This project will improve drainage capacity in this flood channel area of the Little Susitna River. This will involve clearing the right-of-way, elevating the surface of the road and deepening and widening the ditching on either side of the road.
(Photo below is the roadway close to being overtopped)
The existing cross culverts also need to be enlarged to accommodate flood events.
(Photo below is culvert at capacity)
After construction, rip rap will be added to stabilize the soil on road embankment sides and around the culvert to protect from fast flowing water.
Bob Walden, MSB Project Manager
Brad Sworts, Manager
Pre-Design & Engineering Division
Capital Projects Department


The diagram above shows a
cross section of the Liquid Ring Vacuum Pump. It operates
on the rotary liquid piston principle, the shaft and the
impellers being the only moving parts.
The shaft and impeller assembly is mounted
eccentrically relative to the pump casing. As the
impeller rotates the service liquid ( which is
continually supplied to the pump ), is forced outwards by
centrifugal force to form a liquid ring revolving
concentric to the pump casing.
Because of the eccentric position of the impeller, the
liquid ring will move towards and away from the shaft,
resulting in a liquid piston action which displaces the
air or gases between the spaces of the impeller blades.
As the impeller rotates, the liquid is
thrown out by centrifugal force and air is drawn in
through the suction port. After the suction port is
passed, the service liquid is forced back into the spaces
between the impeller blades, gradually compressing the
air or gases. When the spaces between the impeller blades
reach the discharge point, the liquid ring will force the
air compressed between the blades into the discharge


The Diamer Basha Dam Project is being developed on the Indus River near Chilas, in the Khyber Pakhtunkhwa and Gilgit-Baltistan regions
The Pakistan Water and Power Development Authority (WAPDA) has awarded a contract, worth Rs442bn ($2.73bn), to a joint venture of Power China and Frontier Works Organisation (FWO) for the construction of the Diamer Basha Dam Project.
Under the contract, the joint venture will construct diversion system, main dam, access bridge and 21MW Tangir hydropower project.
WAPDA chairman Muzammil Hussain said that the Diamer Basha Dam will support economic development and social uplift of the country.
The $14bn Diamer Basha is a multi-purpose mega-dam project planned to be developed on the Indus River near Chilas, in the Khyber Pakhtunkhwa and Gilgit-Baltistan regions of Pakistan.
$14bn Diamer Basha mega-dam project to be commissioned in 2028
Scheduled for completion in 2028, the project will have 4.5GW of power generating capacity and a gross storage capacity of 8.1million acre feet (MAF).
WAPDA said it has already signed consultancy services contract, worth Rs.27.182bn ($131.1), with Diamer Basha Consultants Group (DBCG) for the Diamer Basha Dam.
The scope of the contract includes construction design, construction supervision and contract administration of Diamer Basha Dam Project.
In 2018, the Executive Committee of the National Economic Council (ECNEC) of the Government of Pakistan approved £2.34bn financing to fund the preliminary dam construction phase of the Diamer Bhasha project.
The Diamer Bhasha Dam will be located on the Indus River, in the Diamer district of Pakistan’s Gilgit-Baltistan province, approximately 315km upstream of the Tarbela Dam and 40km downstream of the Chilas town.
It also includes two powerhouses that are planned to be developed in Kohistan, in the neighbouring Khyber Pakhtunkhwa province.


About Hydroelectric Power
The power station in which electricity is generated by using hydropower is termed as hydroelectric power station. It is widely used source of renewable energy. The Asia-pacific region genearates 32% of the global hydropower. The energy or power which is obtained at the end is termed as hydroelectric power.


Following the upgrading of generators, the installed hydropower generation capacity of the Grand Ethiopian Renaissance Dam (GERD) has been increased to 6,450MW.
Initially, the dam was designed to generate 5,250MW. However, due to the upgrading made on the power plant, its generation capacity raised to 6,000 MW from 5,250 MW.
But six years later, the total installed generation capacity of the dam has been increased by additional 450MW as a result of the improvement made on generators to boost the capacity of the power plant.
Following the upgrading made twice, the electricity generation capacity of the dam increased by a total of 1,200 MW, which is equivalent to the power being generated from Tekeze, Beles and Gibe-II hydropower plants.
Ethiopia is preparing to celebrate the 6th anniversary of the commencement of the construction of the dam with various fund-raising programs.
In a press conference organised with respect to the anniversary, Minister of Communication and Information Technology, Dr Debretsion Gebremichael, announced a 56 percent completion of the dam.
According to the Minister, works are also nearing completion to enable the dam to generate 750MW in advance.
“Construction of power receiver and transmission stations as well as installation of power transmission lines have been fully completed. The only thing left is fixing the two turbines that generate 375MW each,” he said.
The next step is enabling the dam to hold water, he said, indicating the final preparation being made by the government to facilitate ways in which the filling of the dam’s reservoir will take place.
“We are preparing to discuss with the governments of Sudan and Egypt,” he said, reiterating that “the dam doesn’t cause any significant harm on the lower riparian countries.”
The construction of the dam is being funded by the people and government of Ethiopia.
According to Debretsion, the people of Ethiopia have continued their support to the construction of the dam through environmental conservation activities and the purchase of dam bonds.
He said the people have so far contributed 9.4 billion birr for the dam.
Office of the National Council for the Coordination of Public Participation on the Construction of the Dam recently said various fund raising programs will be carried out in connection with the 6th anniversary of the dam.
The office planned to collect 1.8 billion birr from the fund raising programs.
The Grand Ethiopian Renaissance Dam (GERD) is being built in Benishangul Gumuz regional state, approximately 500 km northwest of the capital Addis Ababa.
At the end of the works, GERD will be the largest dam in Africa.


Links to Products:
D-060 NS M1 / D-060 M1 / D-060 / D-070
Install combination air valves or air & vacuum valves to prevent slamming. This is a requirement for the pumping stations at the entrance to the desalination plant in order to prevent down surges and up surges in the system and to release air.
The air valve material cast type depends on the level of chlorides in the water; the air valve diameter depends on the system flow rates and the hydraulic conditions of the system.


The total electricity generation capacity of Tarbela Power House will jump to 6,418 megawatts (MW) from the existing 4,888 MW after the commissioning of the Tarbela 5th Extension Project scheduled to be completed in 2025. Official sources told APP here that the cumulative generation capacity of the project stood at 1530 MW with three generating units of 510 MW each. On completion, the project would provide 1.347 billion units of environment-friendly and low-cost hydel electricity to the National Grid on average every year. WAPDA is constructing the Tarbela 5th Extension Hydropower Project on Tunnel No. 5 of Tarbela Dam. World Bank and Asian Infrastructure Investment Bank (AIIB) are providing financial assistance for the project to the tune of US$ 390 million and US$ 300 million respectively.


In 1935 construction started on a massive New Deal project proposed by FDR in Passamaquoddy Bay. The Quoddy Dam Project would have stored the rising tide behind multiple dams and then slowly released the water through turbines, producing electricity. But…
By Kristin Miller
Maine company deploys nation’s first commercial, grid connected tidal energy project.
Support Provided By: Learn more


Plastic Grout Flow Cone Set
The polyethylene plastic grout flow cone set with stainless steel orifice is economically priced, simple to use and easy to clean. Designed for field measurements of flowability of fluid hydraulic grouts used in pre-placed aggregate concrete. The flow cone method is for use with grouts having 35 seconds or less efflux time.
• Flow Cone – stainless steel discharge orifice with cap
• Large steel ring with stand
• Point gauge level indicator
ACM-FC-R Large Steel Ring with Stand
ACM-PG-1 Point Gauge Level Indicator


HCC Bags Contract From JKSPDCL Worth INR 8103.7 Million
Hindustan Construction Company has been awarded a contract worth INR 8103.7 million by Jammu & Kashmir State Power Development Corporation Limited (JKSPDCL). The contract is for construction of the 93 MW (3x31 MW) New Ganderbal Hydro Power Project on Sind River in Central Kashmir on EPC basis. The work is to be completed in 48 months.
The New Ganderbal is run off the river hydro power project on Sind River, a tributary of River Jhelum. The scope of work includes planning, design, engineering and execution of civil and infrastructure works as well as manufacturing, assembling, inspection, testing and commissioning of electro-mechanical and hydro-mechanical equipments.
Commenting on new order win, Mr. Arun Karambelkar, President & CEO, HCC Ltd. said "This prestigious contract demonstrates our EPC expertise in the hydro power sector.With a wide array of competencies for building various modules of hydroelectric projects, HCC has garnered expertise and distinction through complex project management in every step of engineering, procurement and construction."
Over the last nine decades, HCC has constructed over 25 per cent of India's installed hydroelectric power capacity with in-depth knowledge of the nation's diverse terrain. In last fifteen years, the company has completed 13 hydro power projects including 2 projects in Bhutan and is currently engaged in construction of 9 projects of which 2 are in Bhutan. In Jammu & Kashmir, HCC has been operating since over 5 decades and has built one third of the hydro power capacity of the state.
- Issued By:JAMMU AND KASHMIR STATE POWER DEVELOPMENT CORPORATION LIMITED
- Bagged By:
- Region:Northern India
- State:Jammu and Kashmir
- Value:INR 8103.7 Million
- Published On:2017-08-10


High Volume Pump with Locking Flow Valve Assembly
The high volume rotary vane pump with locking flow valve is durable and economical with a 1/10 hp motor. With supplied locking valve, users are supplied with a sufficient adjustable flow of 0 LPM - 40 LPM.
- One Rotary Vane High Volume Pump
- One Locking Flow Valve
- One Sampling Pump Filter Glass Jar


Search > Hydropower
May 26, 2020AfDB Funds Madagascar’s Sahofika Hydropower Project
The project is aligned with Madagascar’s energy policy.
May 7, 2020Zambia’s Hydropower Plant Increases Power Generation Capacity
The primary objective of the hydropower plant is to produce power to meet consumer needs.
January 16, 2020Rwanda Receives $8.92 million for Hydropower Project
The plant will provide Rwanda, Burundi and the Democratic Republic of Congo with electricity.
February 27, 2019Sinohydro to construct hydropower plant in Senegal
Koukoutamba’s project will be the fourth and largest hydropower plant on the river.
January 21, 2019South Africa could increase power purchases from DRC Hydropower plant
The country may double its offtake to 5,000MW.
January 16, 2019Tanzania: Construction to begin at Rufiji hydropower plant
The mega-project will be completed in 2022.
December 3, 2018Equatorial Guinea: Djibloho hydropower plant completed
The project is expected to significantly boost the country’s economy.
November 20, 2018Tanzania: Preparations for hydropower plant underway
Construction on the Rufiji hydropower plant to commence.
October 31, 2018Gabon To Build Oil and Hydropower Plants
The Central African country is developing two hydropower plants and one water production unit.
May 7, 2018Hydropower: A Risky Business
Though it has great potential, hydropower has a critical downside — when it doesn’t rain, the power stops.


