creek 1

08/27/2013

When a sinkhole caused a seepage issue at the Hat Creek No. 1 forebay, a geotechnical investigation and a unique engineering solution were required to design and construct a solution to the problem that would prevent future sinkholes and seepage.

U.S. extends bidding to refurbish transformers at 1,076.6-MW Bonneville Dam

08/27/2013

The U.S. Army Corps of Engineers has extended the deadline for bids to refurbish generator step-up transformers at the Second Powerhouse of 1,076.6-MW Bonneville Lock and Dam in Oregon and Washington.

India state extends bidding to refurbish 51-MW Dhalipur, 33.75-MW Dhakrani hydro projects

08/27/2013

State utility Uttarakhand Jal Vidyut Nigam Ltd. (UJVNL) has extended the deadline for bids to refurbish the 51-MW Dhalipur and 33.75-MW Dhakrani hydroelectric projects in India's Uttarakhand State.

NIEA awards contract for historic hydropower project restoration

08/26/2013

The Northern Ireland Environment Agency (NIEA) has awarded a US$1.99 million contract to Farrans (Construction) Ltd. to restore a historic hydroelectric project at Roe Valley Country Park in Limavady, County Londonberry.

U.S. seeks bids to refurbish trashracks at 120-MW Parker Dam

08/23/2013

The Bureau of Reclamation seeks bids to refurbish trashracks at 120-MW Parker Dam on the Colorado River. Bids are due Sept. 5.

U.S. again extends dam safety cutoff wall bidding for East Branch Dam

08/22/2013

The U.S. Army Corps of Engineers approved a further extension of the bidding deadline for dam safety work to construct a deep cutoff wall at East Branch Dam on the East Branch Clarion River in Pennsylvania.

Drilling work begins at 1,900-MW Kambarata 1 hydropower plant

08/22/2013

Drilling work has begun at the site of Kyrgyzstan's 1,900-MW Kambarata 1 hydropower plant, the country's Ministry of Energy and Industry reported.

U.S. seeks painting, rehab of gates at Carlyle Lake Dam

08/22/2013

The U.S. Army Corps of Engineers seeks bids from small businesses to paint and rehabilitate four main dam tainter gates at Carlyle Lake Dam on Illinois' Kaskaskia River.

Liberia seeks to refurbish gates, penstocks at 60- to 80-MW Mount Coffee hydro project

08/21/2013

The government of Liberia invites applications for pre-qualification to refurbish or install new gates, penstocks, and other hydraulic steelwork at the 64-MW Mount Coffee hydroelectric project in Liberia.

U.S. again extends bidding for dam safety seepage barrier at Ohio's Bolivar Dam

08/21/2013

The U.S. Army Corps of Engineers again extended the deadline for bids to construct a dam safety seepage barrier at Bolivar Dam, a flood control structure in northeastern Ohio.

U.S. seeks gate bulkheads for Mississippi River dam

08/20/2013

The U.S. Army Corps of Engineers seeks bids from small businesses to supply six tainter gate bulkheads for Mississippi River Lock and Dam 25 near Winfield, Mo.

U.S. seeks spillway fix for fish passage at 603-MW Ice Harbor Dam

08/19/2013

The U.S. Army Corps of Engineers seeks bids to modify a spillway to improve fish passage at 603-MW Ice Harbor Dam on the Snake River in Washington.

Reclamation awards contract for hydropower plant asbestos removal

08/19/2013

Asbestos and Technical Services LLC has won a US$37,810 contract for the removal and disposal of asbestos at or near the locations of several major Bureau of Reclamation hydropower projects.


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