Underwater Work

Information about work performed under water to maintain dams and hydro facilities, such as dam inspection, dewatering, repairs and routine maintenance.

Underwater Work
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Latest Underwater Work News

Hydro equipment manufacturer Fisher passes away

Jack W. Fisher, president of underwater equipment manufacturer JW Fishers Mfg., passes away

03/13/2015

Jack W. Fisher, president of underwater equipment manufacturer JW Fishers Mfg., passed away on Feb. 20, 2015. He was 73 years old.

Buckeye Lake Dam

Corps releases Buckeye Lake Dam safety report

03/12/2015

The U.S. Army Corps of Engineers has identified "serious problems" and a "significant risk to the public" at Ohio's Buckeye Lake Dam, according to a report released this week.

Kyrgyzstan seeks underwater inspection of 1,200-MW Toktogul hydro project

02/19/2015

Kyrgyzstan utility Electric Power Plants (EPP) seeks bids to perform underwater inspection services for rehabilitation of the 1,200-MW Toktogul hydroelectric project on Kyrgyzstan's Naryn River.

French hydro utility seeks rehabilition of Balme de Rencurel Dam

02/11/2015

Electricite de France (EDF) seeks bids for reinforcement of Balme de Rencurel Dam in France by grout injections and other civil rehabilitation work.

India state seeks trash rake for 111-MW Sawra Kuddu hydro project

01/29/2015

India's Himachal Pradesh Power Corp. Ltd. (HPPC) seeks bids to supply a trashrack cleaning machine for the 111-MW Sawra Kuddu hydroelectric project in Himachal Pradesh State.

French agency seeks bottom outlet refurbishment at 5.9-MW Panneciere hydro project

01/19/2015

France's Seine River Basin agency seeks bids to rehabilitate the bottom outlet valve of the 5.9-MW Panneciere hydroelectric project on the Yonne River in France's Nievre Department.

French engineer seeks trashrack, fish passage for 8-MW Pebernat hydro project

01/16/2015

Hydropower engineer Hydrostadium seeks bids to supply and install a trashrack and downstream fish passage at the 8-MW Pebernat hydroelectric project on the Ariege River in France's Ariege Department.

Nepal seeks trash rake for rehabilitation of 144-MW Kali Gandaki A hydro project

01/06/2015

Nepal Electricity Authority (NEA) seeks bids to supply a trashrack cleaning machine as part of rehabilitation of the 144-MW Kali Gandaki A hydroelectric project on the Kali Gandaki River in western Nepal.

U.S. seeks dam safety geotechnical, drilling work

01/02/2015

The U.S. Army Corps of Engineers' Huntington District invites expressions of interest to perform dam safety geotechnical and drilling work at Corps facilities throughout the United States.

Enerquip wins contract for trashrack supply at 30-MW Ramfoss hydropower plant

12/22/2014

Norwegian operator Ramfoss Kraftlag has awarded a contract to Enerquip AS to supply a trash rake for the 30-MW Ramfoss hydroelectric plant.

U.S. seeks firms for dam safety drilling, grouting at Kentucky's Rough River Dam

11/06/2014

The U.S. Army Corps of Engineers seeks information on firms able to perform dam safety exploratory drilling and grouting at Rough River Dam in Falls of Rough, Ky.

Venezuela names Dongfang to refurbish six units at 10,300-MW Simon Bolivar hydro project

10/24/2014

Venezuela utility Corporacion Electrica Nacional S.A. (Corpoelec) has awarded a contract to Dongfang Electric Machinery Co. Ltd. of China for comprehensive modernization of six turbine-generators in Powerhouse 1 of the 10,300-MW Simon Bolivar hydroelectric project on Venezuela's Caroni River.

Using an ROV to Repair a Leaking Surge Shaft

10/10/2014

Excess seepage revealed during routine monitoring of the 1,020 MW Tala powerhouse and dam led to the use of a remotely operated vehicle to both find and repair the source of the leakage.

What's Hot in Underwater Work at Dams and Hydro Plants

09/25/2014

Divers and ROVs: A cost-effective solution when performing underwater work

More than 10,000 readers each for Hydro Review, HRW-Hydro Review Worldwide

09/03/2014

The most recent BPA Worldwide Brand Report for Hydro Review magazine reveals that the magazine issues average more than 10,400 readers, while HRW-Hydro Review Worldwide magazine has average readership of more than 10,600. HydroWorld.com, the website for these two magazines, averages more than 52,500 monthly unique browsers with nearly 172,500 average page impressions.

Slovenia utility seeks debris removal, outlet repairs at 21-MW Moste hydro project

08/27/2014

Slovenia hydropower utility Savske Elektrarne Ljubljana d.o.o. seeks bids for the second phase of rehabilitation of the 21-MW Moste hydroelectric project on Slovenia's Sava River.

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Deep Ocean's surface vessels offer new option for dam, hydropower project maintenance and inspection

08/04/2014

Manufacturing and design company Deep Ocean Engineering, Inc. displayed a number of submersible and surface remotely operated vehicles during the recent HydroVision International 2014 Conference and Exhibition in Nashville, Tenn., highlighting their applications in the areas of hydroelectric power and dam safety.

Diving In: Creative Repair Solution at Horse Mesa Dam

07/21/2014

When a unit at Salt River Project's 129-MW Horse Mesa project suffered a catastrophic failure, a creative option was needed to repair the unit, whose intake structure is 160 feet below the lake surface. The solution chosen, called "saturation diving," involved using special equipment to replicate living at underwater pressures during the task.

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Norway operator seeks trash rake, transformers, switchgear for 30-MW Ramfoss hydro project

07/14/2014

Norwegian hydro operator Ramfoss Kraftlag invites applications for pre-qualification to supply a trash rake and transformers, switchgear and controls for the 30-MW Ramfoss hydroelectric project in Norway.

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BC Hydro seeks geotechnical drilling, field testing

07/11/2014

Canadian utility BC Hydro invites applications for pre-qualification for specialized geotechnical drilling and field testing for a variety of the utility's projects and operations throughout British Columbia.

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