August 19, 2019. As part of the construction of the second stage of the Dniester PSPP as part of the fourth hydraulic unit, a T-4 block power transformer, one of the main elements of the power distribution and consumption circuit from the hydraulic unit, arrived from Zaporozhye (Zaporozhtransformator PJSC) to the Dniester PSPP. Connected to the generator-motor on the one hand and to the 330 kV switchgear on the other, the transformer will increase the voltage to 330,000 volts.
July 1, 2019 as part of the construction of the second stage of the Dniester PSPP as part of the fourth hydraulic unit, the lower ring of the guide vane of the hydraulic unit No. 4 was installed. The mass of the mounted part of the hydraulic machine is more than 130 tons. The Consortium RPA Ukrgidroenergobud ensured the construction readiness of the hydraulic unit mine.
On December 11, 2018 stator of turbine with the elements of spiral case was mooved from an erection site to the mine of hydroelectric generator №4. All pre-arranged building and installation works were executed in the mine of hydroelectric generator for providing move of stator of turbine weighing 287 tons.


Your Name (required)
Your Email (required)
Crepaco, Positive Pump model R3, stainless steel, 1.5″ bevel seat ports with 1.5″ pump opening, bottom shaft
Crepaco, .75 HP Positive Displacement Pump, 1.75″ inlet & outlet
Tri Clover, 3 HP Positive Pump model 216
Ivarson Sta-Flow, Positive Displacement Pump model RS150, stainless steel, delicate product design pump, 3″ bevel seat ports, on stainless steel base with parallel gear head motor.


The gigantic Three Gorges will be dammed for the second time in mid or late November, Guo Shuyan, director of Three Gorges Project Construction Committee, said Tuesday.
The Three Gorges Project Construction Committee is a body under the State Council, China's cabinet, and is in charge of the construction of the Three Gorges dam and reservoir.
The completed sections of the dam, the world's largest, were left unscathed by nearly the worst ever floods on China's longest river, the Yangtze, this summer.
The Yangtze will be dammed again for the third-phase construction on the 665-meter section to complete the 2,309-meter-long dam, the country's largest water conservancy project on the middle reaches of the Yangtze River.
Situated in the western Yichang area, central China's Hubei Province, the project consists of a 2,309-meter-long by 185-meter-high dam and 26 generating units with a combined capacity of 18.2 million kilowatts.
Upon completion in 2009, the project will be able to generate 84.7 billion kilowatts of electric power annually. Its permanent locks will allow ships of more than 10,000 DWT (dead weight tonnage) to pass. By the end of August, approximately 70 percent of the dam had been completed. According to the design plan, the dam should be able to withstand the heaviest floods which take place once every 10,000 years.
During the flooding, the cofferdams were demolished to test the dam's water tightness, and results proved to be very satisfactory.
The cofferdams had been built to allow normal navigation during the 17-year construction period. When the mainstreams of the Yangtze River were blocked in November 1997, the cofferdams were constructed on the river's left bank to form a pit in which the 1,600-meter left section of the dam and a powerhouse were built.
The second damming will block the water diversion canal, 3.7 kilometers long and 350 meters wide, which was built to serve as the only navigable channel for ships and boats from 1997 to 2002.
The second damming is more technologically demanding considering it will be conducted on the bare rock riverbed of the canal with stronger currents, according to Guo.
The damming date is dependent on water changes, but was best during a thin flow period, Guo added.
So far sand and rocks for the damming have been set in place.
The project is expected to reach the next year's three scheduled goals -- water storage, navigation and power generation.
(People’s Daily September 11, 2002)


Stone Tavern Lake, northcentral New Jersey
Stone Tavern Lake is formed by Assunpink #19 Dam on Assunpink Creek in Monmouth County, New Jersey and is used for recreation purposes. Construction was completed in 1971. At normal levels it has a surface area of 56 acres. It is owned by Division Of Fish and Wildlife.
Assunpink #19 Dam, also known as Stone Tavern Lake is of earthen construction, a gravity dam. The core is earth. The foundation is soil. Its height is 36 feet with a length of 715 feet. Maximum discharge is 120 cubic feet per second. Normal storage is 490 acre feet. It drains an area of 1.7 square miles.
Lakes, Dams, and Recreational Facilities Near Stone Tavern LakeRising Sun Lake Assunpink Site 5 Lake Assunpink Imlaystown Lake Etra Mill Dam Red Valley Dam Peddie Lake Indian Dam Allentown Dam Prospertown Dam Assunpink # 6 Dam Brainard Lake Cream Ridge Dam W.S. Zeuner Dam Millhurst Lake Honey Lake Englishtown Lake Kennedy Pond Assunpink #21 Dam Jacksons Mills Dam Grover S Mill Dam Manalapan Lake Gropps Lake Collier Mills Dam Assunpink #8 Dam Oakford Lake Lake Mercer Plainsboro Pond Success Lake Lake Topanemus Brindle Lake Helmetta Dam Brindle Lake Bunker Hill Dam Bennetts Mills Dam Colonial Lake Trenton Reservoir Bass Lake Devoe Lake Davidsons Mill Pond
Bookmark this lake location.
Find other northcentral New Jersey area lakes and vacation ideas or return to the home page.
Other AreasClick the map to see lakes in other parts of the country.


Mr. Sigmon is currently in his 50th year of engineering involving work on the mechanical design and operational support of hydroelectric, nuclear, and fossil electric generating facilities; 42 of those years dedicated solely to hydro. He has participated in the upgrade of hydraulic turbines and pump-turbines as well as installation of new hydraulic turbines, both domestically and internationally, ranging in size from 400 kW to 510 MW at over 30 hydroelectric stations (over 80 units total). The turbine and pump-turbine upgrades have included replacement of runners including model testing in some cases, machine design improvements, complete refurbishment as well as modifications or new components including turbine discharge aeration. He has also participated in various station auxiliary mechanical system replacements and design upgrades.
Mr. Sigmon's pumped storage experience includes extensive engineering associated with the upgrade and rehabilitation of major pumped storage stations for Ameren Missouri, Duke Energy and Xcel. He has also participated in feasibility/conceptual design studies for a number of pumped storage stations. These activities range from participation in sizing of the units through layout of the powerhouse, to optimization of the water conveyance system including performance of stability and hydraulic transient analyses.


Tyee Lake set to power Wrangell through winter
November 28, 2019
PETERSBURG – The water level at Tyee Lake was at 1,380.6 feet as of Nov. 18, which will allow the hydro plant to produce power for over seven months should all inflows to the lake stop.
As part of the Southeast Alaska Power Agency, Tyee Lake dedicates its power to Petersburg and Wrangell, while Swan Lake produces power for Ketchikan. The 1,380.6 foot water level is about even with normal water levels for this time of the year, and is above the approximately 1,300 foot water level in November 2018, according to SEAPA.
The current lake level can provide enough hydropower to sustain both Wra...


Fingertip flow control with shut-off option.
Spike models suits 4 mm micro tube.
Barb model for direct attachment to micro and supply tubes.
4 mm threaded model for installation into Rigid Risers
1/2" threaded model for riser pipe installations.
Telescopic multifunction shower (63 to 91 cm)$
Rear push-button flow$


Self priming pump is a kind of equipment widely used in pump valves. There are many types of structures, such as molten salt pump, vacuum pump, submerged pump, metering pump, gear pump, corrosion-resistant pump, acid-resistant pump, fire pump, etc. . The working principle is that the pump is filled with water before the pump starts (or there is water in the pump casing).
The basic construction of the Self priming pump consists of the impeller, the pump body, the pump shaft, the bearing and the sealing ring. The impeller is the core part of the Self priming pump. It has high speed and large output. The pump body is also called the pump casing. It is the main body of the pump and plays a supporting role. The function of the pump shaft is connected by the coupling and the motor. The torque of the motor is transmitted to the impeller; the bearing is a component that supports the pump shaft on the pump shaft, and there are two kinds of rolling bearing and sliding bearing; the sealing ring is also called a leak reducing ring, and the inner leakage is reduced in order to increase the backflow resistance, and the impeller and the pump casing are delayed. The service life is provided with a sealing ring at the inner edge of the pump casing and the outer joint of the impeller.
1. Understand the pump structure and be familiar with the working principle.
2. When parts require assembly position and angle, mark them before disassembly so that they can be smoothly carried out in the future.
3. The order of disassembly is reasonable.
4. Appropriate tools should be used for dismantling, and uncivilized construction behavior such as shovel, knocking, and chaos is strictly prohibited.
Prepare before disassembly:
1. Master the operation of the pump and prepare the necessary drawings and materials;
2. Prepare maintenance tools, measuring tools, cranes, accessories and materials, and wear protective equipment;
3. Cut off the connection between the power supply and the equipment and the system, and hang the warning sign “Someone checks, prohibits closing” on the power supply control box of the maintenance pump, and discharge the medium in the pump to meet the equipment safety and maintenance conditions;
4. The maintenance personnel will close the front and rear gate valves of the Self priming pump and check whether the pressure gauge of the pump outlet is under pressure.
Disassembly method and sequence:
In order to improve efficiency, reduce inspection time, and ensure the quality of maintenance, attention must be paid to the disassembly sequence and method. Generally, the order of disassembly of the centrifugal pump is to first disassemble the auxiliary equipment of the pump, and then disassemble the parts of the pump body; first disassemble the outside and then disassemble the inside.


Barren River Area...
Antiques & Crafts
Show All Businesses
Barren River Lake was created by an earth and
rock fill dam built across the Barren River by the Louisville District
U.S. Army Corps of Engineers. A full range of development includes
facilities for land and water-based recreation, camping, fishing, boating,
hunting, picnicking, swimming, and scenic beauty. The Lake project was
constructed for the purpose of reducing flood damage on the Barren River.
Barren River Lake covers 10,000 acres at summer pool and 20,150 acres at
the maximum flood control pool. The Corps manages 20,108 acres for
wildlife, fisheries and recreation at Barren River Lake and is situated in
Allen and Barren counties in south- central Kentucky.


Seta River (Nango) Weir
The Seta River is the only river that flows out of Lake Biwa.
The Seta River weir was constructed in 1905 in response to a disastrous 1986 flood in an effort to control the water levels of Lake Biwa, as well as for managing flood control of the lower Uji and Yodo areas of the river.
The current Seta River weir is its second iteration, having been reconstructed in 1961. It has 10 electric gates and a total length of 173 meters.
In honor of the first iteration of the dam, former brick pillars still remain on both banks of the river’s upper stream in commemoration.
|Contact|| Ishiyama Station Tourist Information Center |


Neelum-Jhelum project to become functional in April 2018
ISLAMABAD: Chairman Water and Power Development Authority (WAPDA) Muzzamal Hussain on Saturday said Neelum-Jhelum Hydropower Project will become fully operational in April next year.
“First unit of the project will start production of electricity by February next year,” he said in a meeting with President Azad Jammu & Kashmir (AJK) Sardar Muhammad Masood Khan in Islamabad.
He said 80 percent work on the transmission line of Neelum-Jhelum Project has been completed.
This should be noted that Neelum–Jhelum Hydropower Plant project is designed to divert water from Neelum River to a 968MW powers station on the Jhelum River. The project was earlier expected to complete in December 2017.
On this occasion, AJK President said that India is violating Indus Water Treaty and threatening to divert the flow of the rivers.
He underlined the need of building big water reservoirs to meet the water scarcity in the country.


Yeywa HPP has an installed capacity of 790 MW, the highest in Myanmar, and an annual energy output of about 3,550 GWh. It was completed in 2011. It features a 137m high concrete gravity dam. Yeywa HPP has relieved power shortage in Myanmar and brought enormous returns for economic and social development to middle Myanmar and even the whole country.
Upper Paunglaung HPP was located near Naypyidaw, the capital of Myanmar and was completed in 2015. Its dam is a 98m roller compacted concrete dam. It has an installed capacity of 140 MW and an annual energy output of 454 GWh.
Itaipu HPP is the world's largest hydropower project in the 20th century built jointly by Brazil and Paraguay, aiming at power generation. Its first unit began generating power in 1983, with a total installed capacity of 14,000 MW currently and an annual energy output of 90,000 GWh, providing sufficient power to guarantee the economic development of Brazil and Paraguay.
The Three Gorges Dam of China is the largest hydropower station in the world. It was completed in 2009, and its installed capacity is 22500MW. Its design annual energy output is about 100,000 GWh and the power is transmitted to the most economically active areas in China such as Shanghai and Guangdong via 500kV EHV AC/DC transmission lines.
Shilongba Hydropower Station is the first hydropower station in China. It, located at the water outlet of the Dian Lake of the Tanglangchuan River, suburb of Kunming City, Yunnan Province, China, has steep slopes and rapids, and a natural head of more than 30m. It started to be constructed in 1910. Through decades of development, for the water-diversion project, the installed capacity is increased to 7040 kW from initial 480 kW, and the cumulative energy production exceeds 1 TWh through several times' expansion successively. It mainly supplies power to Kunming City, and makes an indelible contribution to Yunnan's economic development and social progress, with epoch-making significance.
The Grand Coulee Dam of America was built as a large multi-functional hydropower project to generate electric power, control floods, provide irrigation, regulate runoff, supply water to cities, serve as a scenic spot and improve the navigation conditions and generated power in 1941. It is a 168 m high concrete gravity dam and its installed capacity is 6494 MW
Nuozhadu Hydropower Station is located at the junction of Simao District of Pu'er City and Langcang County at the downstream of the Langcang River. The hydroproject is composed of rockfill dam, left-bank spillway, left-bank water diversion and power generation system, etc. Nuozhadu Reservoir has a normal pool level of 812m. The core-wall rockfill dam has the maximum dam height of 261.5m, ranking the third in the world in the similar dam type. The reservoir has a total storage capacity of 23.703 billion m3. The power station has a total investment of about RMB 61.1 billion (about USD 8.86 billion), the annual utilization hours of 4088, and an annual energy production of 23.912 TWh.
The Grande Dixence Dam is a 285 m high concrete gravity dam. It was commenced in 1953 and completed in 1962. Its installed capacity is 2000 MW.
The Kurobe Dam, the highest and longest dam in Japan, was commenced in 1956 and completed in 1963, integrating power generation, tourism and other functions. It is 186 m high and 492 m long. Its total installed capacity is 335 MW.
The Chirkey Dam of Russia was put into operation in 1974. It is a 232.5 m high concrete double-curvature arch dam. Its installed capacity is 1000 MW.
Nurek Dam is the second high dam in the world. It is located in the Bulisangjing Canyon of the Vakhsh River within Tajikistan. The hydroproject has such functions as power generation and irrigation. The controlled catchment area is 30700 km2. The average annual runoff is 20.4 billion m3. The dam is of earth core rockfill dam, with the maximum dam height of 300m, ranking the first in the world in the similar dam type. The reservoir is a seasonal regulating reservoir, with a total storage capacity of 10.5 billion m3. The semi-outdoor powerhouse of the right-bank hydropower station has a total installed capacity of 2.7 GW and an average annual energy production of 11.2 TWh. The hydropower station was completed in 1980.


Integrated Logistics Company Working on Kuwait International Terminal 2 project – Gallery
The contract for the construction of the new Terminal 2 Kuwait International Airport (KIA) was awarded to Limak Construction, based in Ankora, Turkey. Work on project started in May 2017 and is due to be completed and fully operational by 2023.
Integrated Logistics Company is supplying around 60% of the total project equipment requirement for heavy lift cranes, hydraulic modular trailers and other construction equipment with engineering supports, some of which is shown in these recent photographs of the project.
Source Integrated Logistics Company


72-hour long integrated testing of hydropower unit No. 1 manufactured by Power Machines has been successfully completed at Punta Negra HPP under construction in Argentina. The equipment proved its high performance and reliability.
Currently, the works to prepare for load testing of hydropower unit No. 2 are underway. Their completion is scheduled for July 2016.
Under the contract with the Argentinian UTE (consortium of the Techint and Panedile construction companies) signed in 2011, in total, Power Machines supplied Punta Negra HPP with two radial-axial hydropower turbines each having a capacity of 31.62 MW, including pre-turbine gate valves with a diameter of 2.6 m, adjusting equipment, and two generators complete with excitation systems.
The power plant having the capacity of 62.9 MW will be commissioned in the 3rd quarter of 2016.
Punta Negra HPP is one of the power plants to be included into the HPP cascade at the San Juan river. Its construction follows the construction of Los Caracoles HPP also equipped with the equipment manufactured by Power Machines.
This Argentinian HPP will become the 18th HPP in Latin America to be equipped with the Power Machines equipment.


Maldives Transport and Contracting Company (MTCC) has provided updates on three projects in progress.
According to MTCC, work on the design and build of Hdh. Hanimaadhoo Harbor Development Project is also well underway, with overall 55% project progress. Quay wall concrete works are ongoing in addition to sand-filled breakwater construction works.
MTCC was awarded the design and build of HDh. Hanimaadhoo harbor upgrade on 24th September 2019. The MVR 57.1 million project includes dredging and reclamation of an area covering 53,523 cubic meters, construction of 335, breakwater, 90m of groynes, 270m of quay wall, 50m of revetment, and 2583 square meters of pavement. The project also includes the installation of two-arm streetlights, a ramp, and mooring buoys.
MTCC said the work on the design and build of Shore Protection Structures at V. Fulidhoo is well underway, with overall 52% project progress. The company said that the final shipment of rock boulders required for breakwater construction was delivered to the project site on 13th February.
The project's scope includes dredging, backfilling, and beach filling of 12,127.50cbm of sand; construction of 210m groynes and 270m breakwater. The value of the project is MVR 16.94 million.
Providing updates on the progress of N. Manadhoo Harbor Channel Dredging and Breakwater Construction Project, MTCC said dredging operations and footing casting works for jetty construction are currently ongoing.
The project's scope includes dredging and excavation operations of 29,038cbm; construction of a 195m breakwater; a 188m revetment; a concrete bridge; a ramp, and installation of navigational aids. The value of the project is MVR 29.1 million.


Beirut - Lebanon
Committee for Development and Reconstruction (CDR)
1992 - 1996
Description for Beirut Aqueduct (Lebanon)
Damage assessment and proposal for rehabilitation works of the capital city water supply system.
- No. 5 intakes from spring
- No. 70 main wells
- No. 2 treatment plants
- No. 19 urban storage tanks
- No. 22 pumping stations
- Supply network ( L = 50 km )
- Distribution network ( L = 1'170 km )
- Water resource = 250'000 m³/d
- Network losses = 60%
- Supplied population = 1'700'000 inh.
- Per capita water consumption = 60 l/cap/d
- Water resource = 350'000 m³/d
- Network losses = 35%
- Supplied population = 1'800'000 inh.
- Per capita water consumption = 120 l/cap/d
- Inspection of the intakes and of the main supply structures
- Inspection of the pipelines in the areas of visible losses
- Hydraulic study of the network in order to divide the whole area in hydraulically homogeneous systems
- Identification, program and cost estimation of the rehabilitation works
- Supervision during rehabilitation works
NAO Transmission Line (Sierra Leone)
Restore of the MV and LV distribution system in...
Genzano Storage Plant (Italy)
Water storage for irrigation, capacity 58 Mm³.
Muchinga Hydropower (Zambia)
Hydroelectric plant (IP = 255 MW) on the Lunsemfwa river downstream of the...
Little Beles Storage Plant (Ethiopia)
Reservoir for water supply with a storage capacity equal to 3.5 Mm³.
Rumakali Hydropower (Tanzania)
Hydroelectric Power Plant, with IP = 525 MW, which the exploits of N° 5...
Dankel Multi-Purpose Project (Eritrea)
Multi-purpose project (underground hydropower plant, water supply, etc.) for...
Uribante Doradas Hydropower (Venezuela)
Hydroelectric project with IP = 300 MW.
High Voltage Transmission System (GABON-CONGO)
The assignment, financed by European Union...
Qaliwana Hydropower (Fiji)
This is the first Studio Pietrangeli’s project...


Fortum's work on the dam gates at Svarthålsforsen's hydroelectric power station on the river Indalsälven in the municipal district of Ragunda will be completed in 2015.
The power plant was built in 1950-1954 and the renovation work has ensured an improved level of safety for the dam. A total of SEK 22.5 million has been invested in the project.
Fortum has installed separate hydraulic control systems for each of the three dam gates as part of the safety improvement project at Svarthålsforsen. These replace one hydraulic system that previously controlled all the gates. This has improved safety because it ensures optimal operation of the gates, which is particularly important as Svarthålsforsen is a run-of-the-river hydroelectric power station, which means it has no reservoir for storage during high water levels. Refurbishment work carried out on the gates at the same time included sandblasting, painting, upgrading and repair of minor leaks.
"We have a high level of safety at our hydroelectric dams and we're further enhancing it with these improvement measures. By investing in the modernisation and refurbishment of hydroelectric power stations, we are ensuring that they can continue to produce renewable electricity for many years to come. Hydroelectricity has played a crucial part in making Sweden a role model in renewable energy production, and will continue to be crucial in the new renewable energy system that is now emerging," says Robert Bronegård, who is Fortum's manager for the project.
Fortum has also decided to carry out further modernisation work on the Svarthålsforsen power station. The project involves replacement of two of the three turbines in the power plant and, at the same time, installation of new generators. This project will extend the life of the power plant. It also means that Svarthålsforsen will continue to provide Fortum's customers with renewable electricity for a long time in the future.
The investment cost for the project has been about SEK 22.5 million.


Brandt Impoundment Flood Control Storage
East of East Grand Forks, Minnesota, lies some of the most fertile farmland in the Red River Valley. Periodic flooding has plagued the area for over a century. A system of ditches constructed in the early 1900s were undersized to serve the area farmlands that expanded over the last century. The Red River Valley area was selected to be part of a demonstration project for the Minnesota Clean Water Initiative.
HDR worked with the Red Lake Watershed District to design improvements to reduce downstream agricultural and urban flood damage by retaining nearly 4,000 acre-feet of excess runoff from the upstream drainage area in a new impoundment facility. The Brandt impoundment features 3.5 miles of earthen clay embankment, a grass-lined emergency spillway, two lines of concrete box culverts and a gated concrete outlet structure. The gates release water from the impoundment into an outlet channel where it flows to the Red River of the North. HDR provided design, construction monitoring and inspection services.


Ōta River is a 103 kilometer-(64 mile-) long river as its main stream from Mt. Kanmuri (冠山 Kanmuri-yama) (1,339m). The Ōta River is the major river that flows through Hiroshima Prefecture and empties into the Seto Inland Sea. The river descends through steep topography, with hydroelectric power plants situated along the river.
Ōta River has numerous of tributaries around the upper streams and join with Tone River and Misasa River in Asakita-ku, Hiroshima and branch into Kyōbashi River, Tenma River and Motoyasu River in the delta area of Hiroshima. Ōta River made the Hiroshima Delta. It is spanned by the Aioi Bridge, the aiming point for the Atomic bombing of Hiroshima.
Ōta River runs through Kitahiroshima, Akiota, Akitakata, Higashihiroshima and Hiroshima. The size of a catchment area is 1,710km²


Internal flooding in nuclear power plants is a possible internal disaster, which will lead to serious accidents in nuclear power plants, so it is necessary to evaluate for safety. CNIFA software is an advanced three-dimensional simulation software with independent intellectual property rights developed by China Nuclear Power Engineering Co., Ltd., which is specially used for internal flooding analysis of nuclear power plants. Compared with traditional flood analysis software, CNIFA has the advantages of good applicability and visualization. Interacted with E3D or PDMS software, the existing three-dimensional model of the nuclear power plant can be used directly as an input by CNIFA; the flooding scene inside the nuclear power plant can be dynamically simulated and the whole process of water flow spreading in the nuclear power plant in three dimensions can be clearly displayed by CNIFA. In this study, three -dimensional simulation software CNIFA is used to analyze the internal flooding safety of small reactor (ACP100), and some suggestions for design improvement are put forward. Firstly, the physical model of the plant (reduction ratio 1:10) is built to simulate the water flooding spread in the room of the nuclear power plant. The physical experimental results are compared with the simulation results of CNIFA. The results show that CNIFA has good applicability and accuracy in internal flooding safety assessment. Secondly, the safety assessment of the possible flooding event in ACP100 nuclear power plant is carried out through CNIFA, and the protective measures are taken for the important safety equipment in the plant according to the simulation results.


Pressure Control Valves
Pressure control valves perform pressure relieving, reducing, sequencing, and unloading control. Both subplate and in-line mounting types are available with various control types including remote, multiple pressure, and venting.
Benefits & Customer Values
- Choice of four adjustment control ranges
- Solenoid venting function
- Pressure override optimized
- Low off-load power wastage.
- Low installed cost and space
- Rated pressure up to - 350 bar/5000 psi
- Rated flow up to - 400 LPM/106 GPM


Wisconsin Public Service (WPS) announces it will start work on upgrades to its 5.4-MW Wausau small hydro facility in May, starting with a 14-foot drawdown of the reservoir later this month.
The upgrade project includes:
- Installation of three new gates
- Installation of a new gate heater for winter operation
- Improvements to the dam’s concrete piers
- Upgrades to the spillway electrical system
WPS completed a project assessment and engineering detail in 2018 to replace three original tainter gates on the dam to reduce leakage, improve plant efficiency and reduce operation and maintenance costs.
The Wausau drawdown is needed to allow for work on the foundation of the gates and is anticipated to last through December, during which time the fishing areas around the dam and the fishing platform below the powerhouse will be closed. The nearby canoe and kayak portage will be relocated, and additional recreation activities on the Wisconsin River will be limited to keep residents and work areas safe.
The upgrades are expected to be finished by the end of this year.
The run-of-river project has been operating since 1921, and the powerhouse contains three turbine-generator units.


US$1.2b Hydro Project in Southern Africa to start in 2022
The project, which will involve the construction of the Baynes dam and subsequently a hydroelectric power plant, has been under discussion by the governments of Namibia and Angola since 2007. A techno-economic study for the project was carried out in 2014. Construction is now planned to commence in 2022.
The Baynes hydroelectric power project is situated along the Cunene River in Namibia, at the foothills of the Baynes Mountain, approximately 750 kilometres, northwest of Windhoek, the capital city of Namibia. The location is at the international border of Namibia and Angola.
Financial close on the project is expected by the end of 2022, with construction planned to commence shortly thereafter. The project is expected to take six years to complete, and is estimated to cost US$1.2 billion. Completion of the project and commissioning of the plant are planned for the end of 2028 to the first quarter of 2029.
According to Namibia’s Executive Director of energy, Simeon Negumbo, the plant would generate 600 MW of power, which would be sold to Namibia and Angola in equal allocations of 300 MW each.
The Cunene Consortium (CC) performed the Techno-Economic Feasibility Study (TEFS) for the project, which also included an Environmental and Social Impact Assessment (ESIA).
According to information posted on the website of Nampower (Namibia's national power utility), the structure of the dam consists of a rock fill embankment with a concrete face. In total the rock fill will be 12 million cubic meters. The maximum dam wall height at Baynes will be 200 metres; the reservoir will be 43 kilometres long and have a maximum width of 4 kilometres. The area inundated by the reservoir would be 57 km2 and will hold 2,650 million m³ of water which is about half of the river's annual runoff of 5,000 million m³. Power will be generated by five Francis Vertical Axis turbines, two with a capacity of 71 MW each and three with a capacity of 156.75 MW each.
Photo: Cunene River, Epupa Falls - Namibia, Angola (Pavel Spindler/Wikimedia Commons)


Broadkill Beach, Delaware
Location: Delaware Bay at Broadkill Beach, Delaware (Sussex County)
Business Program: Flood and Coastal Storm Damage Reduction
Appropriation/Phase: Construction, General
Target Date of Completion: The project is to begin June 2015 and expected to be completed April 2016 (Inital construction)
The most striking example of beneficial use of dredge material
As part of the initial construction of the Delaware River Main Channel Deepening Project
was an opportunity to complete initial construction of the Broadkill project as a
use of dredge material.
The dredged material from Delaware River Main Channel Deepening project was taken
to five federal upland confined disposal facilities (CDFs) in New Jersey and
The good quality sand will be taken from the Delaware River Channel and placed as beachfill at Broadkill Beach, Delaware.
In the News...
Sand Pumping Starts at Broadkill BeachDelawareOnline.com
Broadkill beach fill begins: Pushing back time and tideDelawareOnline.com
US Army Corps of Engineers
Philadelphia Marine District
Delaware Bay Coastline, Broadkill Beach, DE
Delaware River Main Channel Deepening
US Army Corps of Engineers Philadelphia District
More PRPA Environmental Stewardship projects include,
... New www.philaport.com coming Summer 2015 ....


- Flood Warning issued April 30 at 9:45PM CDT until May 03 at 1:00PM CDT by NWS
- Effective: 9:45 p.m. on Saturday, April 30, 2016
- Expires: 1 p.m. on Tuesday, May 3, 2016
...The flood warning continues for the following rivers in
Missouri River near Chamois
Missouri River at Gasconade
Missouri River at Hermann
Missouri River at St. Charles
...The flood warning continues for the following rivers in Missouri..
Missouri River at Washington
The Flood Warning continues for
the Missouri River at Washington
* until Tuesday afternoon.
* At 8:45 PM Saturday the stage was 20.6 feet.
* Flood stage is 20.0 feet.
* Minor flooding is forecast.
* The river is forecast to crest near 21.0 feet by tomorrow morning,
then fall below flood stage early Monday morning.
* Impact: At 21.0 feet...Wastewater plant turns pumps on.
* Impact: At 17.5 feet...Lower River front parking lot is closed
* Impact: At 2.0 feet...This level represents the end of the city
boat ramp. Below this level, the boat ramp drops straight down,
making it dangerous for boats to safely launch into or be taken
from the river.
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 05/01 05/02 05/03 05/04 05/05
Washington 20.0 20.64 21.0 19.5 17.8 17.5 17.1
- See more at NOAA


oa Civil Engineering = Siviele Ingenieurswese - Injaka Dam set for completion in March 2000
Group Five Roads Africa is making steady progress on the Injaka Dam in the Bushbuck Ridge area of Mpumalanga. The dam forms part of a R234 million water project for the Sabie River catchment area and is the first phase of a scheme to provide potable water to over two million people in the area. In addition, the dam will be used to supplement the low water flows of the Sabie and Sand Rivers in an effort to protect the natural riverine environment in the Sabie Sand Game Reserve and Kruger National Park .
Article metrics loading...


15 Water Level Indicator Using 555 Timer. Test point 4 t4 : Use custom templates to tell the right story for your business.
Water level indicator using simple transistors. Your browser is incompatible with multisim live. A water level indicator is an electronic circuit which indicates the various levels of water inside a tank.
Make social videos in an instant:
15 Water Level Indicator Using 555 Timer. Before starting to design the circuit, gather the following components according to the given we can design the water level indicator circuit using uln2003 ic as the main component. This circuit is about automatic water level controller using ic555 timer. Use 555 ic as water level detector. A few useful yet simple automatic water level controller circuits are explained in this post, using another simple water level controller circuit which is 5th in our list for controlling tank overflow can be built thanks for the ideas.


Banja Dam fills
On Friday April 15th 2016, Albania’s 80 metre tall Banja Dam, part of the Devoll Hydropower Project started filling the 16km reservoir.
The National Committee of Large Dam in Albania gave the go ahead to close the bottom outlet and start the slow impounding phase, filling the reservoir with 178 million square metres of water.
When the water reaches its operational level the vertical Francis power generating units will be commissioned during trials in August before becoming fully operational producing 66 megawatts of electricity. Annual energy production is estimated to be 255 gigawatts.
The project has seen major works including the Dam itself, the spillway, intakes, waterways, emergency outlets, bottom outlets, new roads, bridges and the construction of fifteen new houses for families relocated from the area.


|Payment & Shipping Terms||Supply Capacity|
|Unit Price:||5.0 USD||Production Capacity:||100000 sets/month|
|Trade Term:||FOB||Packing:||according to your...|
|Payment Terms:||L/C, T/T, WU||Delivery Date:||30 days|
|Min. Order:||1000 Set/Sets|
|Means of Transport:||Ocean|
Fenghua Weijin Mechanical Seals Factory mainly offer pump seals, auto cooling pump seals, industrial pump seals, graphite seal faces and ceramic seal faces, etc.
What are mechanical seals?
A mechanical seal is a sealing device which forms a running seal between rotating and stationary parts. They were developed to overcome the disadvantages of compression packing. Leakage can be reduced to a level meeting environmental standards of government regulating agencies and maintenance costs can be lower. Advantages of mechanical seals over conventional packing are as follows:
1. Zero or limited leakage of product (meet emission regulations.)
2. Reduced friction and power loss.
3. Elimination of shaft or sleeve wear.
4. Reduced maintenance costs.
5. Ability to seal higher pressures and more corrosive environments.
6. The wide variety of designs allows use of mechanical seals in almost all pump applications.
Features of pump mechanical seal submersible pump seal elastomer bellow shaft seal
Model: type 108
Stationary Ring: ceramic
Rotary Ring: carbon
Secondary Seal: NBR
Spring&Metal parts: steel
Operating Limits of pump mechanical seal submersible pump seal elastomer bellow shaft seal
Drawing of pump mechanical seal submersible pump seal elastomer bellow shaft seal
Category: pump mechanical seal


Description | Data Sheet | Related Products
Submersible Pressure Transducer Performance:
- Excellent stability, repeatability and accuracy
- All stainless steel housing
- 4-20mA two-wire output
- Integral transient voltage protection
- High strength moulded polyurethane cable with vent tube
The PR3442 ultra slim submersible transmitter has been designed for the accurate measurement of the depth and level of liquids in borehole applications.
Standard output signal is 4-20mA two wire and supply range 12-30Vdc, with integral transient voltage protection.
Electrical connection is via a high strength moulded polyurethane cable with integral tube for excellent trouble-free venting to the surface atmosphere.
Borehole level and reservoir level monitoring, water mains pressure measurement in inspection chambers, power level and outlet pressure measurement on submersible pumps.


- Flood Warning issued September 12 at 9:22PM CDT until September 14 at 1:34PM CDT by NWS
- Effective: 9:22 p.m. on Friday, Sept. 12, 2014
- Expires: 1:34 p.m. on Sunday, Sept. 14, 2014
...The Flood Warning continues for the following rivers in Kansas...
Missouri River at St Joseph affecting Doniphan...Andrew and Buchanan
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River At Miami affecting Carroll...Chariton and Saline
Missouri River at Glasgow affecting Chariton...Howard and Saline
Missouri River at Boonville affecting Cooper and Howard Counties.
...The Flood Warning continues for the following rivers in
Grand River near Pattonsburg affecting Daviess and Gentry Counties.
Grand River near Gallatin affecting Daviess and Livingston
Grand River near Chillicothe affecting Linn and Livingston
Grand River near Sumner affecting Livingston...Carroll...Chariton
and Linn Counties.
Grand River near Brunswick affecting Carroll and Chariton Counties.
Platte River near Agency affecting Buchanan County.
Platte River At Sharps Station affecting Platte County.
Platte River near Platte City affecting Platte County.
The Flood Warning continues for
The Grand River near Pattonsburg.
* until Sunday afternoon.
* At 8:30 PM Friday the stage was 30.7 feet.
* Flood stage is 25.0 feet.
* Moderate flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by
early Saturday afternoon.
* At 30.0 feet...Nearly all agricultural land and secondary roads in
the Grand River floodplain flood.
* At 25.0 feet...Low-lying farmland begins to flood.
Location FS Stage Day/Time Forecast
Pattonsburg 25 30.7 Fri 08 PM 30.2 early Saturday morning
- See more at NOAA


After crossing the blue-alert level on Friday, water in the Idukki reservoir is reaching near to the orange-alert level.
As per the data available at 4 p.m. on Sunday, the water level was only less than a foot from the orange-alert level.
The data released by the Dam Monitoring and Research Station said the water level reached 2,395.96 ft at 4 p.m. where as the orange alert level is 2,396.86 ft and the red alert level is 2,397.86 ft. The full reserve level is 2,403.50 ft.
An official of the Kerala State Electricity Board (KSEB) said that rainfall had come down on Sunday compared to the previous day. However, there was good inflow through the Periyar. If the inflow continued at the same level, water might reach the orange alert level by Monday. On Sunday, the storage was 91.83%. The storage on the same day last year was 89.18%.
Power generation at the Moolamattom plant remained at a moderate level of 8.42 mu.
The water level in the Mullaperiyar dam on the upstream of Idukki dam was 131.36 ft on Sunday. While there was an inflow of 7,814 csc (cubic feet per second), Tamil Nadu was drawing water at 1,305 csc. The maximum water level at the Mullaperiyar dam is 142 ft.
The shutters of smaller dams, including Malankara, which receives the tail water from the Moolamattom power plant remained open on Sunday. The shutters of Kallarkutty and Lower Periyar also remained open.


Tashkent, Uzbekistan, June 7
By Demir Azizov– Trend:
Uzbekistan will allocate $2.65 billion for the implementation of 32 investment projects on the development of hydropower engineering in 2017-2025, according to the decree of Uzbek President Shavkat Mirziyoyev.
In accordance with the decree published in the national database of the Uzbek legislation, in particular, it is planned to implement 18 projects on construction of new hydropower plants and 14 projects on modernization of the existing hydropower plants.
Construction of two hydropower plants (the Pskem hydropower plant worth $810 million with a design capacity of 404 megawatts and the Mullalak hydropower plant worth $480 million with a design capacity of 240 megawatts) on the Pskem River in the Bostanlyk district of the Tashkent region is among the biggest projects.
It is also planned to build the Nijnechatkalskaya hydropower plant worth $180 million with a design capacity of 100 megawatts on the Chatkal River in the Bostanlyk district.
It is planned to finance the program for hydropower engineering development also through the loans worth over $1 billion from foreign financial organizations.


Lake Kariba – Zambia/Zimbabwe
Republic of Zambia
2017 - in progress
Description for Kariba Dam (Zambia-Zimbabwe)
This project foresees the rehabilitation for the safety improvement of the existing Kariba dam, a double curvature concrete arch dam 128 m – high on the Zambezi river, built between 1957 and 1959 and on the border between Zambia and Zimbabwe.
This dam has a world record, creating the world’s largest reservoir (with a volume of 181 km3). This large reservoir is for hydropower use. Two underground power stations, the one on the North side supplies 960 MW to Zambia, while the one on the South side supplies 750 MW to Zimbabwe, for a total IP of around 1700 MW.
The main works for the rehabilitation include the reshaping of the plunge pool excavated by floods, comprising all the relevant works such as temporary cofferdam, roads, dam monitoring, spillway gates rehabilitation, etc.
Studio Pietrangeli (SP) is the Advisor for the European Union.
- Double curvature arch dam ( H = 128 m, L = 617 m )
- Reservoir Capacity ( V = 181 km3 )
- Spillway in the dam body ( No. 6 gated bays, Qflood = 9,000 m3/s )
- No. 2 Underground Powerhouses ( North: IP = 960 MW, South: IP = 750 MW )
- Plunge pool in the river bed excavated by the floods ( D = 80 m )
- Temporary cofferdam with stop-logs ( H = 15 m )
Casteddu Irrigation Project (Italy)
Three-dam projects for irrigation purposes.
Beles Multi-purpose Project (Ethiopia)
The Beles multi-purpose project is a hydropower...
Porto Romano Multi-Purpose Project (Italy)
Yacht Harbour is on the right side of the Tevere River floodplain, about 1 km...
Kakono Hydropower (Tanzania)
Kakono will be a Hydropower Plant located on the...
Rumakali Hydropower (Tanzania)
Hydroelectric Power Plant, with IP = 525 MW, which the exploits of N° 5...
Chespi Hydropower (Ecuador)
Chespi is the first hydroelectric project of the Guayllabamba cascade with an...
Hermitage Storage Plant (Jamaica)
The scope of the assignment is the rehabilitation of the existing Hermitage...
Kariba Dam (Zambia-Zimbabwe)
This project foresees the rehabilitation for the...
Lusaka Aqueduct (Zambia)
Lusaka project including domestic water supply pipeline for the city of...


wall drain the drain cover can be tiled and thus blends almost invisibly into the wall design drain performance l s wall mounted toilet drain.
wall drain an error occurred condensate drain wall box.
wall drain wall drain gold washer wall drain box lowes.
wall drain wall drain base unit standard retaining wall drainage material.
wall drain from unique innovation superior functionality business wire proline wall drain.
wall drain wall drain wall drain standing grate condensate drain wall box.
wall drain classic wall drainage membrane.
wall drain flooded under house foundation drain retaining wall drainage wall drainage.
wall drain wall mounted wall drain box hanging toilet smart wall concealed wall hanging toilet foundation wall drainage material.
wall drain round pop up basin waste drain basin mixer p trap waste pipe into the wall drainage tube siphon drain bottle traps retaining wall drain outlet.
wall drain finally the cover is mounted you can hear it click into place by pressing lightly on the upper edge wall drain pro for sale.
wall drain linear shower drain wall drainage channel.
wall drain the new wall drain triple wall drain pipe.
wall drain wall drainage large traffic stainless steel bathroom accessories shower floor drain big flow rate wall mounted toilet drain.
wall drain wall drainage drainpipe cover retaining wall drain pipe retaining wall drainage retaining wall with proper drainage wall mounted toilet drain height.
wall drain download wall drain pro flyer allan block wall drain pro.
wall drain basic j drain 6 composite drainage system overflow roof drain wall outlet.
wall drain line style stainless steel linear shower wall drain horizontal drain shower floor waste linear shower channel in drains from home improvement cavity wall drainage mat.
wall drain wall drainage large traffic stainless steel bathroom accessories shower floor drain big flow rate refuse nasty smell recessed wall box drain.
wall drain washing machine wall drain box.
wall drain element for shower with wall drain wall drainage.
wall drain stainless steel wall mounted drip tray with drain faucet holes x 6 3 x wall drain outlet.
wall drain square brass stainless steel pop up basin waste drain basin mixer p trap waste pipe into the wall drainage tube siphon drain in drains from home kerdi wall line drain shower tray.


Model Tests Successfully Completed for Swiss Pumped Storage Power Plant
Model acceptance tests of the Pelton turbine, which will supply electricity for the 16.7-Hz-grid of the Swiss Federal Railways and operation of its trains. (Image source: Voith GmbH & Co. KG)
A 5- and 6-nozzle Pelton turbine and a storage pump were tested. The Voith experts determined the efficiency, maximal output, throughput speed, hydraulic forces and the dimensions of the machines on the basis of the fully homogeneous models. The specialists also controlled the cavitation behavior at different operating points. As a result, the subsequent behavior of the machines were analyzed and the guaranteed parameters verified. The contractually assured guarantees were confirmed by the measurements and in some cases exceeded.
Sophisticated model test successfully conducted
Even before the model acceptance tests were carried out, the electromechanical parts of the new machines were examined with detailed simulation models and optimized with regard to all requirements. The Voith team initially started testing the two-stage storage pump. Afterwards the model acceptance tests of the two Pelton turbines were carried out. Despite the high efficiency guarantees, the parallel development of two completely different Pelton turbines and numerous conversions on the test stand, the Voith team was able to achieve the guaranteed parameters and thus successfully complete the model acceptance tests.
"Currently, the engineering of all components of the hydraulic and electric machines is in progress. The components from earlier construction phases, for example, the turbine housing and the distribution piping, are already in production. If everything goes according to schedule, these components can be installed on site in May 2021," explains Matten.
About the Ritom pumped storage power plant
The four Pelton turbines with a total rated output of 44 MW, used in the existing Ritom storage power plant, will be replaced by significantly more powerful machine groups in the new power plant. Voith will supply two Pelton turbines, each up to 60 MW capacity and with a 60 MW storage pump.
The first machine unit will supply power for the 16.7-Hz-Grid of the Swiss Federal Railways and for operating its trains. The second machine unit will feed electricity into the public 50-Hz-grid. In conjunction with the turbine, the storage pump can provide control power for rapid grid regulation and stabilization with maximum flexibility. The new hydropower plant will thus provide a control band from 60 MW of feed-in to 60 MW of power consumption for the Swiss 50-Hz-grid. In addition, the storage pump can be accelerated and synchronized with the grid using the 50-Hz-Pelton group by means of back-to-back startup. Here, the power of the turbine is used to start the pump quickly and reliably.
Source: Voith GmbH & Co. KGaA


Thompson Pond, Massachusetts
Thompson Pond is on the Thompson Pond River in Worcester County, Massachusetts and is used for recreation and drinking water purposes. Construction was completed in 1957. It is owned by Comm Of Mass - D E M.
Thompson Pond Dam is of earthen construction, rock fill, a gravity dam. Its length is 290 feet. Its capacity is 1559 acre feet. Normal storage is 791 acre feet. It drains an area of 8.9 square miles.
Lakes, Dams, and Recreational Facilities Near Thompson PondBuck Hill Conservation Dam Eames Pond Sugden Reservoir Moose Hill Pond Kettle Brook Reservoir #4 Dam Kittridge Dam Lake Whittemore Shaw Pond Horse Pond Asnebumskit Pond Kettle Brook Reservoir #3 Dam Demond Pond Kettle Brook Reservoir #2 Dam Kenwood Drive Pond Muzzy Meadow Dam Kettle Brook Reservoir #1 Dam Kendall Reservoir Lower Basin Dam Pine Hill Reservoir Horse Pond Holden Reservoir Lake Lashaway Kettle Brook Reservoir #3 Dam Doane Pond Lake Lashaway Howe Reservoir Lynde Brook Reservoir Holden Reservoir Lynde Reservoir Dike Muschopauge Pond Howe Mill Pond Kendall Reservoir Eagle Lake Greenville Pond Buxton Mill Pond Parsons Reservoir Patch Reservoir Cranberry Meadow Pond Old Cider Mill Pond Old Grist Mill Pond Maple Spring Pond
Bookmark this lake location.
Find other northeast Connecticut area lakes and vacation ideas or return to the home page.
Other AreasClick the map to see lakes in other parts of the country.


Home » Shop » 2015 – Ailments of the first concrete dam in Sri Lanka and the remedial works
Susantha Mediwaka, Nihal Vitharana, Badra Kamaladasa
Nalanda dam is the oldest concrete gravity dam on the Island built in the 1950s by the Ceylon Department of Irrigation. The dam was built in 9 monoliths having a dam crest length of approximately 125m and a maximum height of about 36m. The spillway consists of: (1) a low-level uncontrolled ogee-crested horse-shoe section with a crest length of 46m, and (b) a high-level broad crested weir with a crest length of 43m.
It was designed and constructed according to the then standard practices adopted throughout the world. Over the years, Nalanda dam has been showing signs of deterioration which is suspected to be Alkali-Aggregate Reaction (AAR). The dam was also shown to be deficient with respect to the stability levels required by modern standards. Under a program of dam safety improvement of the dams throughout Sri Lanka, it was decided to stabilise Nalanda dam as the first step in addressing a series of issues affecting the dam.
This paper presents the construction history, current issues, design assumptions and salient construction features in the upgrading of the dam to modern dam safety requirements.
Keywords: Concrete dams, dams Sri Lanka, concrete buttressing, upgrade, horse-shoe spillway
ANCOLD is an incorporated voluntary association of organisations and individual professionals with an interest in dams in Australia.


China’s Baihetan Dam, the second largest hydropower facility in the world, has started generating electricity for the first time. The dam is on the Jinsha River in southwest China; it has started operating its first two 1 GW generating units.
The dam is scheduled to be operating on 16 units with the same capacity by July 2022, giving a total power generation second only to the Three Gorges Dam. Both dams were built by the state-owned Three Gorges Group .
Baihetan Dam took four years to build and has a height of 289 metres.
President Xi Jinping said in a letter endorsing the project: “As a major project in China’s west-east power transmission programme, Baihetan is the largest and most technically difficult hydropower project currently under construction in the world.”
China will use UHV transmission technology to move power from the collection of dams in the southwest to Shanghai and other eastern cites.


Package 1 - Design, Construction and Commissioning of Um Elulu-Jerash and HofaAjloun System Facilities The work includes the design and construction of new facilities and upgrading of existing facilities in Jerash and Ajloun Water Transmission systems as follows:
1. New Pump House and reservoir at Um Elulu including the rehabilitation of existing Um Elulu Pump Station.
2. New Pump House and reservoir at Buwayda Pump Station
3. New pump house at Hofa Pump Station
4. New pump house at Samad Pump Stations with new reservoir Including rehabilitation of existing structures.
5. New Ishtafina Reservoir with a capacity of 4000 m3 and rehabilitation of existing structures.
6. Flow control, Surge protection, Electrical , site works and other miscellaneous items.


Sunwater is proactively reducing Paradise Dam’s capacity to facilitate essential work to lower the spillway.
As the water level reduces, please be aware of water storage hazards.
For more information, please view our Safety Notice.
Sunwater Media Team
Phone: +61 7 3120 0047


High Pressure Hot Water Wash Station is designed for DIY and light industrial use. It is used in cleaning patios, paths, vehicles, boats and caravans. It works with 90 degrees centigrade. Its flow rate is 570 l/h. It has automatic stop system. It also has power cable with plug.
High pressure hydraulic ram is a device in which the cross-sectional area of the piston rod is more than one-half the cross-sectional area of the moving component. It is the large output piston of a hydraulic cylinder, performing as a water-powered pump. It is primarily used to push rather than pull, and is most commonly used in high pressure applications.


A new diffuser design is developed for a low specific speed, multistage pump. In this design the diffuser and the de-swirl vanes are integrated into single vanes. This creates diffuser channels that extend from behind the impeller exit through the cross-over, up to the eye of the next stage impeller. Experiments show the occurrence of a saddle type instability in the head curve. At a critical flow rate of close to 50% of the flow rate at Best Efficiency Point (BEP), the head drops by 7% of the head at BEP. In this study Computational Fluid Dynamics (CFD) are used in an effort to understand the underlying flow phenomena.
The head curve that is obtained with the transient CFD simulations contains a saddle type instability at a flow rate that is approximately the same as in the experiments, but with a lower magnitude. At flow rates higher than the critical flow rate, the predicted head and power are in very good agreement with the experimental data. At flow rates lower than the critical flow rate, the head and power are slightly over-predicted. An analysis of the pressure distribution in the pump reveals that the head loss at different flow rates in the diffuser shows a discontinuity at the critical flow rate. Since both the impeller head and the head loss in the vaneless gap increase continuously for decreasing flow rate, this is an indication that the cause of the head instability lies in the diffuser. Moreover, a strong increase in the variability of head and power at flow rates below the critical flow suggests that the phenomenon is unsteady.
Flow patterns in the impeller and in the diffuser, as calculated by CFD, show a high degree of periodicity and are very similar for flow rates down to the critical flow rate. However, for lower flow rates the flow pattern changes completely. A single rotating stall cell is observed that causes two or three neighboring diffuser channels to stall, leading to a significantly lower flow rate or even a reversed flow. This stall pattern rotates in the direction of impeller rotation at a very low frequency of approximately 3.3% of the impeller rotation frequency.


BM2 motor with braker
ZBM2 is BM2 orbit hydraulic motor with multi-disc braker. There are shuttle valve and inner hydraulic control system. It has small volume, short radial dimension,light weight and easy to install. It’s widely applied in construction machinery, shipping machinery, cranes, mining, metallurgy and other construction machinery industry equipment.


- The impounded water in the reservoir has to be regulat through outlet works to use it usefully.
- Outlet works are required for following purposes
(i) Feeding water for power generation.
(ii) Discharging heavily laden silty water D/S.
(iii) Supplying water to irrigation channels.
(iv) Supplying water for water supply purpose.
(v) To evacuate the water from the reservoir in anticipation of flood inflow.
Outlet works consist of three component parts.
1. Water way.
2. Gates to control the flow of water.
3. Intake structures.
- A pipe or tunnel passing though the dam is the water way.
- It is sometimes also know sluice way.
- In concrete gravity dams the sluice ways may be made in the body of the dam whereas in case of earth dam they are set up outside the limits of the embankment.
- If sluice way has to be provided in the body of the earth dam, the sluice way should have projecting collars at regular interval.
- Collars prolong the seepage path and prevent the failure of the dam.
- The inlet of the sluiceway should further be placed at the minimum reservoir level.
Gates. Rectangular vertical lift gates are mostly used for exercising control on the entry of water.
Sometimes sideway sliding gates may also be use.
Intake Structures. It is a structure place at the entrance of the sluiceway.
- The main purpose of the intake structure is to allow only that water to pass through the sluiceway which is clear of grit, floating debris, etc.
- It has several openings at various heights.
- All the openings are cover with the screen.
- A trash rack is also one of the devices which prevents the entrance of objectionable material in the sluiceway.
- It also prevents any heavy body from hiring the outlet.


Seymourville Drainage Improvements
Forte and Tablada, Inc provided topographic survey, preliminary and final drawings and specifications, construction inspection, a hydrologic and hydraulic study, and permitting for drainage improvements. The design replaced the CMP culverts at Plaza Drive to improve the capacity of the existing system. The corrugated metal pipe replaced with box culverts and the canal between Plaza Drive and Tenant Road was lined with concrete to increase drainage capacity. This project was funded by the Hazard Mitigation Grant Program.
Similar Projects See All
Elevated Water Tank for Village of Rosedale Forte and Tablada, Inc. was responsible for the engineering design, topographic survey, and construction observation for the construction of a 250,000-gallon elevated water storage...
St. Charles Parish East Regional Library The scope of this project included designs for subsurface drainage, the layout for a concrete parking lot around the building and a new boulevard...


The Lancang River flows through the west of Yunnan Province and then runs southwards.Its downstream reaches out of China are called the Mekong River. It is 1240km long with a total water drop of 1780m within the boundaries of Yunnan Province of China. Its mean annual discharge is 2180m3/s, hydroenergy potential is 25500MW and exploitable hydropower capacity is 23480MW. The cascade development of hydropower in the Lancang river basin is noted as a rare ricb hydropower mine for its prominent natural advantages in abundant and well-distributed runoff, large drops and less flooding losses of the reservoirs.
The Dachaoshan Hydropower Station located on the Lancang River at the border between Yun Xian County of Lincang Prefecture and Jindong Yi Autonomous County of Simao Prefecture in Yunnan Province is the downstream cascade hydropower station next to the Manwan Hydropower Station according to the planning of cascade hydropower developments along the medium and lower reaches of the Lancang River. Its dam site is 131km away from the completed Manwan Hydropower Station, and 600km away from Kunming City. the capital of Yunnan Province.
The Dachaoshan Hydropower Project is constructed solely for the power generation purpose. The water reservoir has its normal storage water level at EL. 899m and its total storage capacity of 940 million m3. It will Hood 12385mu(1mu=0.0667 hectares) of farm land, and affect 6100 people, of which, however, only 84 people are living below the proposed flooding line. The total installed capacity and firm capacity of the Project are 1350MW and 363.1MW respectively. Tke mean annual energy output is 5931 GWh and will reach 7021 GWh after the completion of its upsffeam reservoir for the Xiaowan Hydropower Station.¡¡
The Dachaoshan Hydropower Project consists of a roller compacted concrete (RCC) gravity dam, a right bank underground powerhouse and long tailrace tunnels.
The RCC gravity dam has a maximum height of 111m with its crest level at E1906m, and a total crest length of 460.4m, including 254m of dam section in the river bed. The designed concrete volume of the dam is 1.1267 million m3, out of which the RCC concrete volume is 756600 m3. The dam has five overflow crest outlets, three flood and sand discharge bottom outlets, and a sand-flushing bottom outlet.
The underground powerhouse system is composed of a main powerhouse, an auxiliary plant, a main transformer room, a bus bar gallery and other appurtenant chambers. The power tunnel system consists of pressure power tunnels, draft-tube tunnels, tailrace surge chambers and long tailrace tunnels. One penstock to one unit system is adopted, with six pressure power tunnels in total. The tail water goes into two long tailrace tunnels from the draft-tube tunnels through long-gallery-type tailrace surge chambers, and then empties into the Lancang River downstream. Three draft-tube tunnels share one tailrace surge chamber and one tailrace tunnel. forming a layout of two groups of three generating units, one chamber and one tailrace tunnel.
The river closure for the Dachaoshan Hydropower Project was carried out at one time. The river diversion is executed by means of the diversion tunnel in dry seasons. and the diversion tunnel jointly with overtopping of the cofferdams and the foundation pit in flood seasons. A diversion tunnel is arranged at the left bank. A RCC overtopping arch cofferdam is placed upstream, and a roller compacted concrete-faced earth-rockfill overtopping cofferdam is placed downstream.
The Dachaoshan Hydropower Project started its initial construction preparations in 1993, was approved by the State as a state project to be ready for construction in 1994, and was approved to start construction on August 4, 1997. The river closore was completed successfully on November 101997. The first generating unit is scheduled to be put into operation in 2001, then three generating units shall be put into operation in 2002, and the last two generating units in 2003.
The Project is designed jointly by Beijing Hydroelectric Investigation Design & Research Institute and Kunming Hydroelectric Investigation Design & Research Institute.
Three-dimensional view of underground chambers
The Owner of the Project. Yunnan Dachaoshan Hydropower Co., Ltd. is a standardized large corporation set up based on Corporation Law of the People's Republic of China. The Corporation was established jointly by State Development and Investment Corporation, Yunnan Hongta Industrial Co., Ltd., Yunnan Development and Investment Corporation, and Yunnan Electric Power Group Co.,Ltd, in the share proponion of 5:3:1:1 in November, 1994. The registered capital of the Corporation is RMBY 1.77 billion. As an independent power plant, the Corporation is responsible for execution of integrated management of construction and operation of the Dachaoshan Hydropower Station, and has already signed an agreement for purchasing and selling electricity with Yunnan Electric Power Group Co.,Ltd, The Corporation exercises the general manager responsibility system under the leadership of the Board of Directors. In the construction of the Project, the project legal person responsibility system, competitive bidding system and engineering supervision system are implemented in an all-round way.


Beles Valley - Ethiopia
Italian Ministry of Foreign Affairs, General Directorate for Co-operation to Development - D.G.C.S.
1986 - 1992
Description for Tana Beles (Ethiopia)
The ambitious Tana Beles project was located in the Metekel district of Ethiopia, covered an area of approximately 1,600 km2 to supply a population of approx. 80,000 inhabitants.
The works included:
Gravity dam (H=35m)
Sewage treatment plant (4.500m3/gg
Weir for irrigation (22m)
Road network (225 Km)
Villages (# 50)
Infrastructures ( Hospital, Livestock, Pipe factoe, Airport, Project center)
Agricolture (23.000 Ha)
Refurbishment of the Uvini hydropower plant.
Giurgiu Ramiresti (Romania)
Irrigation scheme with water from the Danube and irrigated area of 155'000...
Lower Diamphwe (Malawi)
This project includes the Lower Diamphwe Multipurpose Dam and associated...
Rockfill dam with bituminous facing (BFRd) with a reservoir for irrigation,...
Montedoglio dam has suffered some damages at the spillway and dam body due to...
Alto Temo (Italy)
Water storage plant for irrigation purposes with a capacity of 90 Mm³
Arda Cascade (Bulgaria)
Hydropower cascade including the existing plants of Karjali (IP = 106 MW),...
Impianto Idroelettrico (PI = 255 MW) sul fiume Lunsemfwa a valle della diga...
Water storage plant for irrigation purposes with a reservoir capacity of 42...


Hydraulic pump with large oil container 100 MPa
Large oil container 100 MPa - (14 500 psi)The TMJL 100 pump is suitable for use with hydraulic nuts (smaller than or equal to HMV 92E) and for mounting and dismounting bearings or components where a maximum pressure of 100 MPa (14 500 psi) is required. The pump is supplied with 3 000 mm (118 in) pressure hose, quick connect coupling and mating nipple, and pressure gauge. The pump is filled with SKF mounting fluid LHMF 300 and is supplied with an extra litre of fluid.
- Oil container capacity 800 cm³ (48 in.³)
- Suitable for hydraulic nuts smaller than or equal to HMV 92E
- Suitable with SKF hydraulic assisted pullers TMHP series
- Extra litre of mounting fluid
- Packed in a sturdy protective case
- SKF hydraulic nuts smaller than or equal to HMV 92E
- All other oil injection applications where the maximum pressure is 100 MPa (14 500 psi)
- SKF hydraulic assisted pullers TMHP series
TMJL 100 including THGD 100 digital pressure gauge for use with the SKF Drive-up Method.
Technical data Designation TMJL 100 Maximum pressure 100 MPa (14 500 psi) Volume/stroke 1,0 cm3 (0.06 in.3) Oil container capacity 800 cm3 (48 in.3) Length of pressure hose 3 000 mm (118 in.) Connection nipple G1/4 quick connection Weight 13 kg (29 lb) Designation TMJL 100DU TMJL 100 including THGD 100


Regional water authority Águas do Algarve (AdA) has announced that the construction of a new water reservoir in São Sebastião (Lagos) is nearly complete at a time when major efforts are underway to deal with the region’s chronic water shortage issues.
The €2.6 million investment aims to increase the Western Algarve’s capacity to store water for public supply, AdA says.
“The new Barlavento reservoir features a series of studied solutions to solve the limitations and fragilities of the Barlavento subsystem,” explains the water authority.
It is also expected to boost the supply of the Fontainhas ETA (water treatment plan) and avoid the “interruption of supply during consumption ‘rush hours’ and during periods of programmed maintenance of infrastructure”.
The reservoir is being built near Lagos’ existing reservoir and will feature two tanks, each with a capacity to store 5,000 cubic metres of water. This will provide a big boost to the existing reservoir which can currently only store around 1,100 cubic metres of water.
Says AdA, the new reservoir will be linked to the existing one so that they can “act as one”.
The reservoir is in the final stage of construction. Works are expected to be completed by March.


It will be at least one day before flooding conditions improve along the Neuse River near Goldsboro. According to the National Weather Service, the Neuse River remains just shy of 22-feet in “Moderate Flood Stage.” Starting Wednesday, the levels on the local river are expected to begin dropping. However, the flooding conditions along the Neuse River in Wayne County will likely continue through the end of the week.
Downstream, the Neuse River at Kinston remains in “Moderate Flood Stage” and is expected to remain near its current level through the rest of the week.
REMEMBER: Never attempt to drive over water-covered roadways. Turn around and don’t drown.


Sardinia - Italy
Ente Autonomo del Flumendosa (EAF)
2003 - 2010
Description for Uvini Hydropower (Italy)
Refurbishment of the Uvini hydropower plant.
- Reservoir ( Total Reservoir Vol. = 320 Mm3 )
- Penstock ( Diameter = 4.50 m )
- Underground Power House ( D (circular plan) = 17 m, H = 29.4 m )
- Electromechanical Works: No. 2 Turbines (Kaplan + Francis), Total IP = 15.8 MW
- Kaplan Turbine: Max. diverted flow = 30 m3/s, Max. net head = 50 m, Max. power = 14.5 MW
- Francis Turbine: Max. diverted flow = 3.0 m3/s, Max. net head = 50 m, Max. power = 1.3 MW
- Main Transformers ( No. 2 )
- Kaplan: No-load ratio = 9 / 70 kV, Rated power = 17.5 MVA
- Francis: No-load ratio = 0.4 / 15 kV, Rated power = 1.6 MVA
Hermitage Storage Plant (Jamaica)
The scope of the assignment is the rehabilitation of the existing Hermitage...
Gilgel Gibe Hydropower (Ethiopia)
The Gilgel Gibe hydropower plant is the first...
Kabuyanda Multi-Purpose Project (Uganda)
Kabuyanda is a multipurpose dam envisaged for agriculture (paddy rice and...
Giurgiu Ramiresti Irrigation (Romania)
Irrigation scheme with water from the Danube and irrigated area of 155'000...
HV Transmission System (Ethiopia-Sudan-Egypt)
The project consists in a prefeasibility study...
King Talal Hydropower (Jordan)
The project is aimed at the careful use of water...
Rumakali Hydropower (Tanzania)
Hydroelectric Power Plant, with IP = 525 MW, which the exploits of N° 5...
Roma Est Sewage Plant (Italy)
Sewage treatment plant for domestic and industrial waste water.
Carpat Pumped Storage Plant (Romania)
Pumped storage plant with an installed power of 300 MW.


Big Chaudière Dam replacement project
From: Public Services and Procurement Canada
Find out about the new Big Chaudière Dam that was built to replace the old dam.
On this page
- Project overview
- Project description
- Benefits to Canadians
- Latest news about this project
- Project background
- Related links
- More information
- Dokis, Ontario
Locate the Big Chaudière Dam on a map
- Type of project
- Replacement of the Big Chaudière Dam
- Lead department
- Public Services and Procurement Canada
- Construction firms
- Hatch of Niagara Falls, Ontario (engineering design contract)
- EBC Inc. of Brossard, Quebec (construction contract)
- $21.9 million
- Project status
- Completed in October 2016
The Big Chaudière Dam, built between 1910 and 1916 on the shores of Lake Nipissing and the French River, is 1 of 3 dams that control the flow of water from Lake Nipissing into the French River. The dam consists of a south channel dam and a north channel dam.
During the project, new dams were built slightly downstream from the original Big Chaudière dams. The old dams were then removed.
Following the Canadian Dam Association’s Dam Safety Guidelines, the new dams have:
- a south channel dam with 1 mechanical gate for water control levels equipped with maintenance stoplogs
- a north channel dam with 2 mechanical gates for water control levels equipped with maintenance stoplogs
- a south dam deck that provides access to a parking area on the island located between the south dam and the north dam
This construction project began in 2012 and was completed in October 2016.
- 2012: An engineering design contract for the replacement of the Big Chaudière Dam was awarded to Hatch of Niagara Falls, Ontario
- August 2014: A contract for the replacement of the dam was awarded to EBC Inc. of Brossard, Quebec
- Fall 2014: The contractor began the construction of the new south channel dam and removed the cofferdam as well as the existing dam
- November 2015: The contractor began the construction of the new north channel dam and removed the cofferdam as well as the existing dam
- October 2016: The project area was restored and the construction project was completed on October 31, 2016
Benefits to Canadians
The Big Chaudière Dam replacement project shows the Government of Canada’s commitment to achieving its priorities. The modern public infrastructure helps improve the environment, make communities safer and strengthen the economy.
During construction, the general contractor hired 15 Dokis First Nation labourers and 10 other local workers. Operation of the Big Chaudière Dam is providing ongoing full-time employment to 2 members of the Dokis First Nation.
The French River dams control the outflow from Lake Nipissing and are essential for maintaining its water level and for regulating the flow of water into the 105-kilometre-long French River. The new dams ensure that the vibrant tourism industry in and around the French River will continue to attract people from across Canada.
Latest news about this project
- August 14, 2017: Government of Canada officially opens Big Chaudière Dam
Find out more about the techniques and methods used for the Big Chaudière Dam replacement project.
General scope of construction project
The replacement of the Big Chaudière Dam will allow for continuous safe and reliable water management, and the new dam was built to meet the Canadian Dam Association’s guidelines.
The general scope of this construction project was to construct new north and south dams close to the existing ones and to remove the old dams.
Before the project, we conducted an environmental effects evaluation to help minimize the effects on wildlife in the area.
The Environmental Inspection Closing Report, prepared by EBC Inc., shows that measures designed to minimize risk posed by dam construction activities towards species at risk were successful.
Operation of the French River Dam Complex during construction
Lake Nipissing and the French River are regulated with the help of 3 federally owned dams:
- Portage Dam
- Little Chaudière Dam
- Big Chaudière Dam (includes a north and a south channel)
As construction first began on the Big Chaudière south dam, only the north dam was available for water management.
The Little Chaudière Dam helped compensate for this loss during construction. The Little Chaudière Dam typically only operates in extreme cases. They include higher than normal discharge or critical periods like the Lake Nipissing drawdown (typically from October to March) or spring freshet (typically between March and May).
The next phase of construction used a similar strategy. The Portage and Little Chaudière dams helped compensate once construction started on the north dam.
- Date modified:


Announcement on First Rainy-Lake of the Woods Watershed Lake Association Network Event at Rainy River Community College, International Falls, Minnesota
Boise Paper and H2O Power LP are undertaking a project to refurbish the canal and dam sluice gates on the International Dam at Fort Frances ON. This project will improve the level of preservation and functionality of the shared infrastructure at the International Dam and Canal. The 15 wooden gates were installed in 1909 during the original construction of the Generating Stations and are used to pass excess water to regulate the level of Rainy Lake in accordance with International Joint Commission directives.
Construction is expected to commence on June 1, 2015 and terminate in late 2017, with two gates being out of service at any given time. Four dam gates are expected to be refurbished in 2015; six in 2016; and the five canal gates in 2017. A specially designed coffer dam will be used to isolate two gates at a time so that the work can be completed in a dry and safe environment. The wooden gates will be replaced with steel gates, and the guides and sills will be replaced to reduce leakage and to ensure reliable operation. The existing steel gate frames and the gate lifting machines will be retained.
This work will not have any effect on the dam operator’s ability to keep Rainy Lake level within the Rule Curve band, but could hamper efforts to regulate the level under high water emergency conditions. Construction will be undertaken in such a way that the risk of exceeding the Rule Curve is minimized.
FURTHER INFORMATION: In USA: Scott Jutila (651) 290-5631 In Canada: Matt DeWolfe (800) 661-5922 ext. 3


Minister for Water Supply Umakanta Chaudhary laying the foundation stone for the construction of the Dhauligad drinking water project in Jumla district on Saturday.
JUMLA: Minister for Water Supply Umakanta Chaudhary has laid the foundation stone for the construction of the Dhauligad drinking water project in Jumla district amid a function in Jumla Saturday.
The project in the government’s priority has already been initiated and it would be completed in time, the Minister offered hope.
The 1.26 billion project is expected to benefit the total 44,163 households from Guthichaur, Chandannath Municipality and Tatopani Rural Municipality, said Surya Raj Kandel, director general at the Department of Water Supply and Sewerage Management.
The pipeline can handle 55 liters waters per second from the water source, 15 kilometers away from the district headquarters, Khalanga, said the Ministry Secretary Suresh Acharya.
The project is expected to provide a huge respite to local people, who have been deprived of drinking water for long, said former Minister of Karnali Province Naresh Bhandari.


- Flood Warning issued May 29 at 7:54PM CDT until May 31 at 1:13AM CDT by NWS
- Effective: 7:54 p.m. on Friday, May 29, 2015
- Expires: 1:13 a.m. on Sunday, May 31, 2015
...The Flood Warning continues for the following rivers in
Big Creek at Blairstown affecting Cass...Henry and Johnson Counties.
Blackwater River at Valley City affecting Johnson and Pettis
Blackwater River near Blue Lick affecting Cooper and Saline
Grand River near Sumner affecting Livingston...Carroll...Chariton
and Linn Counties.
Grand River near Brunswick affecting Carroll and Chariton Counties.
Marais Des Cygnes River at La Cygne affecting Linn County.
Marais Des Cygnes River near Trading Post affecting Linn and Bates
Marais Des Cygnes River at Osawatomie affecting Miami County.
South Grand River at Urich affecting Bates...Cass and Henry
Platte River At Sharps Station affecting Platte County.
Platte River near Platte City affecting Platte County.
Missouri River at Napoleon affecting Jackson...Lafayette and Ray
Missouri River at Waverly affecting Carroll...Lafayette and Saline
Missouri River At Miami affecting Carroll...Chariton and Saline
Missouri River at Glasgow affecting Chariton...Howard and Saline
Missouri River at Boonville affecting Cooper and Howard Counties.
The Flood Warning continues for
The Grand River near Sumner.
* until late Saturday night.
* At 6:45 PM Friday the stage was 27.9 feet.
* Flood stage is 26.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by
early Saturday morning.
* At 28.0 feet...Rural roads are under water.
* At 26.0 feet...Rural land adjacent to the river is flooded.
* At 23.0 feet...Bottomland 1 to 2 miles south of the gage begins to
Location FS Stage Day/Time Forecast
Sumner 26 27.9 Fri 07 PM 26.1 early Saturday morning
- See more at NOAA


MILHES, Rehabilitation of Hydroelectric Power Plant Components with Local Facilities (2015-2021)
HYDRO Project Team:
TUBITAK KAMAG supported, Budget: 23 million TL (9.3 million Euros), Project partners: TUBITAK MAM, TOBB ETU, TEMSAN, GIMAS AS. TOBB ETU project coordinator: Prof. Dr. Selin Aradag (February 2015-October 2019), TOBB ETU project coordinator: Assoc. Dr. Kutay Celebioglu (October 2019-March 2021)
Studies on the Domestic Design and Production of Hydroelectric Power Plant Components (MILHES) project, carried out with the support of TUBITAK Public Research Support Group (KAMAG), started in February 2015. Together with TUBITAK Marmara Research Center (MAM), TEMSAN and GIMAS, TOBB ETU HYDRO is carrying out rehabilitation work at Antalya Kepez-1 Hydroelectric Power Plant, which belongs to the Electricity Generation Corporation (EUAS). Within the scope of the project, the generator, turbine and auxiliary systems were renewed in one unit of the relevant power plant with domestic facilities. Within the project, TOBB ETU HYDRO was responsible for turbine design and model tests of the related turbine. In this context, the hydraulic and mechanical design of the new turbine components has been completed. The production of the turbine, whose model tests were carried out in the experimental setup within the center, was carried out by the relevant project executive institution. The project was completed in 2019, its rehabilitation was completed with domestic facilities, the power plant was commissioned and energy production continues. The project was officially terminated in March 2021.


The ECNEC in its recent meeting has approved the project, titled “Evacuation of Power from 800-MW Mohmand Dam Hydroelectric Power Plant (HPP) to the National Grid (PC-I),” presented by the Ministry of Energy’s Power Division. The project has been rationalized at a cost of Rs14,319.18 million, including a foreign exchange component (FEC) of Rs6,318.38 million. The project’s funding will be provided by the Asian Development Bank.
The National Transmission and Despatch Company (NTDC) will be responsible for executing the project, which will involve the construction of 135 kilometers of 220kV double circuit transmission lines. These transmission lines will facilitate the efficient transfer of power generated by the under-construction 800-MW Mohmand Dam HPP. The dam is located on the Swat River in the merged district of Mohmand, Khyber-Pakhtunkhwa.
The primary objective of the project is to establish the necessary infrastructure for transmitting the power generated by the hydroelectric power plant to the national grid. This will enable the widespread distribution and utilization of the electricity generated by the Mohmand Dam HPP, contributing to the overall power supply in the regions of Nowshera, Peshawar, and Mohmand in Khyber- Pakhtunkhwa. The project aligns with the goal of expanding access to electricity and strengthening the power transmission network in the country.